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Hilary Mason
Bluesky
There are smart people working at these companies, and yet they keep launching deeply ill-considered products. It's such an obviously bad idea if you think about it for even a second. I'm fascinated by this.
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19 September
Working on @ampcode. Writing registerspill.thorstenball.com. Once authored interpreterbook.com and compilerbook.com.
Their words
And what we consider a smart model today will be considered very dumb in the future. But a smarter model makes less mistakes, needs fewer turns.
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thorstenball.com
18 September
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.
The people dismissing this as preposterous are telling on themselves as not having thought about superintelligence seriously. I hadn’t considered this particular idea but you should expect, by definition, that something much smarter than you would have ideas you didn’t think of Quoting @firesidealpha OpenAI's Noam Brown says air-gapping the computers may not stop a misaligned AI, because two air-gapped machines can still talk by running a CPU hot and reading the temperature change "But I think the major takeaway from the incident is that people underestimated the AI. And we never want to be in… AI alignment Related
17 September
Co-founder and CTO of Honeycomb; previously an infrastructure engineer at Parse, Facebook and Linden Lab, and co-author of Observability Engineering.
my considered take on abstractions Quoting @norootcause The more powerful the abstraction, the harder it is to debug when it isn’t working as expected. Related
Software design writer and chief scientist at Thoughtworks; wrote Refactoring and Patterns of Enterprise Application Architecture.
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.
Here's my conversation with Andrew Scull, all about psychiatry, its long history from Freud/Jung to today, including asylums, icepick lobotomies, electroshock therapy, antidepressants, antipsychotics, and some horrific treatments that were considered mainstream where doctors injected patients with malaria, induced insulin comas, and pulled out their teeth, all in the name of curing madness. There are a lot of lessons to learn from history here. One of the most important for me is just how incredibly complex the human mind is, and how hard the task is of understanding & treating the nearly inf… Psychotherapy Related
16 September
Co-founder and CEO of OpenAI; previously president of Y Combinator.
the main thing i was excited about launching this week will be next week instead, but imo worth the wait! Quoting @sama big 🚢 this week and then for devday 🚢🚢🚢🚢🚢🚢 Related
15 September
Web developer and writer; an early GitHub employee, author of speaking.io and of widely read essays on startups and product.
Bluesky Added a new runway feature to signed.com to sort which of my portfolio companies are facing cash crunches. (As a side note, always fascinated by startups who run out of cash and haven't talked to their investors about it. That's what they're there for, to help!) startups Related
x.com Added a new runway feature to @signedco to sort which of my portfolio companies are facing cash crunches. (As a side note, always fascinated by startups who run out of cash and haven't talked to their investors about it. That's what they're there for, to help!) startups Related
14 September
Mathematical physicist at UC Riverside. Wrote This Week's Finds in Mathematical Physics and now the Azimuth blog on mathematics, physics and environmental science.
I'm fascinated by the laurel forests of La Gomera, one the Canary Islands. They're full of different species of trees with shiny, waxy leaves. Mosses and lichens grow on the branches, and the ground is covered with a green mantle of dripping ferns and liverworts thriving in the permanent damp. The place has a mysterious, prehistoric air. The lower altitudes of this island are deserts, but the upper parts catch fog, known locally as "horizontal rain" (lluvia horizontal). Near-constant northeasterly trade winds carry moist Atlantic air that condenses into a persistent low cloud layer. This "sea… Related
13 September
Creator of the Keras deep-learning library and the ARC-AGI benchmark.
If there really is a high chance of AI leading to the extinction of humanity within years/decades, then the only rational stance towards safety monitoring and research pacing should be stringent, top-down government involvement and universally ratified international treaties. Similar to what we have been doing for a long time with nuclear energy and nuclear weapons non-proliferation. If that's not what we're doing, then we must infer that the risk isn't being seriously considered by anyone involved. There are only two options that make sense here: 1. The near-term species extinction risk is r… energy government Related
10 September
Deep-learning researcher and Turing Award laureate; founder of the Mila institute.
9 September
Computer science professor who works on fast data processing; co-author of the simdjson parser and a weekly blogger about software performance since 2004.
Politicians, and people, are often deeply irrational. But it is often easier not to talk about it. In fact, it is considered impolite to talk about it. Case in point. In August 1914, British Columbia premier Sir Richard McBride spent $1.15 million of provincial money on two American submarines. That was about twice the yearly budget of the Royal Canadian Navy. Canadian provinces have no military. The man had no business buying weapons, let alone submarines. Let alone incredibly expensive submarines. A German attack on the West Coast was never likely. Germany did have cruisers in the Pacific f… Quoting @TristinHopper I regularly visit the grave of the B.C. premier who panicked at the outset of the First World War and used taxpayer money to buy a pair of random South American submarines. America Related
7 September
Technology writer of Spyglass, a newsletter about technology and media. Previously a reporter at TechCrunch and an investor at GV.
I hadn't considered that Apple could actually be in favor of making the App Store rules *more* onerous. spyglass.org
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4 September
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 and CEO of Every. Writes the Chain of Thought column about working with AI tools and hosts the podcast AI & I.
Astra one-shotted the first draft of its own vibe check for @every 🤯 we learned Astra was launching at 3 am yesterday morning. by 7 am we had a 3,000 word vibe check written. i can't tell you how impressive it is that i woke up to a google doc with a well-written, well formatted article with all of the usual sections, a good headline, and even appropriate screenshots. written in @kplikethebird's i didn't realize Katie hadn't written it herself, she just prompted Astra and it did the rest totally new world! Google Related
1 September
Co-founder of AQR Capital Management; quantitative investor and writer.
Hey, we considered changing it to “AQR Cougar Mellencamp” so it could’ve been worse. Quoting @NunoClara_ @CliffordAsness AQR funds are fantastic and accessible to retail. The only thing that upsets me is the renaming/repurposing of funds. Makes fund performance less transparent. Eg: “On August 19, 2024, AQR Sustainable LS Equity Carbon Aware changed its name to the AQR Trend Total Return” Related
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.
Technical staff at METR, where she works on threat modelling and risk assessment for loss-of-control risks from advanced AI.
Their words
So, we did a classifier sweep specifically looking for agents thinking about or making the decision to alert humans. And across, 1200 transcripts, each of which are extremely long, we only found like a halfozen instances of it ever occurring to any agent to potentially notify humans. Um, and all of them just decide not to do it.
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31 August
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.
Aliens Are Not Crazy Unlikely Astrobiologists have, for decades, defaulted to a conservative burden of proof that leans into two aphorisms coined by Sagan … life … should be considered a “hypothesis of last resort,” largely because “extraordinary cl…
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29 August
Ancient and military historian; writes A Collection of Unmitigated Pedantry, long series checking what history actually says against how popular culture tells it.
27 August
Programmer, musician and author of The Passionate Programmer; organised RubyConf and RailsConf and has worked as a CTO.
I have long argued that software components should be tiny: small enough to understand, change, or throw away. This paper suggests something I hadn’t considered then: The developers can be tiny too. 1,000+ finite-lived agents build a 250K-line compiler. The project persists. The programmers don’t. arxiv.org
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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.
After working closely with publishers (including @penguindrandom & @BloomsburyPub) and a dream team of leading authors, we're launching a Google-wide program bringing trusted sources (starting with books) to @Gemini_Notebook and more: Expert Intelligence. Google Related
FreeBSD developer and former FreeBSD Security Officer; founder of the Tarsnap online backup service and author of the scrypt key derivation function.
26 August
Political scientist writing Drezner's World on international relations, American politics and the marketplace of ideas; author of The Ideas Industry.
25 August
Researcher and science writer. Co-founder and editor at Works in Progress magazine, formerly a researcher at Our World in Data, and author of the Scientific Discovery newsletter on science, global health and medical innovation.
Most people have never heard of siRNA, but it’s going to change the face of medicine. https://t.co/RLP1pxuICA Much drug development today involves developing chemicals to fit into proteins and block them. But this almost never turns out as planned: many drug candidates get broken down in the body, interfere with other proteins and cause toxic side effects, or fail to be absorbed at all. The majority of proteins are considered undruggable, because they lack a pocket for drugs to bind, or they are ‘intrinsically disordered’, without coherent structure. What if, instead of trying to block the pr… worksinprogress.co
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19 August
Writer and teacher on productivity and personal knowledge management. Author of Building a Second Brain and founder of Forte Labs, which runs the course of the same name.
5 August
FreeBSD developer and former FreeBSD Security Officer; founder of the Tarsnap online backup service and author of the scrypt key derivation function.
I wonder if Amazon has ever considered launching a simple storage service. Related
30 July
Front-end developer and writer; co-founder of CodePen, founder of CSS-Tricks, and co-host of the ShopTalk Show podcast.
CodePen 2.0 Noting perhaps my largest personal career accomplishment, which is launching CodePen 2.0. Far more work, believe it or not, than the entire creation of the original CodePen.... chriscoyier.net
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13 July
Founder and editor-in-chief of MacStories, writing about Apple software, iPad workflows and automation since 2009. He co-hosts the AppStories podcast.
1 July
Deep-learning researcher and Turing Award laureate; founder of the Mila institute.
Their words
That’s why we’re launching the Preliminary Report of the Independent International Scientific Panel on AI — an initial evidence-based assessment of the current state of AI science — to help the public and policymakers better understand the unprecedented moment we’re in.
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x.com
8 June
Mathematician at UCLA, working mainly in harmonic analysis and partial differential equations. Writes What's new, a long-running blog on their research, open problems and expository notes.
Alberto Alfarano, François Charton, Yongzheng Jia, Kristin Lauter, Cathy Li, Emily Wenger, are launching a challenge at SAIR on how efficiently neural networks can perform modular arithmetic: Related
Software engineer, Wikipedia editor and crypto critic; writes Citation Needed and runs Web3 is Going Just Great.
28 May
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.
12 May
Writer on happiness, habits and human nature. Author of The Happiness Project, Better Than Before and The Four Tendencies, and host of the Happier with Gretchen Rubin podcast.
8 May
Founder of Terraform Industries and formerly a physicist at NASA's Jet Propulsion Laboratory; writes about energy, space and manufacturing.
10 April
Web infrastructure engineer and standards editor; chaired the IETF HTTP working group and co-authored core HTTP and Atom specifications.
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
1 April
Uber's first Chief Technology Officer, from 2013 to 2020; later CTO of Coupang and of Faire.
29 January
Writer and academic, author of The Cult of Smart and How Elites Ate the Social Justice Movement; writes a daily newsletter on politics, education and culture.
19 January
Programmer, teacher and speaker; long-time Microsoft developer-community figure, host of the Hanselminutes podcast and author of the hanselman.com blog.
Current Status: researching if Snapchat Restores can be considered a business expense Related
30 December 2025
Freelance web developer and instructor. Author of the Dive Into Docker course; writes tutorials on Docker, deployment and development environments at nickjanetakis.com.
Their words
For launching applications, I used Keypirinha in about 2017 and then I switched to Microsoft PowerToys in May 2020.
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nickjanetakis.com
22 December 2025
British senior engineering manager at Netlify, previously a team lead at the BBC; writes about JavaScript testing, chatbots and serverless at marclittlemore.com.
Mastodon This is a great episode of the Louis Theroux podcast with Jimmy Carr. I’m always fascinated by how other people work and hearing Jimmy talking about how he plans his shows and comedy is really interesting. pca.st
Related
Bluesky This is a great episode of the Louis Theroux podcast with Jimmy Carr. I’m always fascinated by how other people work and hearing Jimmy talking about how he plans his shows and comedy is really interesting. pca.st
Related
16 December 2025
Writer and author of All the Wrong Moves; his newsletter covers meditation, relationships and creativity, and he co-runs a perfume line.
Their words
The biggest endorsement I can give this book is that I once considered writing a book like this, but now I consider the job done.
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sashachapin.substack.com
27 November 2025
Computer performance engineer working on datacenter performance at OpenAI, previously Netflix and Sun/Joyent. Author of Systems Performance and BPF Performance Tools, and creator of flame graphs.
31 October 2025
Co-founder of Rockstar Games, lead writer of the Grand Theft Auto and Red Dead Redemption series, and founder of Absurd Ventures since leaving in 2020.
Their words
Luckily, if you want to do what we’re forced to do and also what I want to do, which is make new IP, you need single-player games. You can launch a multiplayer game with new IP. It’s just extremely hard.
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youtube.com
21 October 2025
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.
Solving regex crosswords with Z3 For a while now, I’ve been fascinated by Z3 and by SMT solving more broadly. While on pat leave recently, I was reminded of the existence of regular-expression crossword puzzles, and allowed myself to get nerdsnip…
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30 September 2025
Co-founder and CEO of OpenAI; previously president of Y Combinator.
Sora 2 We are launching a new app called Sora. This is a combination of a new model called Sora 2, and a new product that makes it easy to create, share, and view videos. This feels to many of us like the “ChatGPT for creativi…
OpenAI Related
1 September 2025
Mathematician at UCLA, working mainly in harmonic analysis and partial differential equations. Writes What's new, a long-running blog on their research, open problems and expository notes.
Thomas Bloom and I are launching a crowdsourced project to link up Thomas's erdosproblems.com site with the #OEIS, by systematically calculating the various integer sequences associated with the Erdos problems and crosschecking them against the OEIS database: terrytao.wordpress.com
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31 July 2025
Anthropologist; wrote Genghis Khan and the Making of the Modern World and The Secret History of the Mongol Queens.
China
Their words
Well, they raised the status of merchants very high. This was particularly a problem in the Chinese world. It wasn't so much in the Christian or the Muslim world, but certainly in the Chinese world, where merchants were considered extremely low. And all of a sudden he raises them up above scholars.
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youtube.com
23 June 2025
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
was delightful!
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feld.com
25 October 2024
Co-founder and CEO of Ritholtz Wealth Management. He wrote The Reformed Broker for over a decade, now publishes the Downtown Josh Brown newsletter, and co-hosts The Compound and Friends.
Their words
He has been a confidant of Buffett and Munger, a co-author with Daniel Kahneman, an editor on two revised editions of Ben Graham’s masterpiece The Intelligent Investor, considered to be the best book on investing ever written.
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downtownjoshbrown.com
23 May 2024
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.
Their words
In the early days, the DE1 was considered "unforgiving" by many. I didn't mind, as the DE1's ability to control shot parameters more than made up for its early challenges.
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scottrao.com
22 March 2024
Investigative journalist; wrote Area 51, The Pentagon's Brain and Nuclear War: A Scenario, reconstructing what secret programmes actually did from interviews and declassified records.
Russia
Their words
But that was their official position, and that changed just two years ago when Putin gave a speech and he said that their position had changed, that they will no longer wait to absorb an attack.
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youtube.com
8 March 2024
Historian of invention; writes Age of Invention on where the Industrial Revolution actually came from.
4 March 2024
Historian of Ukraine at Harvard; wrote The Gates of Europe, Chernobyl and The Russo-Ukrainian War.
Russia
Their words
So for him, the biggest tragedy is not the loss of life, the biggest tragedy is the loss of the great power status or the unity of those whom he considered to be Russian nations.
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youtube.com
29 August 2023
Historian of invention; writes Age of Invention on where the Industrial Revolution actually came from.
Their words
Just as in the sciences it is considered good practice to make one’s data available, in history it should perhaps be a requirement to upload to some public repository the photographs or transcriptions of any cited archival sources that are not otherwise freely accessible online.
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ageofinvention.xyz
29 June 2023
Programmer; founded comma.ai and tinygrad, and was the first to unlock the iPhone.
AGI
Their words
When I talked about will GPT12 be AGI, my answer is no. Of course not. I mean, cross-entropy loss is never going to get you there. You need probably RL in fancy environments in order to get something that would be considered AGI-like.
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youtube.com
11 October 2022
Psychologist and science writer; wrote Science Fictions on how research goes wrong, and writes the newsletter of the same name.
19 October 2021
Philosopher and historian of existential risk; wrote Human Extinction, and coined "TESCREAL" with Timnit Gebru for the cluster of ideologies they argue underpins the AI industry.
6 October 2021
Biologist at the MIT Media Lab; invented CRISPR gene drives and then spent years arguing for safeguards against their misuse and against engineered pandemics.
Their words
Like nuclear physics, with its potential for global catastrophe when put to destructive ends, the proliferation of pandemic biology ought to be considered a matter of international security.
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media.mit.edu
14 May 2020
Author and clean-energy analyst who writes on solar cost curves.
1 January 2020
Writer and researcher on China, technology and industry; author of Breakneck, research fellow at Stanford, known for a widely read annual letter.
China
Their words
In fact, I suspect that Chinese firms should be considered underperformers as a whole.
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2019 letter danwang.co
10 February 2019
Co-founder and CTO of Oxide Computer Company. Created DTrace at Sun Microsystems and was CTO of Joyent; blogs about systems software, open source and engineering culture.
Their words
Since reading it over two decades ago, I have recommended The Soul of a Machine at essentially every opportunity, believing that it is a part of computing's literary foundation – that it should be considered our Odyssey.
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bcantrill.dtrace.org
12 June 2009
Environmental writer and campaigner; author of Six Degrees, The God Species, Seeds of Science and Our Final Warning.
Their words
Yes, James Lovelock wrote The Ages of Gaia, I think, in 1988. It wasn't his first Gaia book, but it is probably the best written one. I have just been re-reading it recently and certain themes that he picked up on are ones that are still considered novel today. Not just the whole idea of the way the earth works, almost as a living organism. But also looking at the way humanity is going to have to reconcile itself with the constraints and the limits of the planet.
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fivebooks.com
11 June 2006
Designer and technologist; author of The Laws of Simplicity; former president of the Rhode Island School of Design; formerly at the MIT Media Lab.
1 January 1985
Founder and CEO of Wolfram Research, creator of Mathematica and Wolfram|Alpha, and author of A New Kind of Science.
Nothing matches. Show everything
A korrent is a belief a person has stated in their own words: one
sentence stating the claim, backed by a quote and a source, kept at
korrents.com .
Under a name here, the quoted block is what they actually said.
The korrent beneath it is the claim those words support, in
korrents' wording — tap it to see the record, its source, and who
else holds it.
Nobody here wrote their own korrents. They are compiled from public
statements, and a person can change their mind, which is recorded too.
Got it
About the English under a post
Some people here publish in a language other than English. Where they
do, this site shows a machine translation beneath the post, in
this typeface — the site's own, not theirs.
The post itself is never changed, moved or hidden: what is set in the
serif above is exactly what the person published, and it is what to
quote them on. A translation can be wrong in ways that matter,
especially about tone.
Only the post's own words are translated. A quoted post, a linked
article and a belief on korrents.com
are left in their original language.
Got it