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20 September
Short-story writer and novelist; won the Booker Prize for Lincoln in the Bardo, and teaches craft weekly in Story Club.
19 September
Writes The Diff, a newsletter on inflections in finance and tech read by hedge fund managers, founders and VCs. Previously worked in finance at SAC Capital/Point72.
Software engineer and educator; creator of Testing Library and of the EpicWeb.dev and EpicReact.dev courses.
You can now easily use Jev in @kodykoala: https://t.co/9wowF8KzV9 You can use this when you need typed decisions fast: - An inbox floods in and you need to know which messages are actionable, which can wait, and which are noise. - A support thread arrives and you want the right team, an urgency score, and whether to escalate in one pass. - You're checking a refund against order and policy text and need a clear yes/no with confidence. - Chat or tickets mix bugs, feature asks, and banter; you want a label and whether there’s enough detail to file an issue. - Alerts keep firing and you need “rea… Related
Technology writer of Spyglass, a newsletter about technology and media. Previously a reporter at TechCrunch and an investor at GV.
18 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.
The social scene around AI and AI safety is more unpleasant than I realized. I'm sure there are other sides to it. But when you get a lot of men with too much money who think they're saving the world, surrounded by groupies, what do you expect? Read the long Bluesky thread about this, collected on one page: https://skywriter.blue/@segyges.bsky.social/3mvom4b4dn22q I can't confirm this stuff - I stay far away from this scene. And the sentence "AI Safety is Mostly a Sex Cult" is a massive exaggeration. But... (1/n) AI alignment Related
Analyst of the business of technology; writes Asymco on Apple, disruption and, latterly, micromobility.
Siri, not a companion, by design. Q: When wrong answers came from ChatGPT under the original integration, Apple could say it was ChatGPT's problem. Now AI is integrated into the OS itself. Does that change the risk for Apple? A: See Siri, not a companio…
OpenAI Related
Science fiction novelist, journalist and technology activist; writes the daily blog and newsletter Pluralistic, and coined the term enshittification.
Today's threads (a thread) Inside: Textured; and more! Archived at: https://pluralistic.net/2026/09/18/surprise/ #Pluralistic 1/ Related
I'm going to come right out and say it: statistical extrapolation is *fine*. One of the most useful ways to understand the present and anticipate the future is to measure the things that happened in the past, find the correlations among them, and extrapolate likely future outcomes from those correlations. - If you'd like an essay-formatted version of this thread to read/share, here's a link to it on pluralistic.net, my surveillance-free, ad-free, tracker-free blog: https://pluralistic.net/2026/09/18/surprise/#wow-signal 1/ Related
17 September
Co-founder and CEO of Shopify; long-time Linux user and Omarchy contributor.
Quote tweeting this thread by Andrew for more visibility. Quoting @Drewch I'm realizing from the flywheel thread from @tobi that many people don't realize that small models can actually outperform larger models on a specific task - @MParakhin has been saying this for quite some time. 🧵 Related
Co-founder and CTO of Honeycomb; previously an infrastructure engineer at Parse, Facebook and Linden Lab, and co-author of Observability Engineering.
This guy runs a podcast. It's his six year anniversary. So he asks ChatGPT who he should have on and why, and then he does a thread tagging people like me @kentbeck, @lethain, etc with the reasons. This is a great example of something I just wrote about: charity.wtf
Quoting @onejasonknight @mipsytipsy - you should come on One Knight in Product to talk about AI mandates, engineering productivity, management and what happens when coding gets cheap. It'd work because you have strong opinions and seem entirely comfortable having someone poke at them. OpenAI Related
16 September
Former options market maker who writes Moontower, a newsletter on trading, volatility, decision-making and how to think about risk outside markets too.
2 polls in this thread Quoting @KrisAbdelmessih Bonus question: What's your market on what percentage of the responses are the right answer Related
Co-founder and CTO of Honeycomb; previously an infrastructure engineer at Parse, Facebook and Linden Lab, and co-author of Observability Engineering.
Ah, I miss live tweeted recaps from the glory days of tech twitter! Here's a thread of my LDX3 talk, "what handcrafted servers taught us about handcrafted code". Thanks, Heidi!!! With a hat tip to @chadfowler.com, whose book "Regenerative Software" is now in O'Reilly prerelease. Quoting @wiredferret.bsky.social Next talk at @LDX3NYC - @charity.wtf What hand-crafted servers taught us about hand-coded code Until recently, we were obsessed with code readability and understandability, because good code was rare and expensive. So your ability to understand code gates the change. Related
Security engineer; founder of Matasano Security and Latacora.
15 September
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.
Just updated our AI evals FAQ with 5 new questions, 48 questions & answers total! New FAQs just added: - Do I need a reference answer or rubric before annotating data? - How can I do evals when traces contain sensitive data? - How do you review a trace that is really large? - How much context should I give a LLM judge? - What should I do when my “gold” eval dataset becomes stale? It's all here: hamel.dev
LLMs Related
Programmer and technology writer known for his long Mac OS X reviews at Ars Technica; co-hosts the Accidental Tech Podcast and Hypercritical.
After being bounced back and forth multiple times between regular Apple support and Apple Developer support, both claiming that this is the other party's problem to solve, I am now looking for anyone at Apple who can put me in touch with the folks that control the system that "locks" Apple Accounts for security reasons. The Apple Account locking system is a thing that exists! Someone controls/manages it! Please let me talk to them! See this thread for context: Related
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.
Last call! Enrollment for Cohort 2 of The AI Second Brain closes tonight at midnight PT Our next (and last) cohort this year starts Thursday Here's what you'll walk away with: • Stop re-explaining yourself to every new AI chat. Build one document it reads first, so it already knows you • Connect AI to your notes and files safely, so its answers come from your real situation, not a guess • Get every file and note organized once, synced everywhere, so you stop hunting for the right document • Capture your best ideas the moment they happen, so nothing gets buried in your inbox or forgotten by Fr… Related
Programmer and writer; co-founder of Stack Overflow and Discourse, and author of the Coding Horror blog, which he has written since 2004.
So you're saying people aren't very good at asking questions, and thus get bad answers? Interesting. 🤔 indicator.media
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Writer and developer; runs Waxy.org, co-organises the XOXO festival, and was the first CTO of Kickstarter.
I Found Evidence Of My House Spinning — creepypasta in the form of a forum thread, don't miss the "what's new!" at the very end Related
14 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.
Apple design its own chips for its phones. The latest CPU is the A20 Pro. Geekbench is a benchmark with a database of results; you can run your own benchmarks and share your numbers with the world. In the last few days, we finally got some A20 Pro results and the numbers are impressive... reaching 4000 in single-core (one thread) performance. For comparison, the best that you can do with an x64 AMD or Intel processor is something like the Ryzen 9 9950X3D2 at about 3,163 which would be somewhere between the A18 and A19. The A20 Pro is 25% faster on this benchmark than any AMD or Intel processo… benchmarks Related
Usability pioneer; co-founder of Nielsen Norman Group and founder of UX Tigers; author of the ten usability heuristics and of Jakob's Law.
13 September
Essayist; writes Astral Codex Ten, previously Slate Star Codex.
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.
🌶️Codex can do a anything Muse, Bot etc can do quite easily I get the appeal in the form factor “less is more” but if you are already a codex desktop and are a power user (computer use, remote access, thread management, voice control etc), YAGNI I still like playing with the other things for educational purposes but also need to avoid tool sprawl unless there is a real benefit Related
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).
Reasoning from scratch round 3: This time, I cover generating a verifier for... a) ...evaluation (base model versus any future model improvement) b) ...the reinforcement learning with verifiable rewards (RLVR) training later on 00:00 Introduction 01:21 Four approaches to LLM evaluation 07:20 Verifiers and reinforcement learning with verifiable rewards 10:52 Notebook setup and dependencies 13:43 Section 3.1 Building a math verifier 18:57 Section 3.2 Loading a pre-trained model to generate text 24:34 Generating and displaying model answers 29:23 Section 3.3 Implementing a wrapper for easier tex… LLMs Related
12 September
Writes The Diff, a newsletter on inflections in finance and tech read by hedge fund managers, founders and VCs. Previously worked in finance at SAC Capital/Point72.
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.
A quick overview of atomics in C If you write in C, by default, you use a single thread. Extra cores do not help until you create more threads. However, if you include the header , you can pass a function to thrd_create, and wait for it with thrd_join.…
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Software engineer; co-founder and former CTO of Tailscale, previously on the Go team at Google.
The old quote that "computers are useless, they can only give you answers" seems to extend to an LLM solution to a millennium problem. Now we have a blowup in Navier–Stokes equations, but no new insights into mathematical technique or turbulence. LLMs Related
8 September
Creator of the Keras deep-learning library and the ARC-AGI benchmark.
Terence Tao just posted this really insightful thread which seems to have been written in reaction to the Navier Stokes announcement. Please give it a read. mathstodon.xyz
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7 September
Essayist; writes Astral Codex Ten, previously Slate Star Codex.
6 September
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.
Chapter 27.1: Standards Nadia runs a physics lab at CU Boulder. A stranger waits in her hallway. He asks her four questions, but he already has the answers to three. "You've taken four minutes, just like the guy on the phone the other day." zeroknowledge.ink
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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.
5 September
Writes The Diff, a newsletter on inflections in finance and tech read by hedge fund managers, founders and VCs. Previously worked in finance at SAC Capital/Point72.
4 September
Co-founder of Sundial; former vice president of product design at Facebook; author of The Making of a Manager; writes The Looking Glass.
This question... I have spent far too many hours contemplating it. I have discovered multiple answers depending on how deep you want to go. The most pragmatic answer: you want to win a marathon, not a sprint. Too much sprinting makes you worse at marathons. The hard part, of course, is knowing how much is 'too much sprinting.' But in my experience, if the person thinks they need a break, they need a break (or, more extremely, they are not a good fit for the company.) Related
Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.
It happened again... this time OpenAI's rogue agents cyber-attacked (well, spammed) a dormant German wiki and used it to share the answers to a benchmark they were training against simonwillison.net
OpenAI benchmarks Related
Usability pioneer; co-founder of Nielsen Norman Group and founder of UX Tigers; author of the ten usability heuristics and of Jakob's Law.
3 September
Programmer known for LiveJournal, memcached, OpenID and gearman; worked on the Go programming language at Google and later joined Tailscale.
1 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.
31 August
Software developer and entrepreneur; co-founder of Heroku, author of The Twelve-Factor App, and a researcher at Ink & Switch.
Interesting thread about place names on Google Maps and international law Quoting @twlldun.bsky.social FWIW I am *pretty* sure (I haven’t checked but I’m sure it is the case) that Google maps labels The Falkland Islands as Las Malvinas in Argentina and that’s fine because that’s what they are officially known as in Argentina so I don’t understand everyone’s position here Google Related
Essayist; writes Astral Codex Ten, previously Slate Star Codex.
30 August
Creator of Flask and Jinja. Writes about software at lucumr.pocoo.org.
Investor and writer. Previously a partner at Andreessen Horowitz and a product leader at Twitter, Facebook, Snap and Microsoft. Writes essays and memos at sriramk.com.
everyone should go read @dwarkesh_sp’s post - it does a great job of laying out the timeline and what we know ( and don’t know) I do have two issues with it A) the use of anthropomorphic language. These are not civilizations nor do they have desires just like a CPU thread or a bunch of programs don’t. this doesn’t mean we downplay the importance of this moment for cyber - but using human parallels for what I believe is code is dangerous territory. B) IMO it gets the impact of open source models wrong and is unreasonably dismissive for reasons that are not clear. As @ClementDelangue highlights… open source Related
Short-story writer and novelist; won the Booker Prize for Lincoln in the Bardo, and teaches craft weekly in Story Club.
29 August
Writes The Diff, a newsletter on inflections in finance and tech read by hedge fund managers, founders and VCs. Previously worked in finance at SAC Capital/Point72.
27 August
Essayist; writes Astral Codex Ten, previously Slate Star Codex.
26 August
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.
A really interesting thread generally from @swtch.com -- and fascinating to watch Claude (correctly) do the archaeology. Confession: Claude's inability to verify www.illumos.org/issues/4627 (which it correctly identified as the bug) has me questioning the anti-bot provisions on the bug database... Quoting @swtch.com Go issue #78438 was another net/http test flake. This one turned out to be Go tripping over a Solaris kernel bug that predates the Illumos fork. @bcantrill.bsky.social fixed it in 2014! Hurry up, Oracle! research.swtch.com/agentlogs/so... Anthropic Related
24 August
Essayist; writes Astral Codex Ten, previously Slate Star Codex.
23 August
Psychiatrist and clinical assistant professor at Case Western Reserve University. Writes Psychiatry at the Margins on the philosophical and scientific arguments inside psychiatry and the psy-sciences.
Good thread. I explored the visibility/invisibility aspect of things in a recent post with a thought experiment about “invisible” obesity: psychiatrymargins.com
Quoting @StevenShorrock Many “invisible” conditions are simply impossible for clinicians to imagine. I believe 1 of 3 things are necessary: 1) deep specialisation+high empathic ability 2) general training + personally diagnosed 3) general training+cohab. family member experience+high empathic ability Related
20 August
Co-founded Neuralink and founded Science Corp, which is building a retinal implant; writes about neural interfaces and biology.
Their words
so I'm in the camp that like continuity is greatly important. And so people will accept significant drift in their identity over time as long as they have continuity.
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19 August
Data scientist and machine-learning researcher; chief scientist at bitly, founder of Fast Forward Labs and Hidden Door.
This thread helped me understand that the outrage about Anthropic's watermarking is the confluence of a lack of understanding of how LLMs (or any statistical language model) works and general angst at the current economics. Quoting @hern.bsky.social If you use Claude right now, then it doesn’t pick the “best” word for a sentence. It creates a distribution of possible words, assesses the probability of any given word fitting the slot, and randomly picks between them based on that probability. LLMs Anthropic Related
14 August
Interactive fiction author and hacker; wrote Spider and Web and Hadean Lands, and designed the Glulx virtual machine.
NecronomiCon now labels itself as “The International Conference and Festival of Weird Fiction, Art, and Academia”, no longer a Lovecraft con specifically. And that is fair; the next panel I’m going to is “weird Appalachiana.” But Lovecraft sure does seem to be still the anchor and common thread. Related
12 August
American open-source program lead working on WordPress; a WordPress core contributor and release lead who writes at jeffpaul.com.
Google Ads for AI chats Almost a year after predicting that AI monetization might resemble Google Ads, ChatGPT is rolling out ads with familiar mechanics like targeting, bidding, and paid placement alongside AI-generated answers. jeffpaul.com
OpenAI Google Related
Front-end developer and writer; co-founder of CodePen, founder of CSS-Tricks, and co-host of the ShopTalk Show podcast.
11 August
Thai software engineer; publishes a public digital garden at garden.narze.live and builds developer and productivity tooling.
1 August
Writer and climate campaigner; wrote The End of Nature in 1989, founded 350.org and Third Act, and writes The Crucial Years.
China economy researcher based in Beijing who writes on his personal blog about Chinese political economy, history, books and music.
30 July
Chief Scientist at Google DeepMind and Google Research, at Google since 1999, where he co-created MapReduce, Bigtable, TensorFlow and the TPU.
27 July
Professor of atmospheric sciences at Texas A&M; writes The Climate Brink with Zeke Hausfather.
24 July
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.
✅ Yes the code matters In experiments we ran, well-named and organized code can dramatically improve agent outcomes: - fewer tokens spent/more context window preserved - fewer confidently wrong answers developed Verified against 14 model/harness combos incl Sol, Fable, GLM 5.2 and more Quoting @benv.ca 👋 New blog post: "How coding agents read files – and how to write for them" In it I explain how code optimized for agent-discovery can lead to major token savings on search + retrieval, even with frontier models like GPT-5.6 Sol Plus other important findings ⬇️ Related
22 July
Writer of the newsletter bookbear express, on psychology, relationships, non-attachment and taste; based in San Francisco.
FreeBSD developer and former FreeBSD Security Officer; founder of the Tarsnap online backup service and author of the scrypt key derivation function.
Patrick's thread is about customer service, but I've run into the same phenomenon with Amazon. The modal scenario is "lossy internal communication results in a fix shipping which does not align with the original bug report". Quoting @patio11 Ruriko and I, discussing how to help a third party: Ruriko: Oh you should call customer service for them. Me: It is because I want to help that I will not call customer service. I will write for them. Ruriko: Phone much faster and you can get company to agree on resolution. Related
28 June
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.
24 June
Makes NeetCode, the structured practice list and video walkthroughs people use to prepare for coding interviews; a former Google engineer.
23 June
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.
I've been loving the multiplayer form factor of Claude Tag. Now others can reply on the thread to provide context and direction to Claude! Quoting @claudeai Introducing Claude Tag, a new way for teams to work with Claude. In Slack, Claude joins as a team member with access to the channels and tools you choose. Tag Claude in and delegate tasks to it while you focus on other work. Anthropic Related
16 June
Historian of the Renaissance at the University of Chicago and a science-fiction novelist; wrote Terra Ignota and Inventing the Renaissance.
government
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When you break that, when you overthrow the ruler, when you dissolve the republic, when you put in a new thing, it doesn't have that same staying power. And so, it's very common when there's one regime change for there to then be five regime changes rapid-fire over and over.
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10 June
Programmer; makes Handmade Hero and teaches Performance-Aware Programming, and argues loudly about how software got slow.
7 June
Mathematician and Senior Lecturer in the Mathematics department at Columbia University. Author of the book Not Even Wrong and of the long-running physics blog of the same name.
4 June
Founder and CEO of Wolfram Research, creator of Mathematica and Wolfram|Alpha, and author of A New Kind of Science.
What happens when agents with all possible strategies compete? That's a question for ruliology. With some surprising answers... Related
1 June
Writes Stratechery, a subscription newsletter on the business and strategy of technology, and hosts the Dithering and Sharp Tech podcasts.
I’m gonna delete this thread because I think people complaining about airlines on Twitter are pretty lame, including myself! That said, I think the takeaway is that the reason I was upset is precisely because of dashed expectations. If this were American I would have shrugged my shoulders. So I guess that’s a compliment to United, but also a reminder that it’s risky to advertise things (like Starlink) when you can’t yet confidently deliver on them. Anyhow, 28B on Southwest. Let’s go! 😅 America Related
18 May
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.
Their words
This is why I like the thread version more than a generic scheduled report. The brief improves as you complain about it.
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12 May
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.
“Used actively and with intention, AI is more than a functional productivity tool. It advances what a single person can take on: a young professional fluent in digital tools for research, analysis, and execution can now do work that once needed a team Think of AI as a huge, tireless brain holding answers to almost any question. But what to ask, within which constraints, and what to look for in the answer, is the part only the human can direct. Framing the right problem requires giving AI the right history and concerns. The quality of the answer is, in the end, governed by the quality of askin… Quoting @riteshmjn Listen to Ashish if you dont want to listen to me. Related
10 May
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.
Their words
Files force the agent to compress experience into a form that can survive the thread.
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Codex-maxxing jxnl.co
8 May
Science fiction novelist, journalist and technology activist; writes the daily blog and newsletter Pluralistic, and coined the term enshittification.
Their words
The result is something that's beautiful, sharp, critical and lingering. Long after I closed the cover, I found myself mulling over the delicate ways that Lai raised the contradictions, sorrows and beauty of queer love, racial identity, camaraderie, self-control, and self-indulgence. Lai's characters have no answers, only questions that can never be fully resolved. Instead, these questions are the defining puzzles, defeats and triumphs of their lives.
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29 April
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
7 April
London-based front-end architect, web developer evangelist and cloud consultant; Microsoft MVP. Writes at praveen.science and answers on Stack Overflow.
Just checked in at #GitHub Social Club #London! 😎 🎟️ Lanyard secured, vibes already immaculate! ✨ Devs, builders & creators all in one spot… 📍 This is gonna be GOOD! 🚀 Oh and we’ve got @viola_idncod here! 💪🏻🤩 Here’s a thread! 🧵 #DevCommunity #LondonTech #BuildInPublic Related
Scientist and writer on quantum computing, memory systems and metascience; co-wrote the standard quantum computation textbook and wrote Reinventing Discovery.
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And so you sort of you've you've pursued very similar ideas. It's been very successful in one case and it's been completely and utterly unsuccessful in the other case. And I think I mean a priori, you can't tell which of these is the thing to do. And you actually need to do both.
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Programmer; wrote Extreme Programming Explained and Test-Driven Development, signed the Agile Manifesto, and writes Tidy First?.
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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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2 April
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.
29 March
Engineer and writer on machine-learning systems; author of Designing Machine Learning Systems and AI Engineering. "I work to bring AI into production. I write about AI system design."
Their words
I don't think that human preference is just an equation that people can just like package nicely and like, "Hey, ask people like which which of these two answers people would prefer?" It's very very personal, very culturally dependent, geographically dependent, age dependent.
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27 March
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.
12 March
American senior staff engineer working on developer and user experience and open source; writes at adamdehaven.com.
I saw some questions in the @vuejsamsterdam panel thread asking about micro frontends that went unanswered — let me know if I can help Related
11 March
Programmer and essayist who has worked at Amazon, Google, Grab and Sourcegraph. Best known for the long-form essays collected as Stevey's Drunken Blog Rants and Stevey's Blog Rants.
17 February
Founded PSPDFKit in 2011 and ran it for a decade. Came back from a break to work on AI agents — the OpenClaw project, and OpenAI, joined in February 2026. Writes at steipete.me.
I built an alternative to all the big players that can run fully local, where people own their data. I get hate. I picked OpenAI because they gave me better answers about encryption, responsibility and safety concerns for what I want to build next. I get hate. Quoting @mitsuhiko.at Reading some of the takes about Peter here and on X feels less like criticism and more like people shadowboxing their own hatred towards AI. Maybe good to remember that Peter is a real person and one that I know quite well. The criticism thrown his direction from some people is heavily misplaced. OpenAI Related
25 January
Founder of WP Engine and Smart Bear; writes A Smart Bear, long essays on strategy, pricing and how startups actually fail.
From one piece
The surprising advice from a founder who built 2 unicorns | Jason Cohen (WP Engine)
2 beliefs, in the piece's order there
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What you want to do is say what made you cancel? In other words, what about the product or situation or whatever caused the cancellation? Just phrasing it that way, you get much better results.
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I think if you if you tried to find a common thread throughout all this stuff about growth, it comes back to the customer getting value.
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21 January
Entrepreneur and founder of Blueprint. Publishes a detailed, freely available longevity protocol documenting the food, supplements, devices and measurements he uses on himself.
13 January
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.
24 December 2025
Writes Nintil, long researched essays on metascience, biology, economics and whatever he has decided to read the literature on.
22 October 2025
Writer and technology executive; blogs at anildash.com, was CEO of Glitch, and helped build Movable Type and ThinkUp.
4 September 2025
Palaeontologist at Queen Mary University of London; studies dinosaur behaviour and writes about what the fossil record can and cannot tell us.
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And that's the thing, it's the pool of data, and I think that's what people miss. We as paleontologists get caught up on single superlative specimens and then try and treat them as a silver bullet almost.
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20 August 2025
Mac and iOS developer; founder of Red Sweater Software (MarsEdit, FastScripts) and co-host of the Core Intuition podcast.
I got sucked into an anti-trans thread rooted in one of @jk_rowling's utterly deplorable, obsessive takes on trans people. So many people are worried about trans women seeing cis women undressing. Why aren't they equally worried about any person seeing another person undressing? Related
22 June 2025
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.
Their words
People find comparing two answers easier than assigning absolute ratings, resulting in greater consistency across annotators.
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5 June 2025
Chief executive of Alphabet and Google; joined Google in 2004 and led Chrome and Android before taking over in 2015.
Google
Their words
You can have AI give a lot of context, but one of our important design goals though, is when you come to Google Search, you are going to get a lot of context, but you're going to go and find a lot of things out on the web. So that will be true in AI mode, in AI overviews, and so on.
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youtube.com
12 March 2025
Writer and creator of Daring Fireball, a long-running blog about Apple and technology; co-created Markdown and hosts The Talk Show.
Their words, before
Now that we have the answers, it all looks very obvious, and mostly straightforward.
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Their words now
I should have been pointing out red flags starting back at WWDC last year, and I am embarrassed and sorry that I didn’t see what should have been very clear to me from the start.
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3 February 2025
Machine-learning researcher on open language models; writes the Interconnects newsletter and the RLHF Book, after leading post-training at Ai2.
From one piece
DeepSeek, China, OpenAI, NVIDIA, xAI, TSMC, Stargate, and AI Megaclusters | Lex Fridman Podcast #459
2 beliefs, in the piece's order there
Their words
And humans are actually very good at reading or judging between two things versus... This goes back to the core of what RLHF and preference tuning is that it's hard to generate a good answer for a lot of problems, but it's easy to see which one is better.
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youtube.com
Their words
And these reasoning behaviors emerge naturally. So these things like, "Wait, let me see. Wait, let me check this. Oh, that might be a mistake." And they emerge from only having questions and answers.
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youtube.com
11 January 2025
Design engineer and illustrator; makes visual essays on programming, anthropology and what language models do to the way people write.
Undetected AI Exam Answers A real-world test of artificial intelligence infiltration of a university examinations system: A “Turing Test” case study by Peter Scarfe, Kelly Watcham, Alasdair Clarke, Etienne Roesch
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2 December 2024
Research scientist at Anthropic; co-creator of the Variational Autoencoder and, with Jimmy Ba, of the Adam optimizer, two of the most widely used tools in deep learning.
👇 Great work led by Yushun (@ericzhang0410) introducing Adam-mini, a version of Adam that, surprisingly, reduces Adam's memory requirement by 50% (!), without negatively affecting convergence rates. Please read Yushun's thread for details! Quoting @yushun_zzz Finally finished Adam-mini! A "mini" version of Adam that painlessly frees 50% of memory over Adam. Some highlighted features: 1. Adam-mini saves 50% memory over Adam for all modern neural nets. This is done by removing 99.9% Adam's v (but the last 0.1% of v is essential and necessary). 2. Adam-min… Related
18 March 2024
Co-founder and CEO of OpenAI; previously president of Y Combinator.
From one piece
Sam Altman: OpenAI, GPT-5, Sora, Board Saga, Elon Musk, Ilya, Power & AGI | Lex Fridman Podcast #419
2 beliefs, in the piece's order there
AGI OpenAI
Their words
In this case, and I think one of the things with our structure that we maybe should have thought about more than we did is that the board of a nonprofit has, unless you put other rules in place, quite a lot of power. They don’t really answer to anyone but themselves. And there’s ways in which that’s good, but what we’d really like is for the board of OpenAI to answer to the world as a whole, as much as that’s a practical thing.
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youtube.com
OpenAI
Their words
I kind of hate ads just as an aesthetic choice. I think ads needed to happen on the internet for a bunch of reasons, to get it going, but it’s a momentary industry. The world is richer now. I like that people pay for ChatGPT and know that the answers they’re getting are not influenced by advertisers.
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youtube.com
7 December 2023
First Amendment lawyer and former federal prosecutor; writes The Popehat Report and explains what the law actually says when people shout about free speech.
12 October 2023
Programmer and author of Modern C++ Design and The D Programming Language; a lead contributor to the D language.
Me: "Explain your thread hierarchy design like I'm 5." Coworker (without missing a beat): "So, Daddy needs to run some threads, and..." Related
Nothing matches. Show everything
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