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British open-standards and open-source technologist, formerly of the UK Government Digital Service and the W3C Advisory Committee. Blogs at shkspr.mobi, where he posts a book review most weeks.

• Massive Qi chargers for cars! https://electrek.co/2026/09/18/its-finally-here-porsche-puts-wireless-ev-charging-into-production-video/ I can see the utility of using this for slow charging. But is it really that much of a faff to plug in a cable? I wonder how perfectly aligned the car needs to be. Still, interesting to see whether this gets picked up or standardised.

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Investment researcher and engineer who runs Lyn Alden Investment Strategy, writing on macroeconomics, currency systems and equity analysis.

• There are moments where I wonder if I’ll run out of jokes. And then I see posts like this.
  Quoting@SecScottBessentGreat to welcome @jakepaul to the Treasury Department today. Jake’s path from content creator to entrepreneur and professional boxer is a distinctly American story. 🇺🇸🇺🇸🇺🇸

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Designer, product manager, YouTuber and developer who has written about technology at Birchtree since 2010. He makes the Quick Reviews and Quick Notes apps and the A Better Computer YouTube channel.

• The iPhone 18 Pro is a transcription monster

  Apple made a big deal out of the AI capabilities in their new A20 Pro processor in their new iPhone marketing. They've doubled the number of cores in the neural engine, and this made me immediately wonder how much bette…

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Creator of Flask and Jinja. Writes about software at lucumr.pocoo.org.

• I wonder if at this point there couldn't be a very of MCP that is literally codemode + openapi + RAG for openapi docs instead. The reference Radius skill is just OpenAPI and it works so well.

  MCPRelated

Writer of Today in Tabs, a daily media-and-internet newsletter started in 2013; earlier founded the community site Kuro5hin.

• I will never stop feeling extremely smug when I look around at a landscape and think “huh, I wonder why it’s like this?” and later find out that there’s a very interesting historical reason it’s like this and actually it underlies the entire history of the region.

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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.

• “Every night I close my eyes And there is something that I visualize I hear a voice, say, ‘I love you’ I picture all things that we're gonna do And I wonder who he'll be Wonder if he'll be good to me Wonder, gosh oh gee Wonder if he'll love me forever”

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Web designer and writer; founded A List Apart and Happy Cog, co-founded the An Event Apart conference, and wrote Designing With Web Standards.

• When an “honest mistake” by an insurance company is so commonplace it can be fixed with a checkbox, yet fixing it requires a paid consultant, you have to wonder whether insurance companies exist to deliver healthcare at all.

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Singaporean writer and author of FRIENDLY AMBITIOUS NERD; blogs at visakanv.com about ambition, writing and thinking in public.

• good news: I’m still available for marketing consults (see pinned tweet)
  Quoting@pmituterrible news: Marketing (even with the use of AI) is still super hard

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Web designer and writer; founded A List Apart and Happy Cog, co-founded the An Event Apart conference, and wrote Designing With Web Standards.

• When an “honest mistake” by an insurance company is so commonplace it can be fixed with a checkbox, yet fixing it requires a paid consultant, you have to wonder whether insurance companies exist to deliver healthcare at all.

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Programmer, writer and musician; author of the Learn Code the Hard Way books and of Mongrel, the Ruby web server.

• If you ever wonder where I get ideas for my videos that get 500k+ views it's from idiots like this:

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Geneticist and writer on human population genetics, deep history and evolution; author of the Unsupervised Learning newsletter.

• this sort of tweet is fine. i have the same concerns
  Quoting@BlakeSNeffI think this is one of the most important facts to be aware of in the debate over Indian immigration: Even relative to other Asian immigrants, Indian Americans are on average very liberal, not just in terms of voting Democrat but also holding particularly left-wing views on specific issues. Indian…

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• so what should i do about it? not tweet about genetics? 🤷🏾‍♂️
  Quoting@ProfBootyPhD@razibkhan "As usual when i get surfaced in some parts of X" - you are too generous to your followers (understandably). Almost every time you post about anthropology and genetics, the same people are there to slurp up every factoid that might support white superiority.

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Front-end developer and writer; co-founder of CodePen, founder of CSS-Tricks, and co-host of the ShopTalk Show podcast.

• Boooo. I did try and get it back once. I wonder if we could still make that work. chriscoyier.net/2024/02/28/w... I’m down to find a win-win situation, DO. Call me. 🤙
  Quoting@geoffgraham.me📝 Why CSS-Tricks Has Been Quiet Lately (cc: @digitalocean.com @css-tricks.bsky.social ) geoffgraham.me/why-css-tric...

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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.

• op deleted his tweet (thanks I guess) but I get a ton of questions about why I sometimes limit replies, and if you’d like to know the answer you can look below.
  Quoting@deanwball@sponkostonko I limit my replies when it occurs to me to do so to make it slightly harder for people to threaten me and my family with violence, which happens frequently in my life now. It still happens, but at least with replies limited my wife is less likely to see it.

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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.

• You can run git on object storage if you re-make packfiles

  It sure seems that a bunch of companies are trying to ship a git product of some kind as of late. Wonder why that is. Either way, I’m building a Git server backed by object storage as an open-source project. It sounded…

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Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.

• The contagion of fear

  Bryan Cantrill responds to the tweet by former Anthropic employee Jacob Coxon confirming that many Anthropic researchers believe AI "could kill us all by the end of the decade". Bryan shares a story of his own youthful…

  AnthropicRelated

Economist and journalist; Financial Times columnist as The Undercover Economist, author of How to Make the World Add Up, and presenter of the Cautionary Tales podcast.

• My tweet was less about how to do the task, and more about what happens when I tried to use a well-established tool (Google search). Also - isn't the very high failure rate interesting? 'Sometimes makes errors' is one thing. 'Always makes errors' is something else.
  Quoting@joshgans@TimHarford You need to use a real AI agent to do that task.

  GoogleRelated

Programmer, teacher and speaker; long-time Microsoft developer-community figure, host of the Hanselminutes podcast and author of the hanselman.com blog.

• I wonder if the call for AI to slow down happened because they asked it and claude was like you're right to push back

  AnthropicRelated

Creator of Flask and Jinja. Writes about software at lucumr.pocoo.org.

• Interpreting Pangram

  Original prompt to generate a David Sacks like tweet

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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.

• I’m going to delete this tweet and post screenshots here for posterity. I stand by the argument but we shouldn’t fight. This is too important for squealy arguing. I am going to choose to see David’s OP as an olive branch and operate under that assumption. TYFYATTM!

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Distributed-systems safety researcher; runs the Jepsen consistency-testing project and wrote the Riemann monitoring system.

• I wonder if houses are like the backrooms to bugs

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Author and journalist writing on food, plants and consciousness. Professor at UC Berkeley and co-founder of its Center for the Science of Psychedelics.

• What Are We Doing to Our World of Wonder? https://t.co/9S23FZsYD5 via @NYTOpinion

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Former option trader and risk analyst, now a distinguished professor at NYU. Author of the Incerto essay series, including The Black Swan and Fooled by Randomness.

• It's going to be an interesting screen adaptation. I wonder who wil play the main character.

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Creator of Homebrew, the macOS package manager, and a Swift developer.

• Clicking the Grok button is rarely satisfying. If the tweet is “I like grooglefabs” Grok will delightfully tell you “FooBar comments on his love of grooglefabs. A common sentiment among the fabblegrooglers”. I don't want to type “wtf is a grooglefab”. You are meant to be AGI.

  AGIRelated

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.

• people reviewing jasmines tweet before the culture fit interview
  Quoting@jasminewsunI hear roughly 3 reasons people keep working at AI labs despite believing in ~10% extinction risk: 1) Techno-determinism: Someone will build ASI no matter what, and I can do it better & more safely than China/OpenAI/etc 2) Consequentialism: ASI might kill us, but it also might produce utopia/immort…

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Canadian software developer and writer, co-editor of the XML and Atom specifications and formerly of Sun Microsystems, Google and AWS. Has written the blog ongoing since 2003.

• Huh, I was at Apple.com and glanced at the Mac Studio page - https://www.apple.com/mac-studio/ - I notice they're explicitly pitching it for LLM on the desktop. I wonder how realistic that is… Hmm, let’s ask @simon, he’s closer to this stuff than most of us. I’m pretty convinced that irrespective of all the issues, the economics of #genAI just don’t work with the current compute infrastructure requirements. Open models and what’s left of Moore’s law could be a really big deal. #apple

  LLMsRelated

Programmer and writer; co-founder of Stack Overflow and Discourse, and author of the Coding Horror blog, which he has written since 2004.

• "Multiple people now literally have the wealth of nations, or at least that of large government agencies. No wonder public policy is in shambles."

  governmentRelated

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.

• I use this Vinod Khosla tweet with apologies to Vinod, since tweets are often out-of-context or emotive, to launch a discussion on the trade-off between scaling up and building business models (profitability) that every business faces.

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Developer and podcaster; created Instapaper and Overcast, co-founded Tumblr, and co-hosts the Accidental Tech Podcast.

• My favorite CarPlay feature is when it's reading a text message to me and I go to tap the "Done" button and it suddenly turns into a "Call” button underneath my finger and I have to wait for all of the animations to finish before I can actually end the call and then I wonder (a) did the person notice that I called them for a few seconds and (b) do I need to explain that now and (c) are they going to call me back now and (d) HOW DID THIS INTERFACE EVER SHIP oh my god

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Economist; former chief economist of the International Monetary Fund.

• another tweet written a bit too fast. By "central bank debt" I mean public debt held by the central bank". Apologies☹️
  Quoting@ojblanchard1No, and useful to repeat: Contrary to interventions such as QE or debt management by Treasury, cancellation of central bank debt has zero mechanical effect on the liabilities of either the central bank (bank reserves are the same) or the government (the debt held by private investors is the same)

  public debtinterest ratesRelated

Director of institutional asset management at Ritholtz Wealth Management. Writes the A Wealth of Common Sense blog and co-hosts the Animal Spirits podcast with Michael Batnick.

• We are very close to 7% mortgage rates yet again We've now had mortgage rates >6% since late-2022 And still no housing market crash I do wonder if housing is the shock absorber for the economy if/when AI causes an economic slowdown (and rates fall)

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Writer and novelist. Publishes essays and book notes at nateliason.com; author of the novel Husk and of Crypto Confidential.

• 52% Across the 6 Founders Weekends this summer, 52% of the students attending, 253/484, made their first dollar within 48 hours. I wonder what percent of adult entrepreneurs make their first dollar that fast? Or ever?

  startupsRelated

Founder and CEO of Social Capital, a venture firm; co-host of the All-In podcast and an early Facebook executive. Writes an annual letter and a weekly newsletter on markets and technology.

• Whenever you are told “Trust the experts” you are better off doing the opposite. Remember when Covid “Trust the experts” led to a civilizational hoax that broke our economy and retarded our children? The AI “Trust the experts” version will make that pale in comparison. I’d encourage all of you to approach this with wonder but also a healthy dose of skepticism.

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Software engineer at PlanetScale and creator of the vim-go plugin. Writes at arslan.io about Go, tooling, industrial design and books.

• I think I’ve realized that GUIs, even though they have much better primitives for displaying all sorts of information and interacting with it, are also very restrictive. There’s usually only one way of doing things in a UI. You either love it or hate it. Which brings me to terminals and multiplexers. When you think about it, a terminal is basically a small GUI builder, letting you create your own environment from small, well-crafted tools that each do one thing well. So it’s no wonder people keep coming back to terminals.
  Quoting@mitchellhQuick Superlogical demo to end the week. This demo is just of the basic functionality, but I want to highlight just how FAST it is. There's a WHOLE lot more functionality already present and coming but I wanted to keep the demo short. But seriously, check out that speed. I'm showing the macOS app h…

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Free software developer and longtime Debian developer; author of git-annex, etckeeper, ikiwiki and debhelper. Lives and works off-grid.

• Spent a good part of the day repairing my electric lawnmower. It would be easy to find someone to do small engine repair on a gas one, and it would be easy to throw out a ~8 year old mower and get a better replacement that uses the same large batteries as my chainsaw. This does make me wonder how environmentally friendly this kind of electric tool really is. Anyway, it seems to be either a hall effect sensor problem or an off balance blade that's causing the hall effect sensor to think the mower is overloaded or has hit something. Runs fine without the blade it turns out. So I'll try replacin…

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American software engineer; worked on code-server at Coder and teaches TypeScript and open-source contribution. Publishes at joeprevite.com.

• today is the day you stop doomscrolling stay with me - this will take 5mins 1. open the AppStore 2. download "ScreenZen" (free) 3. configure limits (e.g. 4 15-min sessions) 4. start with 1 social media app 5. a few days later, add another 6. repeat until you've added all apps too busy right now? add a calendar event with this tweet and do it this weekend trust me, you'll thank me next month

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Software engineer; co-founder and former CTO of Tailscale, previously on the Go team at Google.

• this old tweet is getting some likes (why? mysterious), so I re-read it, and still like it. it also applies really well to what I am working on now: I need lots of VMs for agents, but I don't need lots of CPU/RAM. hence @exedev
  Quoting@davidcrawshaw@danluu one of the big early ideas behind tailscale was a single computer is powerful enough to solve almost every problem, and that this is not widely understood. we need fewer distributed systems and more spreadsheet implementations.

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Brazilian software engineer, creator and maintainer of GoReleaser; works on Copilot CLI at GitHub. Writes about tooling and his setup at carlosbecker.com.

• Underrated tweet I think it also applies to any software, so long it has users
  Quoting@solomonstreRule #1 of open-source: no is temporary, yes is forever.

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Designer and engineer; formerly principal research engineer at GitHub Next; writes at wattenberger.com.

• there's something rotten in the air when >90% of the replies to a tweet like this are mean spirited sure, it might not be your thing and it's easy to forget this box doesn't go straight into the void. but can we try to bring more kindness into the world?
  Quoting@WattenbergerI look away for one week and VSCode got cute?!

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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.

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Writer of the personal-finance blog Of Dollars And Data and author of Just Keep Buying and The Wealth Ladder. Chief Operating Officer at Ritholtz Wealth Management.

• The Problem with Optionality

  I’ve seen a lot of discussions this year around maximizing freedom and optionality. For example, consider this tweet: If you ever get up $1M in cash Buy a new modern apartment in the UAE for like $550k (you have zero pr…

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Indian software engineer and co-founder of Skcript; builds web apps and writes at varunraj.in.

• Looks like Bangalore's Metro website is built on @nextjs and running in Dev Mode. Sourcemap is exposed and I can see the dev loader at the bottom. I wonder which agency is doing this, the city is flooded with talent yet the government gave the project to someone who messed up.

  governmentRelated

Indian technology consultant and writer. Former editor of Beautiful Pixels; writes about Apple hardware and Mac software at nuclearbits.com.

• I wonder why old trees keep dying or falling down when BMC takes such good care of them.

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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.

• prompt-cardio — Prompt Faster: the vibe coding interview. A typing test disguised as an AI chat.

  Commitsfeat(ui): tweet-sized results card · feat: harder rank curve — CTO of Vibes now demands 140+ wpm · feat: swarms are engine-injected at rounds 2/4/6 — skill unlocks the spectacle

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Swedish essayist who writes Escaping Flatland, a newsletter of essays on relationships, thinking, writing and homeschooling.

• How not to forget what matters

  1. Every few months I will read a tweet, or have a conversation, that makes me feel this is important, I must remember this.

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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.

• Nowadays, I often see people say they have access to unlimited tokens. Usually for work, although in response to https://t.co/BuzKs79xk5, someone from Microsoft said they have unlimited tokens for personal projects. I wonder what this means in practice. Surely there's a limit?
  Quoting@danluuWhat do people like for token-intensive workflows for personal projects? With a semi-autonomous workflow, I can exhaust a week's quota on the $200/mo codex plan in ~10 minutes of my time. If I'm in the loop, I get ~10x(?) the productivity per token, but it's time inefficient and

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Freelance web developer and instructor. Author of the Dive Into Docker course; writes tutorials on Docker, deployment and development environments at nickjanetakis.com.

• Over the last 3 months I lost 300 followers (about 10%). I wonder if these were bots. I feel like within the last year Twitter engagement has gone from quite good to almost nothing. It sometimes feels like I'm shadow banned. Has anyone noticed the same?

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Co-founder of AngelList. Writes and podcasts at nav.al in short, aphoristic pieces on startups, wealth and judgement rather than long essays.

• A Return to Code

  You’re listening to the Naval Podcast. This is Nivi, his regular co-host. Today we’re going to talk about vibe coding. Let me tee up the conversation with a tweet from Naval from March 23rd: “AI coding agents can now de…

  coding agentsRelated

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@FarzaTVThis 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,…

  LLMsRelated

• Wow, this tweet went very viral! I wanted share a possibly slightly improved version of the tweet in an "idea file". The idea of the idea file is that in this era of LLM agents, there is less of a point/need of sharing the specific code/app, you just share the idea, then the other person's agent customizes & builds it for your specific needs. So here's the idea in a gist format: https://t.co/NlAfEJjtJV You can give this to your agent and it can build you your own LLM wiki and guide you on how to use it etc. It's intentionally kept a little bit abstract/vague because there are so many directio…
  Quoting@karpathyLLM Knowledge Bases Something I'm finding very useful recently: using LLMs to build personal knowledge bases for various topics of research interest. In this way, a large fraction of my recent token throughput is going less into manipulating code, and more into manipulating knowledge (stored as mar…

  LLMsRelated

JavaScript programmer; creator of the jQuery library, author of Secrets of the JavaScript Ninja, and long-time engineer at Khan Academy.

• jeresign instead of jeresig in Claude Code (w/ Opus) - I wonder how often this happens and how many tokens I end up burning due to this? 🫠 Pretty funny 😆

  AnthropicRelated

British software developer at Laravel and creator of the Cachet open-source status page system. Podcaster; writes at james.brooks.page.

• tweet.new — Say hello to tweet.new, your shortcut to posting faster on X!

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CEO of Vercel; creator of Next.js and Socket.IO. Writes at rauchg.com.

• ray-city — A city animation that fits in a tweet

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Writer and engineer behind the blog Melting Asphalt, and co-author with Robin Hanson of The Elephant in the Brain.

• I'm excited about the LessOnline festival! May 31 – June 2 (Link in next tweet, smh Elon.....) Hit me up if you're planning to attend — it'll be great to see some internet friends IRL

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Writer and engineer behind the blog Melting Asphalt, and co-author with Robin Hanson of The Elephant in the Brain.

• mind-expanding short story by @etirabys about a "sapient mitotic species" this is a rare piece of fiction that's well grounded in evolutionary biology and psychology i read it about 6 months ago and have re-read it twice since 👇 link in next tweet

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Brazilian-American staff software engineer working on platforms, AI and developer productivity. Writes about engineering and his setup at ivansantos.me.

• That's my first tweet with @typefully. How come I didn't know about this tool before? 🔥

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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.

• This tweet stream showcases some of the writing by USV analysts over the years. Though they have moved on to bigger and better things, their writing and their ideas live on at USV and https://t.co/btPOKgjAa4. It is a gift that keeps on giving.
  Quoting@nickgrossmanReminder that applications are now open for the next class of @USV analysts! One of the ways that USV analysts work is through writing, both about thesis areas and new investments. To give a flavor, here are some highlights of writings by USV analysts over the years:

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Co-founded Neuralink and founded Science Corp, which is building a retinal implant; writes about neural interfaces and biology.

• What does Twitter asymptote to?

  Consider the following interpretation of Twitter: Twitter is a process that is applied to a human thought vector $x$, a time $t$, and a state vector $c_{t-1}$ which emits a value $tweet$ and a new state vector $c_{t}$.…

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Engineering leader and writer; wrote The Manager's Path and Platform Engineering, and blogs at Elided Branches.

• Driving Cultural Change Through Software Choices

    This tweet got me thinking about change, and how software engineers (and especially, Platform teams) can drive cultural change throughout companies. First, let’s take the question. You want to change the engineer…

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Founding member of OpenAI and former director of AI at Tesla; creator of nanoGPT and the term "vibe coding".

• A Recipe for Training Neural Networks

  Some few weeks ago I posted a tweet on “the most common neural net mistakes”, listing a few common gotchas related to training neural nets. The tweet got quite a bit more engagement than I anticipated (including a webin…

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Financial journalist; chief financial correspondent at Axios and host of the Slate Money podcast, previously a blogger at Reuters and author of The Phoenix Economy.

• Nota bene: Gallows humor

  Did you laugh when you saw this tweet?

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General partner at Benchmark Capital for over two decades; was the lead analyst on Amazon's IPO before moving into venture capital. Writes Above the Crowd on tech and marketplace economics.

• The Ezra Klein Show: VC Bill Gurley on Transforming Health Care

  In November of 2015, I posted a tweet that declared Benchmark was interested in discovering Internet healthcare investments. Our firm has had the good fortune to invest in many two-sided networks that used information a…

  benchmarksRelated