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20 September
American open-source program lead working on WordPress; a WordPress core contributor and release lead who writes at jeffpaul.com.
19 September
Machine-learning researcher on open language models; writes the Interconnects newsletter and the RLHF Book, after leading post-training at Ai2.
Seems like one of the most important research problems for CS academics is llm-supervised peer review. If we don’t solve it the academic institutions are toast. It seems easier than building new institutions. LLMs Related
16 September
Professor of international affairs at Johns Hopkins SAIS and co-author, with Abraham Newman, of Underground Empire: How America Weaponized the World Economy.
I'm curious how this is going to go down. Collective wisdom among academics who study this stuff (unsurprising if you think about it) is that consumer facing businesses are a hell of a lot more vulnerable to brand damage and boycotts. Related
Co-founder of Superlogical, started in 2026 to build server-side terminal infrastructure; creator of Ghostty. Co-founded HashiCorp and created Vagrant and Terraform before that.
Their words
I should be able to pull you aside at any moment and ask you to explain any customer-facing system you've shipped. You should be able to clearly explain how it works and defend the decisions you made.
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@mitchellh on X x.com
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
Writer and climate campaigner; wrote The End of Nature in 1989, founded 350.org and Third Act, and writes The Crucial Years.
14 September
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.
Talk Your Book: Why Aren’t There More IPOs? On today's Animal Spirits Talk Your Book we speak to Christian Munafo from VanEck about AI IPOs, the trouble facing unicorn late stage growth companies, the liquidity problem for private market investors, secondary tran…
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12 September
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.
every model provider should learn from meta's pricing model for muse spark, with fully transparent subsidization labeled for the contributor tier stop doing "in order to use our model at a good price, you must use our harness which secretly collects your data and/or upload your codebase" meta clearly proved there's a way to collect training data without relying on a harness. just be transparent about when you collect data vs not, clearly communicate how much the data is worth, and give the choice to the user and i really don't need your harness. i already have SO MANY state of the art harness… Related
Sociologist at Duke University writing on markets, exchange and moral order, and on plain-text and data-visualisation tools for social science.
@RecDiffs @siracusa @hotdogsladies That Italian guy pronounced “Samhain" and “Siobhán” really quite well. If you want some cheap entertainment, try a perfectly normal Irish word such as “tábhachtach”, which means "important”. Like your Northern and Southern Italians, the dictionary link provides three pronunciations labeled “C”, “M”, “U”, for Connacht, Munster, and Ulster Irish, the three main provincial accents/dialects. (I'm from Munster so I pronounce it properly.) focloir.ie
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11 September
Writes Slow Boring, a near-daily newsletter on American politics and public policy; co-founded Vox in 2014 and left it in 2020.
7 September
Economic historian at Columbia; writes Chartbook on economics, geopolitics and history, and wrote Crashed and The Deluge.
Their words
People who act and speak in public as right-wing extremists and are labeled as such, establish a claim to authenticity.
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adamtooze.substack.com
4 September
General partner at Andreessen Horowitz and author of The Cold Start Problem. Previously led rider growth teams at Uber; has blogged on growth, network effects and marketplaces since 2007.
at work, makes sense you have agents effectively represent your CFO, CMO, CRO, CPO, etc. -- then supervised by a COO agent What's the equiv for your personal? - family - personal finance - health - leisure/travel ... what else? Related
1 September
Dutch bootstrapper who builds and runs their internet startups alone — Nomads.com, Remote OK, Hoodmaps, Photo AI and Interior AI — and has written about it at levels.io since 2013. Posts as @levelsio.
Their words
So indie hackers are pivoting toward content, audience and distribution to find some moat, essentially becoming influencers
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@levelsio on X x.com
12 August
Front-end developer and writer; co-founder of CodePen, founder of CSS-Tricks, and co-host of the ShopTalk Show podcast.
7 August
Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.
Their words
I really do think that having separate brand names for the consumer-facing models and the API models is needlessly confusing
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@simonw on X x.com
16 July
Software design writer and chief scientist at Thoughtworks; wrote Refactoring and Patterns of Enterprise Application Architecture.
14 July
Investing columnist for The Wall Street Journal and editor of the revised edition of Benjamin Graham's The Intelligent Investor.
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His narrative of the development of decision-making research over the past half-century is rich with personal anecdotes, gentle humor, continuous learning, and profound humility about how prone we all are to misjudge and misunderstand risks.
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jasonzweig.com
16 February
Writes Nintil, long researched essays on metascience, biology, economics and whatever he has decided to read the literature on.
A first glimpse of non-duality At a recent retreat, I found myself sitting on a cushion facing a wall while my meditation partner sat to my side, outside of my visual field and started reading to me "From You to Infinity", pointing-out instructions f…
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12 February
Software developer and entrepreneur; co-founder of Heroku, author of The Twelve-Factor App, and a researcher at Ink & Switch.
Two weeks of real-world use on Firehose, my email triage prototype. • 572 emails automatically labeled • 77% coverage (confident labels) • 98.2% accuracy on confident ✨ Related
23 January
Software developer and entrepreneur; co-founder of Heroku, author of The Twelve-Factor App, and a researcher at Ink & Switch.
26 September 2025
Reinforcement-learning researcher; co-wrote the field's standard textbook, wrote The Bitter Lesson, and shared the 2024 Turing Award.
Their words
squirrels don't go to school. Squirrels can learn all about the world. It's absolutely obvious I would say that um supervised learning doesn't happen in animals.
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youtube.com
19 September 2025
German writer and historian; wrote Blitzed, on drug use in Nazi Germany, and Tripped.
Their words
They make beer. They labeled the beer, and the temple that would make the beer, the beer would be attributed to that temple. It would be sold, so that temple rises in status, makes money. That's how hierarchies started up.
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youtube.com
8 August 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.
#IPAM (the institute for pure and applied mathematics) is facing a critical shortfall for operating expenses due to an unexpected suspension of NSF funding www.ipam.ucla.edu/news/nsf-fun... . Donations for emergency continuity of operations funding can be made at giving.ucla.edu
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30 April 2025
Founder and CEO of Epic Games, creator of the Unreal Engine and of Fortnite.
Their words
A lot of what they're facing isn't the challenge of learning a new art. It's friction introduced by failures of programming language design.
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youtube.com
7 July 2024
Machine-learning researcher; has written the Lil'Log survey posts on how a model technique works since 2017, and worked at OpenAI from 2018 to 2024, latterly leading its safety systems team.
8 April 2024
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.
Interesting comment about SGI leadership knowing about the problems they were facing and still being unable to come up with a way to handle them. Related
16 January 2024
Founder of Platformer, a newsletter on tech platforms and the people they affect, and co-host of the Hard Fork podcast at the New York Times.
Their words
Longtime tech reporter Matt Lynley offers an uncommonly technical assessment of new AI developments in his newsletter Supervised. Original reporting and a fast cadence help this one stand out from other AI newsletters.
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platformer.substack.com
24 October 2022
Mathematical biologist; Senior Lecturer in the Department of Mathematical Sciences at the University of Bath and author of The Maths of Life and Death and How to Expect the Unexpected.
9 August 2022
Research psychologist, instrumental in founding the field of naturalistic decision making; developed the recognition-primed decision model, the PreMortem method and the ShadowBox training method, and wrote Sources of Power and Seeing What Others Don't.
Their words
in 1985, um my colleagues and I came up with a description of how people actually make life-and-death decisions under extreme time pressure and certainty. And we called it the recognition prime decision model. And it's a blend of intuition plus analysis. And we found we studied firefighters. We found that most fire that accounted for almost 90% of the tough decisions firefighters made.
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25 January 2022
Co-founder of Netscape and of the venture firm Andreessen Horowitz. Argues at length for building things, mostly in short form.
Google
Their words
I I would I would not say that about Google. I would just say that more generally like that is the incumbent temptation. Um it is is basically is basically go from attack mode to defend mode, right? Go from being the pirate to being the navy.
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5 December 2021
Machine-learning researcher; has written the Lil'Log survey posts on how a model technique works since 2017, and worked at OpenAI from 2018 to 2024, latterly leading its safety systems team.
23 February 2020
Founder and president of the Roots of Progress Institute; writes the history and philosophy of progress, after a career as a software engineering manager and founder.
Their words
In any case, I think we need to not only look at the incentives facing scientists, but also those facing department heads, journals, and grant-making agencies.
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rootsofprogress.org
27 February 2019
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.
26 April 2018
Research scientist at Meta in Berlin working on multilingual models and evaluation; led the multilingual team at Cohere and was a research scientist at Google DeepMind before that.
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