What public figures publish and believe, in their own words.
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Andrej Karpathy
David Heinemeier Hansson
Jensen Huang
Casey Handmer
Pieter Levels
Sam Altman
Tyler Cowen
Charity Majors
Hillel Wayne
Derek Sivers
Brian Potter
Kent Beck
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6 May
Indian software engineer and co-founder of Skcript; builds web apps and writes at varunraj.in.
Swedish essayist who writes Escaping Flatland, a newsletter of essays on relationships, thinking, writing and homeschooling.
American budget-travel writer who publishes as Nomadic Matt. Author of How to Travel the World on $50 a Day; runs nomadicmatt.com, a long-running site of destination guides, packing advice and gear recommendations.
Member of technical staff at Anthropic. He has led ML/AI teams at Amazon, Alibaba and Lazada, and writes about LLMs, recommender systems and engineering at eugeneyan.com.
some thoughts on working with ai models • context as infra • taste as config • verification for autonomy • scaling via delegation • closing the loop eugeneyan.com
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Cryptographer; teaches cryptography at Johns Hopkins and writes A Few Thoughts on Cryptographic Engineering.
There’s something ominous about the speed with which the entire world has marched to require identification on platforms and, as I expected, begin the process of banning anonymous VPNs. Related
Software engineer who writes about low-level and systems programming at nullprogram.com; author of the Elfeed feed reader, the Endlessh SSH tarpit and Enchive.
Concurrent, atomic MSI hash tables Readers will be familiar with Mask-Step-Index (MSI) hash tables, a technique for building fast, open-addressed hash tables in a dozen lines of code. If multiple threads or processes access an MSI table with at least one…
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London-based front-end architect, web developer evangelist and cloud consultant; Microsoft MVP. Writes at praveen.science and answers on Stack Overflow.
Economist at George Mason University, co-author of Marginal Revolution, host of Conversations with Tyler. Writes in short, dense claims about economics, culture and AI, and has moved position on AI in public more than once.
Their words
An excellent book, one of the two best books on a single Native American tribe I have read.
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marginalrevolution.com
Their words
A very good look at the negotiations behind the Geneva Conventions of 1949 and just how driven by national self-interest they were, including colonial motives from the major colonial powers, who wished to retain stronger rights to put down uprisings.
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marginalrevolution.com
Their words
An excellent and engaging book, which even serious fans can learn from.
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marginalrevolution.com
+ 2 more
Their words
There is also Devon Cox, Beyond Beauty: A Portrait of John Singer Sargent
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marginalrevolution.com
Their words
An excellent and engaging book, which even serious fans can learn from.
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marginalrevolution.com
Co-founder, chairman and chief investment officer of Ritholtz Wealth Management. Hosts the Masters in Business podcast for Bloomberg and wrote How NOT to Invest.
Their words
The TL:dr summary of the key points might whet your appetite for all of the fun stories and anecdotes in the book. Enjoy!
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ritholtz.com
5 May
Sociologist at Duke University writing on markets, exchange and moral order, and on plain-text and data-visualisation tools for social science.
Interactive fiction author and hacker; wrote Spider and Web and Hadean Lands, and designed the Glulx virtual machine.
Polyglot who speaks twenty languages and co-founded LingQ; argues that comprehensible input, not study, is what does the work.
Professor of psychology at the University of Toronto and Brooks and Suzanne Ragen Professor Emeritus at Yale. Author of Against Empathy, The Sweet Spot and Psych, and writer of the Small Potatoes newsletter.
Sociologist at Duke University writing on markets, exchange and moral order, and on plain-text and data-visualisation tools for social science.
Former L8 engineer at Meta, Microsoft and Atlassian, now writing and building solo on agentic engineering. Writes Kun's Field Notes and posts a lot about AI coding agents on X.
Software architect and futurist; founded ClariNet, chaired the EFF, and has written about robocars for two decades.
Sociologist at Duke University writing on markets, exchange and moral order, and on plain-text and data-visualisation tools for social science.
Creative coder behind neal.fun, a site of interactive web experiments including Spend Bill Gates' Money, The Deep Sea and Absurd Trolley Problems.
I’m looking for the first full-time developer for https://t.co/nprGVKUWBn! You’d work with me on making new web projects and games for the site. Preferably in nyc If anyone is interested or has leads dm me or email hi@neal.fun! Related
Chancellor of Germany since May 2025; leader of the CDU.
Herzlichen Glückwunsch, lieber @jensspahn, zu Deiner überzeugenden Wiederwahl zum Vorsitzenden der CDU/CSU-Bundestagsfraktion. Die @cducsubt ist mit Dir an der Spitze auch weiterhin eine starke Stütze der Bundesregierung und Taktgeber in der parlamentarischen Arbeit. Ich freue mich auf die weitere Zusammenarbeit! English, from German Congratulations, dear @jensspahn, on your convincing re-election as chairman of the CDU/CSU parliamentary group. With you at the helm, the @cducsubt will continue to be a strong pillar of the federal government and a pacemaker in parliamentary work. I look forward to our continued cooperation!
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Writes Hyperdimensional, a newsletter on AI policy and governance. A White House AI policy adviser in 2025; joined OpenAI on 6 July 2026 to lead its Strategic Futures team.
Indian software developer and prolific blogger on PHP, Laravel and JavaScript; open-source enthusiast publishing near-daily at amitmerchant.com.
CEO of Positive Sum and founder of Colossus. Hosts Invest Like the Best, interviewing investors and business leaders; the guests do most of the talking there.
Data scientist at Our World in Data and author of Not the End of the World. Writes By the Numbers, working through energy and climate questions with the numbers in front of them, and revising in public when they say something unexpected.
Writer and illustrator, author of Am I There Yet? and Out of the Blue; writes the newsletter Out of the Blue on grief, joy and everyday attention.
From one piece
How to make friends
3 beliefs, in the piece's order there
Their words
That said! I don't believe you need a group for the activity partners you're looking for. I don't even think you need friends per se for these day-to-day adventures.
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How to make friends mariandrew.substack.com
Their words
Perfect friends are not possible. Instead of wondering how to change them, perhaps try being just a tiny bit more patient, and see how they might end up surprising you.
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How to make friends mariandrew.substack.com
Their words
You see, I don't think making friends is hard after your 30s. And, I made several of my best friends after they got divorced.
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How to make friends mariandrew.substack.com
Founded CD Baby in 1998 and sold it in 2008, giving the proceeds to a charitable trust for music education. Since then a writer and speaker: five books and 550+ articles, published first at sive.rs, which they hand-code and keep free of advertising.
4 May
Former L8 engineer at Meta, Microsoft and Atlassian, now writing and building solo on agentic engineering. Writes Kun's Field Notes and posts a lot about AI coding agents on X.
Co-founder of AngelList. Writes and podcasts at nav.al in short, aphoristic pieces on startups, wealth and judgement rather than long essays.
‘Nothing Ever Happens’ Is Over You’re listening to the Naval Podcast. This is Nivi. There’s no set topic for this episode—it will be a potpourri. The Fully Interconnected Startup Naval, how are you using AI at Impossible, your current company, to cha…
startups Related
Writes jvns.ca, turning "hard and scary" topics — networking, debugging, Linux internals — into plain explanations and hand-drawn comics. Publishes Wizard Zines, illustrated programming zines. Software developer based in Montreal.
links to css colour palettes jvns.ca/blog/2026/05... (from a discussion over on mastodon) CSS Related
Clinical psychologist and clinical professor of psychiatry at UCSF. His 2010 meta-analysis established psychodynamic therapy as an evidence-based treatment; he has argued ever since that "evidence-based therapy" is used as a marketing term.
Co-founder of Modem and a founding engineer at Sentry, where he went on to be VP of Engineering. Co-author of Third-party JavaScript, and co-host of the State of Agentic Coding podcast with Armin Ronacher.
In 3 weeks at the next Devtools Toronto: traces.com - share agent coding sessions polarity.so - sandboxes for agent testing superuser.app - agents in your team chat tidra.ai - AI code maintenance at scale docsalot.dev - docs agents can read codepathfinder.dev - trace vulns across your codebase Related
Indian value investor who taught Behavioural Finance and Business Valuation as an adjunct professor at MDI Gurgaon. He writes the Fundoo Professor blog about investing, moats and mental models.
One consequence of Mr. Buffett taking a back seat is that we now get to learn from the people who have moved into the front seat. For the longest time, Ajit Jain operated undercover. Now he is teaching the world how he thinks about pricing risk. Berkshire’s role as a teacher of business and investment management is far from over. Quoting @TrungTPhan Ajit Jain was asked when Berkshire Hathaway will start insuring ships in the Strait of Hormuz. “Depends on the price” Related
Programmer; wrote Redis and hping, and blogs about C, systems programming and working alone.
Writes Hyperdimensional, a newsletter on AI policy and governance. A White House AI policy adviser in 2025; joined OpenAI on 6 July 2026 to lead its Strategic Futures team.
Designer and technologist; author of The Laws of Simplicity; former president of the Rhode Island School of Design; formerly at the MIT Media Lab.
Founded CD Baby in 1998 and sold it in 2008, giving the proceeds to a charitable trust for music education. Since then a writer and speaker: five books and 550+ articles, published first at sive.rs, which they hand-code and keep free of advertising.
Creator of the Zig programming language; president and lead developer of the Zig Software Foundation.
Coffee consultant and author of books on espresso, roasting and brewing, including The Professional Barista's Handbook and The Coffee Roaster's Companion; writes about brewing gear and roast control at scottrao.com.
From one piece
How to choose a grind setting
2 beliefs, in the piece's order there
Writes jvns.ca, turning "hard and scary" topics — networking, debugging, Linux internals — into plain explanations and hand-drawn comics. Publishes Wizard Zines, illustrated programming zines. Software developer based in Montreal.
3 May
Software engineer who writes the blog Made of Bugs about performance, debugging and understanding computer systems. Previously worked at Anthropic on interpretability, at Stripe on Sorbet, and at Ksplice.
Software engineer in Chicago; writes the cassidoo.co blog and a weekly developer newsletter.
Technologist and entrepreneur; former CTO of Threadless and chief technology officer of the 2012 Obama re-election campaign.
American-Polish journalist and historian, staff writer at The Atlantic; author of Gulag, Iron Curtain, Twilight of Democracy and Autocracy, Inc.
Computer scientist and director of the MIT Digital Currency Initiative; her research covers distributed systems, databases and digital currency.
"The only funding model I've seen work [for open source] is the most ancient one, which is patronage." open source Related
Creative coder behind neal.fun, a site of interactive web experiments including Spend Bill Gates' Money, The Deep Sea and Absurd Trolley Problems.
it's a beautiful day in cursor camp Related
Cardiologist and founder of the Scripps Research Translational Institute; writes Ground Truths on biomedical research, and wrote Super Agers and Deep Medicine.
London-based front-end architect, web developer evangelist and cloud consultant; Microsoft MVP. Writes at praveen.science and answers on Stack Overflow.
$40/hr to train AI with zero interview? If it sounds too good to be true, it probably is. 🕵️♂️ Related
Founder of the International Center for Clinical Excellence and originator of Feedback-Informed Treatment. Writes about what actually makes a therapist effective, usually against the field's own assumptions about training and experience.
Guardian columnist and environmental campaigner; wrote Feral and Regenesis, and argues for rewilding and against the food system as it is.
Get the Money out of Politics There’s a really simple way of ensuring that politics belongs to the people, not to the ultra-rich. By George Monbiot, published in the Guardian 30th April 2026 How do we know whether political funding is corrupt? Mostl…
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Statistician and software engineer who writes R packages for reproducible research and publishing, including knitr, bookdown and blogdown.
From one piece
Reflections on AI-assisted Programming
3 beliefs, in the piece's order there
Anthropic OpenAI Google
Their words
We owe a debt, not to companies like Anthropic, OpenAI, or Google, but to the authors of the free public raw materials that were used to train AI.
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Reflections on AI-assisted Programming yihui.org
Their words
Skill-wise, most software developers, as long as they are willing/able to pay for AI assistants, are on the same page now.
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Reflections on AI-assisted Programming yihui.org
open source
Their words
Going forward, I think the future will be filled with software abundance, or, more accurately, I'd call it "software proliferation". That is, centralized development will be history. Software will be highly personalized, especially for open source software.
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Reflections on AI-assisted Programming yihui.org
Member of technical staff at Anthropic. He has led ML/AI teams at Amazon, Alibaba and Lazada, and writes about LLMs, recommender systems and engineering at eugeneyan.com.
From one piece
How to Work and Compound with AI
3 beliefs, in the piece's order there
Founded CD Baby in 1998 and sold it in 2008, giving the proceeds to a charitable trust for music education. Since then a writer and speaker: five books and 550+ articles, published first at sive.rs, which they hand-code and keep free of advertising.
From one piece
Netizen
2 beliefs, in the piece's order there
Their words
Slowly the culture around me changed, so now it seems I need to explain my strange behavior — why I don't monetize everything like everyone else.
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Netizen sive.rs
Their words
Like picking up trash where you walk, even if the rest of the world is full of litter. You keep doing what you can to make things better.
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Netizen sive.rs
Writes Nintil, long researched essays on metascience, biology, economics and whatever he has decided to read the literature on.
There was only mom One morning I got a call from my younger brother Jaime. He was crying. He tells me my mom’s health, which had been slowly declining over the past month from advanced cancer, had reached the point where not much time was…
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Member of technical staff at Anthropic. He has led ML/AI teams at Amazon, Alibaba and Lazada, and writes about LLMs, recommender systems and engineering at eugeneyan.com.
Lawyer and everyday-carry gear reviewer who publishes scored knife, flashlight and multitool reviews at Everyday Commentary.
Their words
There is no perfect SAK, but the Compact is the best SAK. And this is not a "smartest Kardashian" scenario. Over the years I have genuinely loved carrying the Compact. Adding the pocket clip and the excellent PDW scales has made it one of my most frequently carried items.
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everydaycommentary.com
Their words
If you haven't found Jon Gadget on Youtube, you need to go subscribe now.
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everydaycommentary.com
2 May
Technologist and entrepreneur; former CTO of Threadless and chief technology officer of the 2012 Obama re-election campaign.
Quite a change of locale. Also I wear hats now. Sports hats. But motorsports. Related
Professor of finance at NYU's Stern School of Business, known for his work on valuation. He publishes his data, spreadsheets and classes free at Damodaran Online and writes the Musings on Markets blog.
In April 2026, US equities saw light in the midst of war and chaos. The S&P 500 rose 10.43%, its best month since April 2020, coming of COVID lows, and the ERP for the index dropped to 4.37%. The market was right then in being upbeat about the future. Is it right again? damodaran.com
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Writes jvns.ca, turning "hard and scary" topics — networking, debugging, Linux internals — into plain explanations and hand-drawn comics. Publishes Wizard Zines, illustrated programming zines. Software developer based in Montreal.
Organizational psychologist and professor at the Wharton School. Author of Give and Take, Originals, Think Again and Hidden Potential, host of the Re:Thinking podcast, and writer of the GRANTED newsletter.
Writes Strange Loop Canon, on the intersection of technology, economics and business — "building models of the world to understand these problem areas and to define them better".
Programmer; wrote Redis and hping, and blogs about C, systems programming and working alone.
Writer and author of All the Wrong Moves; his newsletter covers meditation, relationships and creativity, and he co-runs a perfume line.
From one piece
You can judge a book by its cover
3 beliefs, in the piece's order there
Writes on effective altruism, energy and the arithmetic behind arguments people repeat — including how much electricity a chatbot query actually uses.
Writes jvns.ca, turning "hard and scary" topics — networking, debugging, Linux internals — into plain explanations and hand-drawn comics. Publishes Wizard Zines, illustrated programming zines. Software developer based in Montreal.
Dutch bootstrapper who builds and runs their internet startups alone — Nomads.com, Remote OK, Hoodmaps, Photo AI and Interior AI — and has written about it at levels.io since 2013. Posts as @levelsio.
Their words
I been through so many air sensors, and I really think this is the best one so I bought one for living room and then another one for bedroom, and will get another one for my coworking
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levels.io
1 May
Web developer; former head of engineering at Flickr, author of Building Scalable Web Sites, and co-founder and CTO of Slack.
Social scientist at King's College London; writes The Great Gender Divergence on why societies differ in how they treat women.
Technical educator, conference speaker and developer relations engineer based in Ottawa, Canada. Author of the Anubis bot filter and of over 400 articles at xeiaso.net.
Novelist and critic, author of The Body Scout and Metallic Realms; writes the newsletter Counter Craft on fiction craft and the publishing industry.
Co-founder of Foundry Group and of Techstars. Has blogged at Feld Thoughts since 2004 and has written or co-written nine non-fiction books on startups and venture capital.
Web developer; former head of engineering at Flickr, author of Building Scalable Web Sites, and co-founder and CTO of Slack.
Writer and education-technology critic; published Hack Education for a decade and wrote Teaching Machines.
American budget-travel writer who publishes as Nomadic Matt. Author of How to Travel the World on $50 a Day; runs nomadicmatt.com, a long-running site of destination guides, packing advice and gear recommendations.
Economist; Ronald A. Kurtz Professor of Entrepreneurship at MIT Sloan, former chief economist of the International Monetary Fund, and co-author of 13 Bankers and Power and Progress.
https://t.co/yO3cS8Aado there is a way out of the Strait of Hormuz, if you think about it carefully… Related
Mathematician and maker of the 3Blue1Brown YouTube channel, which explains mathematics through animation. Creator of the open-source Manim animation library and founder of the Summer of Math Exposition.
With this lineup of speakers, this promises to be very interesting. Quoting @jdlichtman The Future of Mathematics Symposium is being held on May 1st-2nd! We have a truly exceptional group of speakers, with multiple Fields Medalists including Terence Tao. Tune in for livestream 9am-5pm PST (link below) Related
London-based front-end architect, web developer evangelist and cloud consultant; Microsoft MVP. Writes at praveen.science and answers on Stack Overflow.
🚀 Re-launched my blog! 🎉 💻 Sharing real-world learnings, experiments, and dev insights. 📚 🌐 Excited to give back to the community consistently! 🙌🏻 #Blogging #Developers #LearningInPublic Related
Brazilian-American staff software engineer working on platforms, AI and developer productivity. Writes about engineering and his setup at ivansantos.me.
Writer on the intersection of technology and finance. Author of the Bits about Money newsletter and host of the Complex Systems podcast; previously at Stripe.
Austrian developer. Created the libGDX game framework, and more recently the pi coding agent, which moved with them to Earendil — Armin Ronacher's company — in April 2026. Writes at mariozechner.at.
Writer and illustrator, author of Am I There Yet? and Out of the Blue; writes the newsletter Out of the Blue on grief, joy and everyday attention.
From one piece
Take your time
2 beliefs, in the piece's order there
Freelance climate and energy analyst in Oslo, writing on Europe, the US and Australia; worked in the Australian renewables industry before that.
From one piece
The exact wrong lesson to learn from data centre infrasound fears
3 beliefs, in the piece's order there
Their words
The only solution is preventing the disease, not treating the symptoms.
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ketanjoshi.co
data centers
Their words
There are simply too many data centres being built, and they're too big, being built too fast.
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ketanjoshi.co
data centers
Their words
Reformation is impossible for AI data centres, at least, not without a massive change of course and an ideological reckoning.
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ketanjoshi.co
Freelance research analyst and writer of the blog Aceso Under Glass, known for 'epistemic spot checks' of non-fiction claims.
From one piece
Dairy cows make their misery expensive (but their calves can’t)
3 beliefs, in the piece's order there
Their words
if we can't solve the sadist problem in nursing homes I don't see how we can assume it's solved in cows.
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acesounderglass.com
Their words
I have a pet theory that removing the option for antibiotics forces farms to treat animals better, because bad conditions engender disease and without the quick fix of antibiotics that can get very expensive.
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acesounderglass.com
Their words
An advantage cows have that egg chickens lack is that stress immediately and measurably decreases their economic productivity.
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acesounderglass.com
Free software developer; maintainer of sway, wlroots, aerc and scdoc, and founder of the SourceHut (sr.ht) software forge.
I can't cancel GitHub Copilot Back when Copilot first came out, I immediately disliked it. But I decided to give it a fair shake and tried to evaulate it in good faith. I wasn’t interested in paying for it, but they had a form for FOSS community mem…
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30 April
Web developer; former head of engineering at Flickr, author of Building Scalable Web Sites, and co-founder and CTO of Slack.
Member of technical staff at Anthropic. He has led ML/AI teams at Amazon, Alibaba and Lazada, and writes about LLMs, recommender systems and engineering at eugeneyan.com.
excited to share this and help everyone be more cyber secure Quoting @claudeai Claude Security is now in public beta for Claude Enterprise customers. Claude scans your codebase for vulnerabilities, validates each finding to cut false positives, and suggests patches you can review and approve. Related
American software engineer; worked on code-server at Coder and teaches TypeScript and open-source contribution. Publishes at joeprevite.com.
Founding member of OpenAI and former director of AI at Tesla; creator of nanoGPT and the term "vibe coding".
Web developer; former head of engineering at Flickr, author of Building Scalable Web Sites, and co-founder and CTO of Slack.
Creative coder behind neal.fun, a site of interactive web experiments including Spend Bill Gates' Money, The Deep Sea and Absurd Trolley Problems.
Sometimes you need to let an idea grow in the back of your head for 7 years before making it Quoting @nealagarwal I present to you - Cursor Hats Related
Professor of international affairs at Johns Hopkins SAIS and co-author, with Abraham Newman, of Underground Empire: How America Weaponized the World Economy.
Writer on learning and skill acquisition; author of Ultralearning and Get Better at Anything, known for the MIT Challenge and the Year Without English.
New Article: I Wrote Ultralearning. This is What I’d Change Because of AI https://t.co/SmHV6OuKYC When I wrote Ultralearning, AI wasn’t part of the conversation. Today, it changes how we research, practice and get feedback, but not the fundamental effort required to learn. Related
Founder of HumanLayer; wrote 12-Factor Agents, on how to build AI agents that hold up in production.
Freelance climate and energy analyst in Oslo, writing on Europe, the US and Australia; worked in the Australian renewables industry before that.
From one piece
Australia’s data centre growth proportion now matches the US
2 beliefs, in the piece's order there
data centers energy
Their words
Even if a small fraction of this pipeline ends up operational, data centres will drive far more than 50% of demand growth in the NEM.
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ketanjoshi.co
Their words
In the face of weakened renewable roll-out in Australia, the most likely outcome is simply that coal and gas just generate more, and for many more years past their shut down date.
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ketanjoshi.co
Pseudonymous writer; posts careful, funny investigations of everyday questions — air quality, seed oils, arguing, chess — usually by reading the studies.
Statistician at Carnegie Mellon; writes on complex systems, machine learning and inference, and has kept a books-read notebook since 2000 that is now thousands of entries long.
Their words
With that disclaimer out of the way, this is a great book, which simultaneously illuminates some very, very important phenomena, and is very well-written.
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bactra.org
Their words
Mind candy fantasy: sequel to The Ninth Rain (in my backlog; suffice to say: good), and continuing the high standard of that book.
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bactra.org
Their words
I can have no opinion about whether the translation is accurate, but it is pretty good English verse.
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bactra.org
29 April
Software engineer, Wikipedia editor and crypto critic; writes Citation Needed and runs Web3 is Going Just Great.
Founded CD Baby in 1998 and sold it in 2008, giving the proceeds to a charitable trust for music education. Since then a writer and speaker: five books and 550+ articles, published first at sive.rs, which they hand-code and keep free of advertising.
Bluesky I’m not autistic, but my heroes are. Related
x.com I’m not autistic, but my heroes are. Related
Creative coder behind neal.fun, a site of interactive web experiments including Spend Bill Gates' Money, The Deep Sea and Absurd Trolley Problems.
we're watching king kong vs godzilla right now Quoting @nealagarwal Introducing Cursor Camp, a website to hang out with other cursors. Out now, enjoy :) Related
Neuroscientist and novelist writing on consciousness, artificial intelligence and culture in the newsletter The Intrinsic Perspective.
Software engineer and writer; worked on Mapbox and built Placemark and Simple Statistics, and blogs at macwright.com.
Canadian full-stack web developer who makes JavaScript and CSS video courses and co-hosts the Syntax podcast.
Creative coder behind neal.fun, a site of interactive web experiments including Spend Bill Gates' Money, The Deep Sea and Absurd Trolley Problems.
Introducing Cursor Camp, a website to hang out with other cursors. Out now, enjoy :) Related
Co-founder and partner at Union Square Ventures in New York. Has written the AVC blog almost every day since 2003, on venture capital, startups, music and crypto.
I took a walk around the Union Square neighborhood a couple of Fridays ago with our new partner @mignano and we recorded it so everyone can listen to our conversation. We talked about the past, present, and future of startups, VC, and NYC. Quoting @mignano Fred Wilson is one of the greatest VCs of all time. He is also my new partner at @USV and I'm lucky to say that. We've known each other for years, but becoming partners felt like a reason to get to know him even better. So a few weeks ago, we walked around Union Square and caught up about what @fre… startups Related
Founded CD Baby in 1998 and sold it in 2008, giving the proceeds to a charitable trust for music education. Since then a writer and speaker: five books and 550+ articles, published first at sive.rs, which they hand-code and keep free of advertising.
Computer scientist and director of the MIT Digital Currency Initiative; her research covers distributed systems, databases and digital currency.
interesting thread on currency history and what might be in store with the yuandollar Quoting @izakaminska 🏴☠️1/ If what I think is happening is really happening, then I can make some predictions. Especially about incoming European problems. But first an important side story, which also relates to the “special relationship”. What a lot of people don’t know is that when Minos Zombanakis, the father of… Related
Guardian columnist and environmental campaigner; wrote Feral and Regenesis, and argues for rewilding and against the food system as it is.
Alternating Current If this crucial circulation system shuts down, the civilisational impacts will be irreversible. So why isn’t it a top priority? By George Monbiot, published in the Guardian 23rd April 2026 The poor and middle pay taxes,…
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Economist at George Mason University, co-author of Marginal Revolution, host of Conversations with Tyler. Writes in short, dense claims about economics, culture and AI, and has moved position on AI in public more than once.
Data scientist at Our World in Data and author of Not the End of the World. Writes By the Numbers, working through energy and climate questions with the numbers in front of them, and revising in public when they say something unexpected.
Robert Gray Dodge Professor of Network Science at Northeastern University; discovered scale-free networks and, with Reka Albert, proposed the Barabasi-Albert model.
A special week: I had the privilege of seeing two outstanding Hungarian scientists I deeply admire—Katalin Karikó @kkariko and Réka Albert—inducted into the U.S. National Academy of Sciences in Washington DC. Join me in congratulating them both! @theNASciences America Related
Mac and iOS developer at the Iconfactory, where he has worked on apps including Twitterrific and Tot. He writes about development at furbo.org.
Mac and iOS developer at the Iconfactory, where he has worked on apps including Twitterrific and Tot. He writes about development at furbo.org.
Their words
This bug affected the App Library, Mail, Notes, Messages, Settings, and more. Having a device that couldn’t find things was crippling.
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furbo.org
28 April
Founded CD Baby in 1998 and sold it in 2008, giving the proceeds to a charitable trust for music education. Since then a writer and speaker: five books and 550+ articles, published first at sive.rs, which they hand-code and keep free of advertising.
I have so much more to say on this subject, but this book is done now because I believe short books are useful. So the conversation continues on the website: Related
Economist specialising in global income inequality; formerly lead economist in the World Bank research department, now at the CUNY Graduate Center and author of the Global Inequality and More newsletter.
Software engineer, Wikipedia editor and crypto critic; writes Citation Needed and runs Web3 is Going Just Great.
Former L8 engineer at Meta, Microsoft and Atlassian, now writing and building solo on agentic engineering. Writes Kun's Field Notes and posts a lot about AI coding agents on X.
Programmer and writer on computer architecture, performance, and software reliability. He has worked on CPU design at Centaur Technology and on software at Google and Microsoft, and writes long-form technical essays at danluu.com.
Can someone at OpenAI help me with an account issue? I'm doing non-security testing and constantly getting flagged for doing "cybersecurity" work. I did the approval / ID scan on my personal account, but my work account is in an infinite loop and I can't use codex/GPT at work. OpenAI Related
Sociologist at Duke University writing on markets, exchange and moral order, and on plain-text and data-visualisation tools for social science.
Co-founder of AngelList. Writes and podcasts at nav.al in short, aphoristic pieces on startups, wealth and judgement rather than long essays.
American writer and long-term traveller. Blogs at tynan.com about travel, owning few possessions, habits and the gear he carries; author of Superhuman by Habit and Make It Big.
New Post on https://t.co/1ubXCLJytr — My Appalachian Trail Adventure Related
Experimental psychologist and author of the blog Experimental History, on psychology, science reform and creativity.
Programmer, teacher and speaker; long-time Microsoft developer-community figure, host of the Hanselminutes podcast and author of the hanselman.com blog.
The earliest DOS source code was found on printer paper in Tim Paterson's garage so we've open sourced it on 86-DOS 1.00’s 45th anniversary! This is next-level software archaeology for preservation, and plain ol’ curiosity. #DOS #RetroComputing opensource.microsoft.com
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Writer and consultant on formal methods and software correctness; author of Practical TLA+ and Logic for Programmers.
Founded CD Baby in 1998 and sold it in 2008, giving the proceeds to a charitable trust for music education. Since then a writer and speaker: five books and 550+ articles, published first at sive.rs, which they hand-code and keep free of advertising.
Emeritus Professor of Statistics at the University of Cambridge, former president of the Royal Statistical Society, and author of The Art of Statistics.
Kennedy supporting Trump's maths: a great example for teaching school students about percentage change. youtube.com
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Co-founder and CTO of Honeycomb; previously an infrastructure engineer at Parse, Facebook and Linden Lab, and co-author of Observability Engineering.
If you ever wondered who can shit talk the most shit the fastest, @bcantrill or me, here is your chance to find out. (What you can't see: I'm wearing an "0x Engineer" t-shirt by Oxide as we record 😍) Quoting @heavybit On episode 89 of @o11ycast, Ken Rimple and Charity Majors (@mipsytipsy) sit down with Bryan Cantrill (@bcantrill) of @oxidecomputer. They explore Oxide’s mission to bring cloud-like infrastructure to on-prem environments and unpack why owning hardware is making a comeback. Tune in! Related
Software Factory Meetup, day after tomorrow, get on it. I'll be there too. 🍻 Quoting @PeterBell Agentic software engineering: - How do I get agents to generate quality code? - How can I automate the verification of the generated code? - How can my team build a robust software factory to accelerate velocity? - The first 20% is easy - how can I help the rest of my product, engineering and QA or… Related
Indian value investor who taught Behavioural Finance and Business Valuation as an adjunct professor at MDI Gurgaon. He writes the Fundoo Professor blog about investing, moats and mental models.
Prisoners’ dilemma and red queen come back in new avatars. Quoting @AiwithYasir 🚨BREAKING: Two researchers from UPenn and Boston University just published a paper that should be uncomfortable reading for every CEO automating their workforce right now. The argument is straightforward. Every company replacing workers with AI is also eliminating its own future customers. Laid of… Related
Software engineer working on distributed systems and databases; creator of rqlite, the distributed database built on SQLite.
Major new release of rqlite (https://t.co/hzLPmWFhl1) - the lightweight, fault-tolerate database built on SQLite - v10 out now. Includes more robust clustering, better SQLite WAL handling, and a new built-in console application for easy management. github.com
SQLite Related
American writer and long-term traveller. Blogs at tynan.com about travel, owning few possessions, habits and the gear he carries; author of Superhuman by Habit and Make It Big.
Co-founder of Foundry Group and of Techstars. Has blogged at Feld Thoughts since 2004 and has written or co-written nine non-fiction books on startups and venture capital.
Co-founder of Superlogical, started in 2026 to build server-side terminal infrastructure; creator of Ghostty. Co-founded HashiCorp and created Vagrant and Terraform before that.
Their words
I love GitHub more than a person should love a thing, and I'm mad at it.
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mitchellh.com
27 April
Founded CD Baby in 1998 and sold it in 2008, giving the proceeds to a charitable trust for music education. Since then a writer and speaker: five books and 550+ articles, published first at sive.rs, which they hand-code and keep free of advertising.
For the last three years, my boy and I have had a pet mouse. We got her from a pet store, and he’s carried her in his hand through so many adventures in forests, beaches, and playgrounds. Drawings and stories for and about her. You’ve never seen a mouse so loved.... Related
Interactive fiction author and hacker; wrote Spider and Web and Hadean Lands, and designed the Glulx virtual machine.
Computer scientist and director of the MIT Digital Currency Initiative; her research covers distributed systems, databases and digital currency.
How is it possible for Iran to collect dollars? Quoting @IranIntl_En The Central Bank of Iran has opened four accounts in rials, yuan, US dollars, and euros to receive toll payments collected by the Revolutionary Guard's Navy, a senior lawmaker said on Monday. Parliament will move to make the toll system binding law at its first session by approving a bill titled “H… Related
Founder of the Silicon Valley Product Group; wrote Inspired, Empowered and Transformed on how product organisations work.
Build To Learn FAQ In our last article, we argued that especially in the age of AI, we are all builders, but that there is a very meaningful difference between building to learn (known as product discovery) versus building to earn (known…
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Professor of psychology at the University of Toronto and Brooks and Suzanne Ragen Professor Emeritus at Yale. Author of Against Empathy, The Sweet Spot and Psych, and writer of the Small Potatoes newsletter.
Distributed-systems safety researcher; runs the Jepsen consistency-testing project and wrote the Riemann monitoring system.
JavaScript programmer; creator of the jQuery library, author of Secrets of the JavaScript Ninja, and long-time engineer at Khan Academy.
An amusing side effect of using LLMs when working at @khanacademy is that occasionally they're like "You're trying to cheat, aren't you?? No cheating allowed!!" (Clearing the chat and using more authority usually works well!) LLMs Related
Founded CD Baby in 1998 and sold it in 2008, giving the proceeds to a charitable trust for music education. Since then a writer and speaker: five books and 550+ articles, published first at sive.rs, which they hand-code and keep free of advertising.
Bluesky Since we moved from city to rural land, to a house where the bathroom and kitchen are outside, my boy observed: “This year there are way more full moons.” Related
x.com Since we moved from city to rural land, to a house where the bathroom and kitchen are outside, my boy observed: “This year there are way more full moons.” Related
Game designer and director of the NYU Game Center; made Universal Paperclips and writes Donkeyspace.
Writes Strange Loop Canon, on the intersection of technology, economics and business — "building models of the world to understand these problem areas and to define them better".
Engineering leader and writer; wrote An Elegant Puzzle, Staff Engineer and The Engineering Executive's Primer, and blogs at Irrational Exuberance.
Austrian developer. Created the libGDX game framework, and more recently the pi coding agent, which moved with them to Earendil — Armin Ronacher's company — in April 2026. Writes at mariozechner.at.
Swedish essayist who writes Escaping Flatland, a newsletter of essays on relationships, thinking, writing and homeschooling.
Programmer; wrote Redis and hping, and blogs about C, systems programming and working alone.
Data scientist at Our World in Data and author of Not the End of the World. Writes By the Numbers, working through energy and climate questions with the numbers in front of them, and revising in public when they say something unexpected.
Author of Recoding America; founded Code for America and was US deputy chief technology officer from 2013 to 2014. Writes Eating Policy on why governments cannot do what they decide to do.
From one piece
A (shorter) Three Horizons Framework for Government Reform
3 beliefs, in the piece's order there
Their words
The forty-page PDF used to feel intolerable. The well-designed web form will start to feel that way too, and faster than the last transition did.
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eatingpolicy.com
government
Their words
AI is not only an exogenous shock that government will have to absorb. It is also moving the bar on what counts as acceptable service in the first place.
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eatingpolicy.com
Their words
Extending the lifespan of a brittle system just means the system eventually fails more spectacularly.
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eatingpolicy.com
Statistician and software engineer who writes R packages for reproducible research and publishing, including knitr, bookdown and blogdown.
Preliminary Support for Typst in knitr A few weeks ago I added preliminary support for Typst to knitr. The way it works is simple: if your file has the extension .Rtyp, knitr will recognize it as a Typst document, knit it, and produce a .typ output file. The…
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26 April
London-based front-end architect, web developer evangelist and cloud consultant; Microsoft MVP. Writes at praveen.science and answers on Stack Overflow.
So many interesting things in this image. - X tells who blocked you! - Allows people to view the post, but not engage. - Alright, I've been a fan of this person for so long, but suddenly disappeared! - Not sure what happened! Anyway, hopefully things should turn out for well! 🥹 Related
Today's Community Office Hours I started was fun! 🤩 Built some super cool stuff including: - A portal for Cats in Tech for members! - A portal for SSoC that tracks Live PRs getting merged! - A certificate distribution engine for comms! Happy to chat with you all on these! 💪🏻 Related
Investigative journalist on policing, forensics and criminal justice; wrote Rise of the Warrior Cop and writes The Watch.
Co-founder and CEO of Snap Inc., the company behind Snapchat, which he started in 2011 while studying product design at Stanford.
From one piece
How to win when software is not a moat | Evan Spiegel (Snapchat CEO)
5 beliefs, in the piece's order there
Their words
the more that we could build a platform uh around our business, the more that we could build an ecosystem with creators and developers, the harder it would be for folks uh to to just copy that.
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youtube.com
Their words
15 years ago we essentially learned that software is not a moat, right? Which is something that everyone is discovering today with AI, right?
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youtube.com
Their words
as we look forward to, you know, sort of these next generation form factors, things like glasses, there's going to be a whole new set of opportunities and a whole new surface for people to build generational consumer companies.
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youtube.com
+ 2 more
Their words
what really mattered was connecting you to the right people. And so, if you could just connect someone not to all their friends, but to their best friend, to their partner, to their spouse, the people that they cared most about in the world, that that that's where the majority of the value is in the network.
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youtube.com
Their words
And I think people don't spend nearly enough time thinking about, you know, distribution and figuring out distribution. And that seems to me uh to be a huge differentiator.
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youtube.com
Software engineer who writes about low-level and systems programming at nullprogram.com; author of the Elfeed feed reader, the Endlessh SSH tarpit and Enchive.
25 April
Founder and CEO of the search engine DuckDuckGo, and co-author of the books Traction and Super Thinking.
Cardiologist and founder of the Scripps Research Translational Institute; writes Ground Truths on biomedical research, and wrote Super Agers and Deep Medicine.
Chancellor of Germany since May 2025; leader of the CDU.
Social scientist at King's College London; writes The Great Gender Divergence on why societies differ in how they treat women.
Chancellor of Germany since May 2025; leader of the CDU.
Herzlichen Glückwunsch zur Wiederwahl zum Vorsitzenden der CDA, lieber @RadtkeMdEP! Die @CDU muss auch weiterhin die starke Stimme der arbeitenden Mitte in unserem Land sein. Dafür braucht es auch weiter eine starke CDA! English, from German Congratulations on your re-election as chairman of the CDA, dear @RadtkeMdEP! The @CDU must continue to be the strong voice of the working middle class in our country. This requires a strong CDA to continue!
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Robert Gray Dodge Professor of Network Science at Northeastern University; discovered scale-free networks and, with Reka Albert, proposed the Barabasi-Albert model.
Join us-- Physical Network Satellite at @NetSciConf in Boston! Quoting @__jymmt__ 🚨One week remaining🚨 Call for contributions to Physical Networks, IV Edition @NetSciConf , Boston is still open. 🗓️ June 2, 2026, 14:30~ Confirmed speakers: @masonporter , Jörn Dunkel, Katia Bertoldi, Xiangyi Meng, @ivanbonamassa Submit by 30 April 2026: physnet@ceu.edu Related
Writes Stratechery, a subscription newsletter on the business and strategy of technology, and hosts the Dithering and Sharp Tech podcasts.
Best Cook take of the week Quoting @drbarnard After way too many nauseatingly positive takes on Cook’s tenure, this is exactly the post I needed to close out the week. 👏 @andrewsharp (and by extension, @benthompson) Related
Software engineer and writer; former CTO of Wave, now at Anthropic. Blogs at benkuhn.net on attention, engineering management and doing hard things well.
New post! "You should try contra dancing" I took a break from managementposting to pitch you all on my favorite niche activity: Related
Writer and author of All the Wrong Moves; his newsletter covers meditation, relationships and creativity, and he co-runs a perfume line.
From one piece
Practice Nothing, the most profound of all practices
2 beliefs, in the piece's order there
Their words
Having a fulfilling Nothing practice requires an equal embrace of all present sensation.
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sashachapin.substack.com
Their words
Nothing practice is psychologically thorough: all of your stuff will come up, in an order not determined by you.
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sashachapin.substack.com
Economist at George Mason University. Writes Overcoming Bias on prediction markets, signalling and the far future, and wrote The Age of Em and The Elephant in the Brain.
From one piece
My Best Idea: Decision Markets
2 beliefs · overcomingbias.com
Programmer known online as technomancy; author of Leiningen, the Clojure build tool, and a maintainer of the Fennel programming language.
From one piece
in which more paths are charted towards code independence
3 beliefs, in the piece's order there
JavaScript
Their words
As the software industry is largely driven by trends and fashion, React's "cool factor" led to a mass amnesia regarding how to make normal, well-designed web apps made of HTML with a sprinkling of scripting on top and everything became one big tangled, brittle mass of Javascript that completely keeled over when scripting wasn't available.
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technomancy.us
Their words
When a company dominates the market, they capture not only their own users but even the imaginations of people actively resisting them.
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technomancy.us
Their words
We shouldn't replace Github with one site at all; we need the strength and resilience that only comes with diversity
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technomancy.us
Software engineer who writes about low-level and systems programming at nullprogram.com; author of the Elfeed feed reader, the Endlessh SSH tarpit and Enchive.
From one piece
My brave new code-signing world
2 beliefs, in the piece's order there
Science fiction novelist, journalist and technology activist; writes the daily blog and newsletter Pluralistic, and coined the term enshittification.
Their words
Ada Palmer may just be the most bewilderingly talented person I know: a genius sf writer, incredible librettist and singer, wildly innovative educator, and a leading historian of the Renaissance, and last year, she published her magnum opus, Inventing the Renaissance, a stunning book about so much more than history
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pluralistic.net
24 April
Writes Stratechery, a subscription newsletter on the business and strategy of technology, and hosts the Dithering and Sharp Tech podcasts.
There is nothing about this that is amazing. It was predicted endlessly, and those predictions were dismissed by people citing the fact that big companies opposed these measures. They opposed them because while their relative position is stronger, the pie is now smaller. Quoting @AdamThierer truly one of the most amazing developments in trans-Atlantic tech policy over the past 20 years is the way that Europe set out to regulate US tech giants into the ground, but only made them more dominant as a result. This Economist headline really says it. Related
CEO of Vercel; creator of Next.js and Socket.IO. Writes at rauchg.com.
American open-source program lead working on WordPress; a WordPress core contributor and release lead who writes at jeffpaul.com.
The WordPress AI plugin 0.8.0 is now available! Highlights in this release: • New Refine from Notes experiment to automatically apply editorial feedback • New AI dashboard widgets • Integration with Gutenberg Guidelines • Image Generation promoted to a stable Feature make.wordpress.org
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Software architect and futurist; founded ClariNet, chaired the EFF, and has written about robocars for two decades.
Writes Strange Loop Canon, on the intersection of technology, economics and business — "building models of the world to understand these problem areas and to define them better".
Novelist and critic, author of The Body Scout and Metallic Realms; writes the newsletter Counter Craft on fiction craft and the publishing industry.
Technical educator, conference speaker and developer relations engineer based in Ottawa, Canada. Author of the Anubis bot filter and of over 400 articles at xeiaso.net.
Canadian full-stack web developer who makes JavaScript and CSS video courses and co-hosts the Syntax podcast.
Freelance web developer and instructor. Author of the Dive Into Docker course; writes tutorials on Docker, deployment and development environments at nickjanetakis.com.
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Author of Recoding America; founded Code for America and was US deputy chief technology officer from 2013 to 2014. Writes Eating Policy on why governments cannot do what they decide to do.
American budget-travel writer who publishes as Nomadic Matt. Author of How to Travel the World on $50 a Day; runs nomadicmatt.com, a long-running site of destination guides, packing advice and gear recommendations.
Writes Strange Loop Canon, on the intersection of technology, economics and business — "building models of the world to understand these problem areas and to define them better".
Writes on effective altruism, energy and the arithmetic behind arguments people repeat — including how much electricity a chatbot query actually uses.
Investigative journalist on policing, forensics and criminal justice; wrote Rise of the Warrior Cop and writes The Watch.
From one piece
Why would ChatGPT "confess" to a crime it didn't commit?
3 beliefs, in the piece's order there
Europe
Their words
Canada and much of Europe have adopted different interrogation techniques — such as the PEACE method — which emphasize collecting reliable information over coercion. These approaches still garner confessions; they’re just more reliable.
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radleybalko.substack.com
Their words
A confession, though, will sometimes preclude police from doing the very sort of investigation that would prove the confessor’s innocence.
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radleybalko.substack.com
America
Their words
The Reid technique works at getting confessions. But it’s less successful at getting accurate ones.
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radleybalko.substack.com
Software engineer and writer; former CTO of Wave, now at Anthropic. Blogs at benkuhn.net on attention, engineering management and doing hard things well.
From one piece
You should try contra dancing
3 beliefs, in the piece's order there
Professor of finance at NYU's Stern School of Business, known for his work on valuation. He publishes his data, spreadsheets and classes free at Damodaran Online and writes the Musings on Markets blog.
The SpaceX IPO is coming, and it will be a doozy, a futuristic company (spaceships, satellites and AI), a founder who will keep things interesting (Musk) and a price tag that may make it the most highly priced IPO of all time. bit.ly
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23 April
Demographer; writes on fertility, marriage and population, and directs the Pro-Family Initiative at the Institute for Family Studies.
Professor at Wharton studying how people actually use AI, and author of Co-Intelligence. Writes One Useful Thing, where the claims are dated and testable because the thing they describe keeps changing under them.
Mac and iOS developer at the Iconfactory, where he has worked on apps including Twitterrific and Tot. He writes about development at furbo.org.
Writer and illustrator, author of Am I There Yet? and Out of the Blue; writes the newsletter Out of the Blue on grief, joy and everyday attention.
Software developer and entrepreneur; co-founder of Heroku, author of The Twelve-Factor App, and a researcher at Ink & Switch.
It's astonishing how much time in my day I spend typing in two-factor codes, picking the right Google account, and otherwise trying to convince the computer that I am who I say I am. I believe we can do better. Would love to see a talk submission if you're working on this. Quoting @localfirstconf "It's been a kind of a good deal to say like, look, I'll just let Google manage my identity and then I can click the login with Google button everywhere. But it's a little bit of a deal with the devil. " @_adamwiggins_ Google Related
Writer, photographer and software maker based in Japan; publishes long-form essays, walking newsletters and self-made books at craigmod.com.
TBOT in ebook form is $1.99 again (for a limited time!): kindle: amzn.to/4cBzZkU bookshop: bookshop.org
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Writer on learning and skill acquisition; author of Ultralearning and Get Better at Anything, known for the MIT Challenge and the Year Without English.
New Article: How to Motivate Yourself to Exercise Regularly https://t.co/vYVSte9v6Y I’ve noticed that motivation to exercise comes and goes, but consistency depends on something else entirely. In this article, I try to unpack what that is and how to work with it. Related
American budget-travel writer who publishes as Nomadic Matt. Author of How to Travel the World on $50 a Day; runs nomadicmatt.com, a long-running site of destination guides, packing advice and gear recommendations.
Writes Very Serious, a newsletter on politics, the economy and culture, and hosts the podcast of the same name.
Structural engineer and senior infrastructure fellow at the Institute for Progress; writes Construction Physics on why physical things cost what they cost.
22 April
Programmer and writer; co-wrote The Rust Programming Language and worked on Rust's documentation for years.
Technical educator, conference speaker and developer relations engineer based in Ottawa, Canada. Author of the Anubis bot filter and of over 400 articles at xeiaso.net.
Former L8 engineer at Meta, Microsoft and Atlassian, now writing and building solo on agentic engineering. Writes Kun's Field Notes and posts a lot about AI coding agents on X.
American-Polish journalist and historian, staff writer at The Atlantic; author of Gulag, Iron Curtain, Twilight of Democracy and Autocracy, Inc.
Professor of psychology at the University of Toronto and Brooks and Suzanne Ragen Professor Emeritus at Yale. Author of Against Empathy, The Sweet Spot and Psych, and writer of the Small Potatoes newsletter.
Maths educator; writes Mathworlds on how mathematics is taught and why so much of the technology sold to schools does not help.
Computer scientist and director of the MIT Digital Currency Initiative; her research covers distributed systems, databases and digital currency.
For those of you concerned about Claude breaking post-quantum signature schemes... go ask Claude: Quoting @neha @311008DC @w_s_bitcoin @BitcoinNewsCom Anthropic Related
Author of Recoding America; founded Code for America and was US deputy chief technology officer from 2013 to 2014. Writes Eating Policy on why governments cannot do what they decide to do.
American-Polish journalist and historian, staff writer at The Atlantic; author of Gulag, Iron Curtain, Twilight of Democracy and Autocracy, Inc.
Author of the open source projects MessagePack, Fluentd and Embulk, and co-founder and chief architect of Treasure Data.
Writer and developer. He runs the Latent Space newsletter and podcast about AI engineering, and writes essays on software and careers at swyx.io.
From one piece
What you can do in a decade
3 beliefs, in the piece's order there
Their words
In one year you'll probably mostly be thinking and doing what you think you'll be doing in a year today. In a decade, EVERYTHING can change.
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What you can do in a decade swyx.io
Their words
The only lasting path to satisfaction, happiness, skin in the game, maximizing learning, is to really study everybody's game, define your own, and then play it to the best of your ability.
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What you can do in a decade swyx.io
Their words
the world is run by people no smarter than you - and even people that genuinely mean well, end up only prescribing games that you don't want to win.
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What you can do in a decade swyx.io
Researcher on distributed systems and local-first software at the University of Cambridge; wrote Designing Data-Intensive Applications.
From one piece
Designing Data-intensive Applications with Martin Kleppmann
5 beliefs, in the piece's order there
Their words
You're building higher-level business logic, actually I think it's just fine for people not to care about memory management.
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youtube.com
Their words
And now suddenly people are building databases on top of object stores, for example. And now the replication happens at the object store level, no longer at the database level.
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youtube.com
Their words
generally, like you just want the the cost and the computing capacity to be roughly proportional to the load that you have. And at the low end, that means actually being able to scale down to something that is extremely cheap to run.
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youtube.com
+ 2 more
Their words
Scalability is just like what mechanisms we have for dealing with changes in load. If load increases, how can we add computing capacity to a system, for example, so that the system still continues working?
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youtube.com
Their words
for me, reliability means fault tolerance primarily. So, meaning that a system should, on the whole, continue working even if like a network link is interrupted or a node crashes or something like that.
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youtube.com
Programmer based in Vancouver who writes at scattered-thoughts.net about databases, programming language design and developer tools; author of the Imp, Dida and Zest language experiments.
From one piece
Borrow-checking without type-checking
2 beliefs, in the piece's order there
Software engineer; co-founder and former CTO of Tailscale, previously on the Go team at Google.
From one piece
I am building a cloud
3 beliefs, in the piece's order there
21 April
Member of technical staff at Anthropic. He has led ML/AI teams at Amazon, Alibaba and Lazada, and writes about LLMs, recommender systems and engineering at eugeneyan.com.
Great writeup by @mozilla: Mythos found 271 vulns (fixed in Firefox 150); Opus 4.6 found 22 (fixed in Firefox 148) https://t.co/wzTCxmTKbe > "So far we’ve found no category or complexity of vulnerability that humans can find that this model can’t." > "The defects are finite, and we are entering a world where we can finally find them all." ❤️ Related
Writer and consultant on formal methods and software correctness; author of Practical TLA+ and Logic for Programmers.
Former L8 engineer at Meta, Microsoft and Atlassian, now writing and building solo on agentic engineering. Writes Kun's Field Notes and posts a lot about AI coding agents on X.
Guardian columnist and environmental campaigner; wrote Feral and Regenesis, and argues for rewilding and against the food system as it is.
Self-Burn Thanks to Trump, people around the world are scrambling to get out of fossil fuels. By George Monbiot, published in the Guardian 18th April 2026 Donald Trump has done more to accelerate the energy transition than anyone…
energy Related
Co-founder of Sundial; former vice president of product design at Facebook; author of The Making of a Manager; writes The Looking Glass.
Creator of Ruby on Rails, CTO of 37signals, and creator of Omarchy.
Founder of Terraform Industries and formerly a physicist at NASA's Jet Propulsion Laboratory; writes about energy, space and manufacturing.
Australian Dynamism This post has benefited from generous contributions from Austin Vernon, Malcolm Davis, Sam D’Amico, and others who do not necessarily endorse the conclusions of this piece. I will follow Australian spelling conventions…
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Free software developer; maintainer of sway, wlroots, aerc and scdoc, and founder of the SourceHut (sr.ht) software forge.
20 April
Full-stack Laravel developer based in Madison, Wisconsin; maintains open-source Laravel, Livewire and Alpine.js packages and writes at randallwilk.dev.
Software engineer and writer; worked on Mapbox and built Placemark and Simple Statistics, and blogs at macwright.com.
Software engineer, Wikipedia editor and crypto critic; writes Citation Needed and runs Web3 is Going Just Great.
Latvian full-stack WordPress developer and course creator at WPElevator; blogs since 2007 about the open web, electronics, home automation and sustainable living.
Somebody should unleash AI agents on the WP trac backlog, have it track all steering decisions and see where we land. We sure could get a core committer skill out this 😅 Related
Computer scientist and director of the MIT Digital Currency Initiative; her research covers distributed systems, databases and digital currency.
Follow up on Bitcoin and Quantum: A proposed roadmap. https://t.co/QoOrvnxeOe tl;dr: we should work towards activating a PQ-safe output type with PQ signatures now. everything else (including escape hatches, zk proofs, commit/reveal, to freeze or not) can, and should, wait. Related
Author of The Simple Path to Wealth and of the jlcollinsnh.com stock series on index-fund investing.
"Security is mostly a superstition. "It does not exist in nature, nor do the children of men as a whole experience it. "Avoiding danger is no safer in the long run than outright exposure. "Life is either a daring adventure, or nothing." Helen Keller 1880-1968 Related
Wall Street Journal bestselling author on marketing and writing, partner at MarketingProfs, and writer of the fortnightly Total Annarchy newsletter.
Cryptography engineer; maintains Go's cryptography libraries as a full-time open-source maintainer, funded directly by companies that use them.
Canadian full-stack web developer who makes JavaScript and CSS video courses and co-hosts the Syntax podcast.
Machine learning engineer working on recommender systems, personalization and information retrieval. Previously worked on LLMs and LLM infrastructure at Mozilla.ai and on ML and recsys at Duo, Tumblr, Automattic and Comcast; wrote the 'What are embeddings?' text and ran the Normconf conference.
Co-founder of Foundry Group and of Techstars. Has blogged at Feld Thoughts since 2004 and has written or co-written nine non-fiction books on startups and venture capital.
Their words
Eric Ries wrote The Lean Startup in 2011 and changed how a generation of founders thought about building companies.
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feld.com
Their words
The Lean Startup helps you build a valuable company. Incorruptible is about how and why to protect it, keeping a company mission-driven over the long term instead of letting it rot from the inside.
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feld.com
19 April
Writes on effective altruism, energy and the arithmetic behind arguments people repeat — including how much electricity a chatbot query actually uses.
Programmer and streamer; was an engineer at Netflix, now teaches and argues about editors, Vim and how people learn to program.
Cardiologist and founder of the Scripps Research Translational Institute; writes Ground Truths on biomedical research, and wrote Super Agers and Deep Medicine.
Sociologist at Duke University writing on markets, exchange and moral order, and on plain-text and data-visualisation tools for social science.
Founder of the International Center for Clinical Excellence and originator of Feedback-Informed Treatment. Writes about what actually makes a therapist effective, usually against the field's own assumptions about training and experience.
Co-founder of Modem and a founding engineer at Sentry, where he went on to be VP of Engineering. Co-author of Third-party JavaScript, and co-host of the State of Agentic Coding podcast with Armin Ronacher.
Canadian bootstrapper and writer on small software businesses. Co-founder of the podcast hosting company Transistor.fm and author of the book Marketing for Developers.
Founder of WP Engine and Smart Bear; writes A Smart Bear, long essays on strategy, pricing and how startups actually fail.
Free software developer; maintainer of sway, wlroots, aerc and scdoc, and founder of the SourceHut (sr.ht) software forge.
Rewrote my blog with Zine 15 years ago, on December 11th, 2010, at the bold age of 17, I wrote my first blog post on the wonders of the Windows Phone 7 on Blogspot. I started blogging as a kid at the behest of a family friend at Microsoft, who p…
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18 April
Mac and iOS developer; created NetNewsWire and MarsEdit, co-created the JSON Feed format, and blogs at inessential.com.
Software engineer who worked on Chrome and Polymer at Google, and writes about the web, emoji and Elm at meowni.ca.
Co-founder of Modem and a founding engineer at Sentry, where he went on to be VP of Engineering. Co-author of Third-party JavaScript, and co-host of the State of Agentic Coding podcast with Armin Ronacher.
AI research engineer working on large language models. He writes the Ahead of AI newsletter and is the author of Build a Large Language Model (From Scratch).
Writes Nintil, long researched essays on metascience, biology, economics and whatever he has decided to read the literature on.
17 April
Release engineering manager at the Wikimedia Foundation. Keeps a public log at tylercipriani.com of every book he reads, with a rating and notes.
Today's bash adventure, I never reach echo in this script: set -e (( X++ )) echo "X=$X" Why? Because (( X++ )) returns 0. And returning 0 from (( is a NON-zero exit code—an error. Because of course, how silly of me. Related
Cryptographer; teaches cryptography at Johns Hopkins and writes A Few Thoughts on Cryptographic Engineering.
Novelist and critic, author of The Body Scout and Metallic Realms; writes the newsletter Counter Craft on fiction craft and the publishing industry.
Author of The Simple Path to Wealth and of the jlcollinsnh.com stock series on index-fund investing.
Some very cool news to share: Hh is releasing the paperback edition of Pathfinders! ~100 Extraordinary Stories of people like you on the Quest for Financial Independence and how to join them. lnk.to
Quoting @harrimanhouse Pathfinders, the follow-up to JL Collins' bestselling personal finance sensation The Simple Path to Wealth, will be available in US paperback format this June! Pathfinders brings together scores of amazing and insightful real-life stories from real people on the journey to financial independence –… Related
Emeritus Professor of Statistics at the University of Cambridge, former president of the Royal Statistical Society, and author of The Art of Statistics.
Delighted to see the Covid Inquiry used one of our Winton Centre graphics in their vaccine report (p 215). But they chose the 'medium' exposure (February), rather than the more relevant 'low' exposure (March). I think this is misleading. Related
Writer, photographer and software maker based in Japan; publishes long-form essays, walking newsletters and self-made books at craigmod.com.
Co-founder of Superlogical, started in 2026 to build server-side terminal infrastructure; creator of Ghostty. Co-founded HashiCorp and created Vagrant and Terraform before that.
Software engineer who worked on Chrome and Polymer at Google, and writes about the web, emoji and Elm at meowni.ca.
Economics professor at George Mason University and author of The Myth of the Rational Voter, Selfish Reasons to Have More Kids, The Case Against Education and Open Borders. Writes Bet On It.
Their words
In all honesty, I think that these are the best eight pages of economics I’ve ever read.
Show the whole quote
betonit.ai
16 April
Social scientist at King's College London; writes The Great Gender Divergence on why societies differ in how they treat women.
Ruby and Rails core committer known online as "tenderlove"; maintains Nokogiri and works on Ruby performance.
Software engineer in Chicago; writes the cassidoo.co blog and a weekly developer newsletter.
Software engineer, Wikipedia editor and crypto critic; writes Citation Needed and runs Web3 is Going Just Great.
Pen name of the Canadian-American writer behind mrmoneymustache.com, a blog on frugality, early retirement and index-fund investing that has run since 2011.
x.com New blog post out today! The Shockingly Simple Math Behind Social Security Link to full article in the comments below Related
Blog The Shockingly Simple Math Behind Social Security In the world of very early retirement, we tend to ignore one of the most important things for normal retirees: the Social Security program. Don’t get me wrong, it’s a great thing for the 73 million people who currently…
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Founder of Terraform Industries and formerly a physicist at NASA's Jet Propulsion Laboratory; writes about energy, space and manufacturing.
Co-founder of Modem and a founding engineer at Sentry, where he went on to be VP of Engineering. Co-author of Third-party JavaScript, and co-host of the State of Agentic Coding podcast with Armin Ronacher.
Software engineer who writes the blog Made of Bugs about performance, debugging and understanding computer systems. Previously worked at Anthropic on interpretability, at Stripe on Sorbet, and at Ksplice.
Mathematician and maker of the 3Blue1Brown YouTube channel, which explains mathematics through animation. Creator of the open-source Manim animation library and founder of the Summer of Math Exposition.
Short Covering 10 points, a surprisingly tricky puzzle. Related
Freelance climate and energy analyst in Oslo, writing on Europe, the US and Australia; worked in the Australian renewables industry before that.
Programmer; wrote Redis and hping, and blogs about C, systems programming and working alone.
AI cybersecurity is not proof of work The proof of work is the wrong analogy: finding hash collisions, while exponentially harder with N, is guaranteed to find, with enough work, some S so that H(S) satisfies N, so an asymmetry of resources used will see th…
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Indian value investor who taught Behavioural Finance and Business Valuation as an adjunct professor at MDI Gurgaon. He writes the Fundoo Professor blog about investing, moats and mental models.
Proud to see an ex-student’s photo on the cover page of ET. For the right reasons. 😊 @jaycee77 Related
Founder of the Silicon Valley Product Group; wrote Inspired, Empowered and Transformed on how product organisations work.
From one piece
Build to Learn vs Build to Earn
2 beliefs · svpg.com
15 April
Irish independent game developer, maker of VVVVVV, Super Hexagon and Dicey Dungeons.
Semiconductor analyst; writes Fabricated Knowledge on the chip industry and the companies in it.
Co-founder of Panic, the Portland software company behind Transmit, Coda, Nova and the Playdate handheld console.
help there is too much to learn about and it is all rather interesting Related
Bootstrapper and investor. Founder of TinySeed and MicroConf, host of the Startups for the Rest of Us podcast, and author of several books on self-funded software startups.
What an amazing couple days at #MicroConf 2026. Here’s a video recapping some of the highlights 👇 Quoting @MicroConf That's a wrap on #MicroConf US 2026 in Portland! Couldn't make it? Here's everything you missed: Related
Writer and consultant on formal methods and software correctness; author of Practical TLA+ and Logic for Programmers.
Creator of Ruby on Rails, CTO of 37signals, and creator of Omarchy.
The malleable computer Open source promised that users would be free to change whatever code they were running. The reality, however, is that hardly any of them ever did — it was simply too hard. Now, with AI, it suddenly isn't. This is very…
open source Related
Maths educator; writes Mathworlds on how mathematics is taught and why so much of the technology sold to schools does not help.
Economist at George Mason University, co-author of Marginal Revolution, host of Conversations with Tyler. Writes in short, dense claims about economics, culture and AI, and has moved position on AI in public more than once.
Software engineer and educator; creator of Testing Library and of the EpicWeb.dev and EpicReact.dev courses.
Founder of the toy manufacturer Viahart; writes about manufacturing, importing and why bringing production back to America is harder than it sounds.
Brainwashing for Confidence My mom brainwashed me to be confident. She told me over and over that I was great and destined for great things. And it worked. To this day, when I lose or make a mistake, I get mad, but I always wind up where my mother…
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Product designer and entrepreneur; author of Mobile First and Web Form Design; formerly a product director at Google; now building AI products.
Co-founder of NVIDIA and, as of 2026, its chief executive; the company designs the GPUs most large AI models are trained on.
From one piece
Jensen Huang – Will Nvidia’s moat persist?
5 beliefs, in the piece's order there
+ 2 more
Freelance research analyst and writer of the blog Aceso Under Glass, known for 'epistemic spot checks' of non-fiction claims.
From one piece
Church Planting: Lessons from the Comments
2 beliefs, in the piece's order there
Co-founder of Superlogical, started in 2026 to build server-side terminal infrastructure; creator of Ghostty. Co-founded HashiCorp and created Vagrant and Terraform before that.
14 April
Bootstrapper and investor. Founder of TinySeed and MicroConf, host of the Startups for the Rest of Us podcast, and author of several books on self-funded software startups.
.@TheCraigHewitt takes the stage to close out #MicroConf 2026 talking about how to run a SaaS in a post-software / agentic world. SaaS Related
Writes Very Serious, a newsletter on politics, the economy and culture, and hosts the podcast of the same name.
Experimental psychologist and author of the blog Experimental History, on psychology, science reform and creativity.
Technologist and entrepreneur; former CTO of Threadless and chief technology officer of the 2012 Obama re-election campaign.
Its fun to work with Clint. We used to use graphviz dot files to power our software factory Clint went hunting a missing backslash in a DOT pipeline and came back with an entire language. Dippin replaces DOT for authoring AI pipelines Related
Irish independent game developer, maker of VVVVVV, Super Hexagon and Dicey Dungeons.
one of my favorite games from the last few years Quoting @hairyheartstudio.bsky.social Anthology of the Killer is OUT NOW on PS5 and Nintendo Switch! The groundbreaking and dreamlike, IGF Nuovo-winning horror-comedy series from legendary auteur thecatamites, is finally on console! Play once and remember forever. Related
Freelance climate and energy analyst in Oslo, writing on Europe, the US and Australia; worked in the Australian renewables industry before that.
Swedish essayist who writes Escaping Flatland, a newsletter of essays on relationships, thinking, writing and homeschooling.
Indian value investor who taught Behavioural Finance and Business Valuation as an adjunct professor at MDI Gurgaon. He writes the Fundoo Professor blog about investing, moats and mental models.
https://t.co/JGsnEXIi3l Looking forward to doing this again. New cases. Expanded course. Bigger venue. @FLAMEUniversity Related
Software engineer in Chicago; writes the cassidoo.co blog and a weekly developer newsletter.
Co-founder of Sundial; former vice president of product design at Facebook; author of The Making of a Manager; writes The Looking Glass.
From one piece
How to Spot a World-Class Designer
2 beliefs · lg.substack.com
Software architect and futurist; founded ClariNet, chaired the EFF, and has written about robocars for two decades.
self-driving cars
Their words
Self-driving cars seem to be just more cars, and people who dislike cars don't love that. But the electric robotaxi offers much more potential
Show the whole quote
ideas.4brad.com
Statistician and software engineer who writes R packages for reproducible research and publishing, including knitr, bookdown and blogdown.
R.I.P., Tomas Kalibera Update on 2026/04/20 Here is a tribute written by Professor Jan Vitek, which included much richer information about Tomas: https://prl-prg.github.io/tomas-kalibera.html I hate writing yet another RIP post, but the other…
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Forecaster, founder of FiveThirtyEight, author of The Signal and the Noise and On the Edge. Writes Silver Bulletin, where the predictions come with numbers and the numbers are later checked against what happened.
Their words
Yesterday, I spoke with Mike Solana of the excellent newsletter Pirate Wires, one of the best places anywhere to find some truly heterodox takes about the relationship between tech and politics.
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natesilver.net
13 April
Bootstrapper and investor. Founder of TinySeed and MicroConf, host of the Startups for the Rest of Us podcast, and author of several books on self-funded software startups.
.@einarvollset takes the stage to talk about how to know the right time to sell your SaaS at #MicroConf US, 2026. SaaS Related
Canadian full-stack web developer who makes JavaScript and CSS video courses and co-hosts the Syntax podcast.
Austrian developer. Created the libGDX game framework, and more recently the pi coding agent, which moved with them to Earendil — Armin Ronacher's company — in April 2026. Writes at mariozechner.at.
Software developer and entrepreneur; co-founder of Heroku, author of The Twelve-Factor App, and a researcher at Ink & Switch.
The role local-first can play in the software industry: encourage us all to think longer-term. Quoting @localfirstconf "Am I empowering my users to take their data and go to where they need to go when the time comes for that?" @_adamwiggins_ Related
Demographer; writes on fertility, marriage and population, and directs the Pro-Family Initiative at the Institute for Family Studies.
Machine-learning researcher at Cursor working on post-training for coding models; a professor at Harvard and then Cornell from 2016 to 2026, and a researcher at Hugging Face from 2019 to 2024.
Author of Recoding America; founded Code for America and was US deputy chief technology officer from 2013 to 2014. Writes Eating Policy on why governments cannot do what they decide to do.
Data scientist at Our World in Data and author of Not the End of the World. Writes By the Numbers, working through energy and climate questions with the numbers in front of them, and revising in public when they say something unexpected.
Machine learning engineer and consultant focused on RAG and retrieval systems. He writes about applied AI engineering at jxnl.co and is the author of the instructor library.
Polyglot who speaks twenty languages and co-founded LingQ; argues that comprehensible input, not study, is what does the work.
From one piece
What Is Second Language Acquisition?
3 beliefs, in the piece's order there
Writer and former Substack product manager; publishes essays and interviews on technology, culture and China at jasmi.news.
From one piece
🌻 AI populism's warning shots
3 beliefs, in the piece's order there
Their words
That's why I don't think accelerationist steamrolling will work. The only way this conflict resolves peacefully is some kind of grand bargain: a flagship policy plan that directly addresses the public's top fears about AI and meaningfully redistributes the gains.
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🌻 AI populism's warning shots jasmi.news
AGI
Their words
Backlash is also the inevitable consequence of AGI-pilling the nation.
Show the whole quote
🌻 AI populism's warning shots jasmi.news
Their words
From now until forever, most people regulating, protesting, and talking about AI will not be interested in AI per se, but rather how it impacts their preexisting belief systems and political agendas.
Show the whole quote
🌻 AI populism's warning shots jasmi.news
Professor of Cognitive and Computational Neuroscience at the University of Sussex, co-director of the Sussex Centre for Consciousness Science, and author of Being You: A New Science of Consciousness.
From one piece
Integrated information theory: the good, the bad and the misunderstood (with 6 co-authors)
3 beliefs, in the piece's order there
Their words
Fifth, for IIT to fit with current successful theories in fundamental physics, a reformulation in terms of continuous fields would be needed.
Show the whole quote
arxiv.org
Their words
Fourth, so far only proxies for IIT measures have been computed, and not approximations.
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arxiv.org
Their words
Second, we describe with nuance the distinct flavour of panpsychism implied by IIT - whereby space (and time) are tiled with substrates of (proto-) consciousness - and find this is not problematic for the theory.
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arxiv.org
Machine learning engineer working on recommender systems, personalization and information retrieval. Previously worked on LLMs and LLM infrastructure at Mozilla.ai and on ML and recsys at Duo, Tumblr, Automattic and Comcast; wrote the 'What are embeddings?' text and ran the Normconf conference.
Mechanical sympathy Weaver, seen from the Front, Vincent van Gogh, 1884 Something that’s been floating around in my head lately is the idea that I don’t know any truly good engineers who are also not good at at product design.…
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Design engineer and illustrator; makes visual essays on programming, anthropology and what language models do to the way people write.
12 April
Machine learning engineer and consultant focused on RAG and retrieval systems. He writes about applied AI engineering at jxnl.co and is the author of the instructor library.
Genomics researcher and investor; writes The Century of Biology on where biotechnology is actually going.
Writes on effective altruism, energy and the arithmetic behind arguments people repeat — including how much electricity a chatbot query actually uses.
Engineering leader and writer; wrote An Elegant Puzzle, Staff Engineer and The Engineering Executive's Primer, and blogs at Irrational Exuberance.
Agents as scaffolding for recurring tasks. One of my gifts/curses is an endless fixation with how processes can be optimized. For a brief moment early in my career, that was focused on improving how humans collaborate, but that quickly switched to figuring out h…
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Genomics researcher and writer on science, biotech and the culture of research.
Founder of the International Center for Clinical Excellence and originator of Feedback-Informed Treatment. Writes about what actually makes a therapist effective, usually against the field's own assumptions about training and experience.
11 April
Ruby and Rails core committer known online as "tenderlove"; maintains Nokogiri and works on Ruby performance.
Machine learning engineer and independent AI consultant. He writes about LLM evaluation, tooling and applied ML at hamel.dev, and previously worked on machine learning at GitHub.
American open-source program lead working on WordPress; a WordPress core contributor and release lead who writes at jeffpaul.com.
This update expands editorial workflows with new experiments for Content Classification and SEO-friendly Meta Description generation, adds bulk Alt Text generation in the Media Library, and improves extensibility and reliability across the plugin. https://make.wordpress.org/ai/2026/04/10/whats-new-in-ai-0-7-0/ #WordPress #AI #OpenSource Related
Systems and developer-tools engineer at Cloudflare as of 2026, on durable infrastructure for AI agents; worked on React and PartyKit before that. Writes at sunilpai.dev.
FreeBSD developer and former FreeBSD Security Officer; founder of the Tarsnap online backup service and author of the scrypt key derivation function.
From one piece
20 Years on AWS and Never Not My Job
3 beliefs, in the piece's order there
Economist specialising in global income inequality; formerly lead economist in the World Bank research department, now at the CUNY Graduate Center and author of the Global Inequality and More newsletter.
Their words
I am quoting Raymond Aron, who wrote a very important book published in the 1960s called Peace and War
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branko2f7.substack.com
10 April
Founding member of OpenAI and former director of AI at Tesla; creator of nanoGPT and the term "vibe coding".
Co-founder and CEO of OpenAI; previously president of Y Combinator.
- Here is a photo of my family. I love them more than anything. Images have power, I hope. Normally we try to be pretty private, but in this case I am sharing a photo in the hopes that it might dissuade the next person fr…
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Polyglot who speaks twenty languages and co-founded LingQ; argues that comprehensible input, not study, is what does the work.
Demographer; writes on fertility, marriage and population, and directs the Pro-Family Initiative at the Institute for Family Studies.
AI research engineer working on large language models. He writes the Ahead of AI newsletter and is the author of Build a Large Language Model (From Scratch).
Cyborg anthropologist and UX designer; author of Calm Technology and co-founder of the geolocation startup Geoloqi.
It was a great honor to speak at @AXIS_Tokyo and provide a workshop on #CalmTech. Thank you to everyone for a meaningful experience. Quoting @nobi 3月4日に AXIS Gallery @AXIS_Tokyo で行われた Amber Case @caseorganic を招いての #CalmTech イベントレポートが @mui_labo のページに掲載されていました： https://t.co/tLO4IkEkVg 3月末には掲載されていたようですが今頃気がつきました💦 Related
Programmer and writer; specified JSON, wrote JavaScript: The Good Parts, JSLint and How JavaScript Works.
Ruby and Rails core committer known online as "tenderlove"; maintains Nokogiri and works on Ruby performance.
Co-founder of Modem and a founding engineer at Sentry, where he went on to be VP of Engineering. Co-author of Third-party JavaScript, and co-host of the State of Agentic Coding podcast with Armin Ronacher.
State of Agentic Coding #5 with @mitsuhiko.at is live. In this episode: - death of the IDE premature? - what's with all the bugs - will future models fix yesterday's AI code? - token abuse, slowing down, and more! YT: www.youtube.com/watch?v=qCpY... Spotify: open.spotify.com
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Managing partner at Ritholtz Wealth Management. Writes the blog The Irrelevant Investor and co-hosts the Animal Spirits podcast with Ben Carlson.
Software is crashing again today. The two-day move from Wed-Thursday was a complete outlier. We've never seen the S&P 500 up that much with software down that much. Related
Co-founder of Modem and a founding engineer at Sentry, where he went on to be VP of Engineering. Co-author of Third-party JavaScript, and co-host of the State of Agentic Coding podcast with Armin Ronacher.
Social scientist at King's College London; writes The Great Gender Divergence on why societies differ in how they treat women.
Web infrastructure engineer and standards editor; chaired the IETF HTTP working group and co-authored core HTTP and Atom specifications.
In the last few weeks, Trump has done more for the worldwide adoption of electric vehicles than any previous US president. Congratulations. Related
In 2026, kids skating in public spaces isn’t annoying - it’s FUCKING WHOLESOME, carrying on a 40+ year legacy, and certainly should not be considered any kind of crime. Related
9 April
Economist specialising in global income inequality; formerly lead economist in the World Bank research department, now at the CUNY Graduate Center and author of the Global Inequality and More newsletter.
Founder of the Silicon Valley Product Group; wrote Inspired, Empowered and Transformed on how product organisations work.
Writer and author of All the Wrong Moves; his newsletter covers meditation, relationships and creativity, and he co-runs a perfume line.
Hosts the Lex Fridman Podcast — long, unhurried conversations with scientists, engineers and public figures. Several of the interviews quoted elsewhere on this site are episodes of it.
x.com Here's my conversation with historian Lars Brownworth all about the Vikings, from the start of the Vikings Age to the conquest of Europe and beyond. This was an epic & mind-blowing conversation. It's here on X in full and is up everywhere else (see comment). Timestamps: 0:00 - Episode highlight 1:17 - Introduction 2:37 - The start of the Viking Age 12:30 - Viking military strategy, tactics & technology 26:13 - Ragnar Lothbrok 35:40 - The Great Heathen Army 40:23 - Rollo and Normandy 50:34 - Viking religion and Valhalla 1:01:06 - Viking explorers 1:06:13 - Vikings in North America 1:19:35 - Vi… Europe America Related
Podcast #495 – Vikings, Ragnar, Berserkers, Valhalla & the Warriors of the Viking Age Related
Demographer; writes on fertility, marriage and population, and directs the Pro-Family Initiative at the Institute for Family Studies.
Engineer who worked on the Linux kernel and helped launch Android at Google; author of Linux Kernel Development and Linux System Programming.
The article also cites a shared interest in libertarian politics and PGP as if that doesn't describe everyone on the Internet in the 90s The linguistic analysis is interesting but you can't use it to single out one individual Quoting @robertgraham Hi. Professional C/C++ programmer here. The open-source code I can find written by Adam Back and Satoshi Nakamoto don't look remotely similar. Back's code looks typical of academic Unix programmers who also hack their code to run on Windows. Satoshi code was written by a professional Windows progra… Related
Author of Recoding America; founded Code for America and was US deputy chief technology officer from 2013 to 2014. Writes Eating Policy on why governments cannot do what they decide to do.
Founding member of OpenAI and former director of AI at Tesla; creator of nanoGPT and the term "vibe coding".
Their words
TLDR the people in these two groups are speaking past each other.
Show the whole quote
@karpathy on X x.com
Pseudonymous writer; posts careful, funny investigations of everyday questions — air quality, seed oils, arguing, chess — usually by reading the studies.
Science fiction novelist, journalist and technology activist; writes the daily blog and newsletter Pluralistic, and coined the term enshittification.
Their words
This book is a beautiful capstone to a brilliant career that defined the fight for cyber rights, and a deep, accessible dive into the defining tech and human rights battles of this century.
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pluralistic.net
Founding member of OpenAI and former director of AI at Tesla; creator of nanoGPT and the term "vibe coding".
Their words
these free and old/deprecated models don't reflect the capability in the latest round of state of the art agentic models of this year, especially OpenAI Codex and Claude Code.
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x.com
Their words
these free and old/deprecated models don't reflect the capability in the latest round of state of the art agentic models of this year, especially OpenAI Codex and Claude Code.
Show the whole quote
x.com
8 April
Irish independent game developer, maker of VVVVVV, Super Hexagon and Dicey Dungeons.
it's so true Quoting @hollygramazio.bsky.social gelatoooo Related
Front-end developer and writer on Svelte, Vue, CSS and WordPress; blogs at joshcollinsworth.com.
Professor of psychology at the University of Toronto and Brooks and Suzanne Ragen Professor Emeritus at Yale. Author of Against Empathy, The Sweet Spot and Psych, and writer of the Small Potatoes newsletter.
Guardian columnist and environmental campaigner; wrote Feral and Regenesis, and argues for rewilding and against the food system as it is.
Writes Hyperdimensional, a newsletter on AI policy and governance. A White House AI policy adviser in 2025; joined OpenAI on 6 July 2026 to lead its Strategic Futures team.
Investigative journalist on policing, forensics and criminal justice; wrote Rise of the Warrior Cop and writes The Watch.
Novelist and critic, author of The Body Scout and Metallic Realms; writes the newsletter Counter Craft on fiction craft and the publishing industry.
Software developer and entrepreneur; co-founder of Heroku, author of The Twelve-Factor App, and a researcher at Ink & Switch.
“Good protocol design requires balancing the tensions of ideology and practicality.” Fantastic read on federation, p2p, and software people actually want to use: pfrazee.com
Related
Austrian developer. Created the libGDX game framework, and more recently the pi coding agent, which moved with them to Earendil — Armin Ronacher's company — in April 2026. Writes at mariozechner.at.
Web infrastructure engineer and standards editor; chaired the IETF HTTP working group and co-authored core HTTP and Atom specifications.
Guidelines for aspiring Nobel Prize winners: 1. Do not threaten other countries with wholesale destruction and possible genocide. Related
Creator of Ruby on Rails, CTO of 37signals, and creator of Omarchy.
Their words, before
I know this from experience because I've been trying to build a lot of other businesses since. And some of them have been moderate successes, even good successes, none of them have been Basecamp. It's really difficult to do that twice.
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Their words now
And I have no shame in saying that Base Camp was the best idea objectively in terms of a business that we've ever had.
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Linux
Their words, before
But I have come to realize that as a web developer, Linux is just better. Linux is just better. It's closer to what I deploy on. The tooling is actually phenomenal.
Show the whole quote
Their words now
anyone who's working with the web, who's working with Ruby, who's doing DevOps, they should be on Linux because first of all, that's closer to what we deploy.
Show the whole quote
Their words, before
Mojito Island is a mirage. It always was. There is no retirement for ambitious people. There is no just sitting back on the beach and sipping a mojito for what? For two weeks before you go damn crazy and wanna get back into the action?
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Their words now
I think that's the other big misconception that some people have about wealth is that they conceive of it as some sort of checkpoint. Like once you've made it, then you can just kick back in leisure as though that was happiness.
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+ 2 more
Their words, before
It may no longer have as much economic value as it once did. I think that I'm quite convinced is true that we perhaps have seen the peak.
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Their words now
So, I do think it is correct for the average programmer to think maybe we've seen the best of the golden days.
Show the whole quote
Their words, before
The joy of a programmer, of me as a programmer, is to type the code myself. If I elevate myself, if I promote myself out of programming, I turn myself into a project manager. A project manager of a murder of AI crows as I wrote the other day.
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Their words now
I have been hyper accelerated as a programmer. It's a different kind of programmer, but it still has the same affinity to aesthetics, at least when I'm producing Ruby code.
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Austrian developer. Created the libGDX game framework, and more recently the pi coding agent, which moved with them to Earendil — Armin Ronacher's company — in April 2026. Writes at mariozechner.at.
7 April
AI research engineer working on large language models. He writes the Ahead of AI newsletter and is the author of Build a Large Language Model (From Scratch).
Swiss full-stack developer working mostly with Laravel and Vue; author of the widely used git-auto-commit-action GitHub Action.
Wrote down how I recently tried to add a "remaining characters count" to a Filament PHP text input. stefanzweifel.dev
Related
Technologist and entrepreneur; former CTO of Threadless and chief technology officer of the 2012 Obama re-election campaign.
Headless non-interactive code agent working with local models to build a new fully functional coding agent Related
Author of the open source projects MessagePack, Fluentd and Embulk, and co-founder and chief architect of Treasure Data.
Hosts the Lex Fridman Podcast — long, unhurried conversations with scientists, engineers and public figures. Several of the interviews quoted elsewhere on this site are episodes of it.
This life is fucking amazing. I'm so grateful to be alive, with all of you on this miracle of a planet. Oh and I'm sorry if I fuck things up sometimes. I'm a flawed human. But I promise to do whatever I can to try to add some more understanding and love to this world. After the world leader convos I get attacked intensely by all sides, and many disparate online communities. It has led to some really low points for me mentally. But I don't matter. I'm listening. I'll do better. And I'll try to find the strength to do more of them, always with rigor and backbone, seeking to truly understand. An… Related
Scientist and writer on quantum computing, memory systems and metascience; co-wrote the standard quantum computation textbook and wrote Reinventing Discovery.
From one piece
Michael Nielsen – Why aliens will have a different tech stack than us
5 beliefs, in the piece's order there
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and in some sense Darwin's genius wasn't in having that idea. It was understanding just how central it was uh to to to biology.
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the point is that where we always get bottlenecked is where the the previous processes and and and heuristics don't apply. Right? Like that's almost sort of definitionally what causes the bottlenecks.
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And like, this idea that people have that that that Newton was um sort of the the first modern scientist is is somehow wrong. He I mean, it's there's some truth to it, but he really had this very different way um of of looking at the world that was part sort of superstitious um and part modern. It was a funny hybrid.
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And so, you have what seem like three very different disconnected phenomena all being explained by this one set of ideas.
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his expertise seems to be getting in the way. He knows so much, he understands so much, um and then he's not able to let go of these these things.
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Software design writer and chief scientist at Thoughtworks; wrote Refactoring and Patterns of Enterprise Application Architecture.
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Martin Fowler & Kent Beck: Frameworks for reinventing software, again and again
5 beliefs, in the piece's order there
Their words
Um I think another similarity is I mean, the core notions uh behind Agile and extreme programming are solid and good, but a huge snake oil industry appeared around it, the Agile industrial complex as I like to refer to it. Um and that will happen. That is happening with AI right now, and it's often hard to see the difference between where is the snake oil and where is the real stuff.
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one of the things that I took from that was to use this tool well, you have to learn how to use it well, which was also something very true of object orientation.
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My skepticism has to be absolute and total, which means I have to be skeptical about my skepticism. And that requires that curiosity.
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but the thing about AI is that, you know, all of many of these things we were talking about how important they were and how valuable were and trying to persuade people of the importance of them. Yes, even the internet. That may sound surprising, but there were people who would weren't thinking that was important. Um but AI, there's kind of no argument about how important it is. People can't can I mean, you cannot put blinkers on to deny the importance of this thing.
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Well, nothing has hit with the magnitude of AI. That's I mean, this is a a whole size difference from anything that we've faced before.
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Product designer and entrepreneur; author of Mobile First and Web Form Design; formerly a product director at Google; now building AI products.
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Should Designers "Code"?
2 beliefs · lukew.com
Programmer; wrote Extreme Programming Explained and Test-Driven Development, signed the Agile Manifesto, and writes Tidy First?.
From one piece
Martin Fowler & Kent Beck: Frameworks for reinventing software, again and again
5 beliefs, in the piece's order there
AI and jobs
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Yeah, AI is an amplifier. And if uh if you're young and learning quickly, AI is going to amplify that or can amplify that. So, I I personally think this is this is the golden age of the junior programmer.
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That's a You know, people want the answer, and the answer is changing. So, you can't possibly in this environment have the answer. Now, that's the bad news. The good news is nobody else has the answer either. So, you're just as smart as everybody else because you're just as ignorant as everybody else.
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Yeah, what what's the smallest experiment I can run to verify to my own satisfaction and everybody's level of satisfaction is going to be different whether or not this claim is true. That's That's the skill that is suddenly in the last year become a thousand times more valuable is that skill of saying, "What's the least I can do to validate for my to my own satisfaction whether this claim is true?
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So, as seniors, I figure it behooves us to demonstrate not just how to use these tools effectively, but how to figure out how to use these tools effectively, cuz that's a whole different set of skills.
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And one of the things I noticed is for 25 years we've kind of had the answers. Somebody comes to us and says we have too many bugs or like, all right, well, here's how you write tests. Oh, I can't write tests. Well, here's how you design so you can write tests. It's just kind of press play uh on the recorder. And the thing that's changed is at this moment nobody knows the answers to anything.
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Programmer based in Vancouver who writes at scattered-thoughts.net about databases, programming language design and developer tools; author of the Imp, Dida and Zest language experiments.
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0058: borrow-checking surprises, books, links
3 beliefs, in the piece's order there
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Libertarians always want to let industries regulate themselves, arguing that if they do harmful things then the market will respond. But the market will only notice immediate, severe harm.
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0058: borrow-checking surprises, books, links scattered-thoughts.net
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There's strong epidemiological evidence associating ultra-processed foods with a range of negative health outcomes, at least on par with the evidence we had for smoking.
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0058: borrow-checking surprises, books, links scattered-thoughts.net
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I expect AI to increase productivity of top mathematicians much more than that of top writers, because formalization is a kind of translation task, it doesn't require much judgement, and as long as it compiles noone needs to read the result.
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Software engineer who writes about low-level and systems programming at nullprogram.com; author of the Elfeed feed reader, the Endlessh SSH tarpit and Enchive.
From one piece
dcmake: a new CMake debugger UI
2 beliefs, in the piece's order there
Co-founder of Superlogical, started in 2026 to build server-side terminal infrastructure; creator of Ghostty. Co-founded HashiCorp and created Vagrant and Terraform before that.
Programmer based in Vancouver who writes at scattered-thoughts.net about databases, programming language design and developer tools; author of the Imp, Dida and Zest language experiments.
Author of Quiet: The Power of Introverts and of Bittersweet; writes The Quiet Life newsletter.
Their words
This book is so full of wisdom and insight. I pulled down my copy just now and it's filled with underlines and margin notes.
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susancain.substack.com
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I discovered Campbell's work during that great transitional period of my life (in my early 30s, when I left the wrong career and the wrong relationship, and set sail into the unknown) and it has been a mainstay ever since.
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This is one of the most extraordinary memoirs I've ever read.
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Founded Bridgewater Associates in 1975 and led it until stepping back from control in 2022. Author of Principles, The Changing World Order and How Countries Go Broke; publishes economic analysis at economicprinciples.org.
Their words
Many of the indicators I use to track unfolding events are explained in Principles for Dealing with the Changing World Order. I especially recommend Chapter 6, “The Big Cycle of External Order and Disorder,” and, if you are interested in the unimaginable-in-peacetime investment-related developments that typically happen during wars, I recommend Chapter 7, “Investing in Light of the Big Cycle.”
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6 April
Writer and illustrator, author of Am I There Yet? and Out of the Blue; writes the newsletter Out of the Blue on grief, joy and everyday attention.
Wall Street Journal bestselling author on marketing and writing, partner at MarketingProfs, and writer of the fortnightly Total Annarchy newsletter.
Writer and author of All the Wrong Moves; his newsletter covers meditation, relationships and creativity, and he co-runs a perfume line.
Cryptography engineer; maintains Go's cryptography libraries as a full-time open-source maintainer, funded directly by companies that use them.
Polyglot who speaks twenty languages and co-founded LingQ; argues that comprehensible input, not study, is what does the work.
Author of The Simple Path to Wealth and of the jlcollinsnh.com stock series on index-fund investing.
Nilo has officially launched its Open Beta. 🚀 Nilo is transforming how games and virtual worlds are built and prioritizes the creator's experience above all else. I’m a proud supporter 👉 Try it now: https://t.co/OtxIWqKkcB 👾 Join the Nilo Discord: discord.gg
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Director of strategy at Georgetown's Center for Security and Emerging Technology; an OpenAI board member until November 2023, and writes Rising Tide.
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The term “AGI” is almost useless at this point
2 beliefs, in the piece's order there
Machine learning engineer working on recommender systems, personalization and information retrieval. Previously worked on LLMs and LLM infrastructure at Mozilla.ai and on ML and recsys at Duo, Tumblr, Automattic and Comcast; wrote the 'What are embeddings?' text and ran the Normconf conference.
On Programming Joy and Octocat While GitHub has been busy losing its last nine of availablility, I’ve been thinking about how the internet used to be. Not the internet people talk about from the 90s, but the internet that we used to have even 1…
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Creator of Ruby on Rails, CTO of 37signals, and creator of Omarchy.
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Give the new Dell XPS series, or any of the other laptops shipping with Panther Lake, a try. I think you'll be as impressed as I've been.
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Intel really delivered with Panther Lake.
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world.hey.com
5 April
Egyptian front-end developer and course creator; writes for CSS-Tricks, publishes courses on Udemy and blogs at alialaa.dev.
Machine learning engineer working on recommender systems, personalization and information retrieval. Previously worked on LLMs and LLM infrastructure at Mozilla.ai and on ML and recsys at Duo, Tumblr, Automattic and Comcast; wrote the 'What are embeddings?' text and ran the Normconf conference.
NASA Elements of Engineering Excellence I stumbled across this report from NASA, “Elements of Engineering Excellence”, published in 2012, The inspiration for this paper originated in discussions with the director of MSFC Engineering in 2006 who as…
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4 April
Founding member of OpenAI and former director of AI at Tesla; creator of nanoGPT and the term "vibe coding".
Farzapedia, personal wikipedia of Farza, good example following my Wiki LLM tweet. I really like this approach to personalization in a number of ways, compared to "status quo" of an AI that allegedly gets better the more you use it or something: 1. Explicit. The memory artifact is explicit and navigable (the wiki), you can see exactly what the AI does and does not know and you can inspect and manage this artifact, even if you don't do the direct text writing (the LLM does). The knowledge of you is not implicit and unknown, it's explicit and viewable. 2. Yours. Your data is yours, on your loca… Quoting @FarzaTV This is Farzapedia. I had an LLM take 2,500 entries from my diary, Apple Notes, and some iMessage convos to create a personal Wikipedia for me. It made 400 detailed articles for my friends, my startups, research areas, and even my favorite animes and their impact on me complete with backlinks. But,… LLMs Related
JavaScript programmer; creator of the jQuery library, author of Secrets of the JavaScript Ninja, and long-time engineer at Khan Academy.
Saw a writhing ribbon snake mating ball today - very active with the warm weather! (Don’t watch if you have a snake phobia… it was a lot in person, 😝 🐍) Related
Author and clean-energy analyst who writes on solar cost curves.
AI research engineer working on large language models. He writes the Ahead of AI newsletter and is the author of Build a Large Language Model (From Scratch).
Mac and iOS developer; founder of Red Sweater Software (MarsEdit, FastScripts) and co-host of the Core Intuition podcast.
I'm backing Obama for national parent. Quoting @BarackObama It was inspiring to watch the Artemis II launch yesterday — @NASA’s first crewed mission around the moon since 1972. Our space program has always captured an essential part of what it means to reach beyond what we thought was possible, and I hope the four brave astronauts on this mission will inspi… Related
Austrian developer. Created the libGDX game framework, and more recently the pi coding agent, which moved with them to Earendil — Armin Ronacher's company — in April 2026. Writes at mariozechner.at.
Founding member of OpenAI and former director of AI at Tesla; creator of nanoGPT and the term "vibe coding".
Their words
Something I've been thinking about - I am bullish on people (empowered by AI) increasing the visibility, legibility and accountability of their governments.
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@karpathy on X x.com
3 April
Writes on effective altruism, energy and the arithmetic behind arguments people repeat — including how much electricity a chatbot query actually uses.
American budget-travel writer who publishes as Nomadic Matt. Author of How to Travel the World on $50 a Day; runs nomadicmatt.com, a long-running site of destination guides, packing advice and gear recommendations.
Non-fiction writer, podcaster and occasional TV host. Author of thirteen books including The Ghost Map, Where Good Ideas Come From and Extra Life, host of the PBS series How We Got To Now, and author of the Adjacent Possible newsletter on innovation.
From one piece
The Legible Society
2 beliefs, in the piece's order there
Software entrepreneur who bootstrapped and sold FeedbackPanda and now builds Podscan; writes The Bootstrapped Founder.
From one piece
The Increasing Risk of Building in Public
3 beliefs, in the piece's order there
2 April
Economist specialising in global income inequality; formerly lead economist in the World Bank research department, now at the CUNY Graduate Center and author of the Global Inequality and More newsletter.
Author and clean-energy analyst who writes on solar cost curves.
American senior staff engineer working on developer and user experience and open source; writes at adamdehaven.com.
Have a @nuxt_js project? Use NuxtSeo? Upgrade to latest and check out http://localhost:3000/__nuxt-seo-utils/ 🤯 @harlan_zw is a wizard 🧙🏼 Related
Professor of finance at NYU's Stern School of Business, known for his work on valuation. He publishes his data, spreadsheets and classes free at Damodaran Online and writes the Musings on Markets blog.
Beware the ides of March? That was true in 2026 as the month started with war, with questions about how long and to what end, and ended with war, and the same questions. Oil prices were up, stock prices were down, but the market was remarkably well-behaved. bit.ly
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Neuroscientist and novelist writing on consciousness, artificial intelligence and culture in the newsletter The Intrinsic Perspective.
Writer and author of All the Wrong Moves; his newsletter covers meditation, relationships and creativity, and he co-runs a perfume line.
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