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Economist; former chief economist of the International Monetary Fund.

• Ratings largely determine spreads. Yet, their construction remains largely a black box. Our paper assesses the relative importance of debt, deficits and country specific effects in the determination of these ratings. The evidence is at odds with a simple model of default: more importance of debt, less importance of forecast deficits, limited role of r-g, surprisingly large role of country effects. We are agnostic. The model may be too simple in some fundamental ways. Or the rating agencies may be using incorrect weights. Or a mix of the two... We hope the paper triggers a useful discussion.
  Quoting@int_mon_econSuper interesting! "Ratings, Debt, and Deficits: An Exploration" by Olivier J Blanchard, Daniel Leigh, and Prachi Mishra. "We look at the effects of debt and primary fiscal balances on sovereign credit ratings through the lens of a simple model. We find that the ratings differ from the implications…

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Criminal defence lawyer in New York; writes Simple Justice, mostly about how criminal law works in practice rather than in theory.

• Seaton: Friday Night Dance Fever

  My kids have a school dance tonight. It’s my son’s first of middle school and one of the last my daughter will see at this particular grade level. And of course, because I’m a sucker for this sort of thing, I’m chaperon…

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Statistician and software engineer who writes R packages for reproducible research and publishing, including knitr, bookdown and blogdown.

• yihui.org — Personal website and discussion board of Yihui Xie | 谢益辉

  personal websitesRelated

Web standards author and speaker; wrote the CSS: The Definitive Guide series and co-founded the An Event Apart conference.

• I made this floating-scrollbar #CSS demo as the result of a discussion we had in today’s Front-End Study Hall: https://codepen.io/editor/meyerweb/pen/01a0b0bd-0100-750d-8c24-745f6318896d I don’t know if it’s actually a good idea to do something like this (probably not), and it has a few styling limitations (no drop shadows or glows), but it was interesting to try to hit a design brief with clipping paths and the relatively new `shape()` value.

  CSSRelated

Security engineer; founder of Matasano Security and Latacora.

• I never remember to do this until the last minute but: ChiSec tonight, just nerds at a bar, Kaiser Tiger on Ogden/Randolph, 6:45PM or so. No RSVPs or anything, just show up.

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

• lot of the responses to me the last few days (as usual when i get surfaced in some parts of X) is that i'm anti-white. i'm really not, but if you think i am, you are either retarded or nazi-grade racist. which is fine. but then we know it's beyond discussion what needs to happen
  Quoting@SarahTheHaiderI spent the better part of a decade pushing back against anti-white racism, and suffered immensely for it, both professionally and personally. People tried to get me fired for standing up for the Covington Catholic kids! It was the right thing to do, and I would do it again. But I did expect that v…

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Economics professor at George Mason University and author of The Myth of the Rational Voter, Selfish Reasons to Have More Kids, The Case Against Education and Open Borders. Writes Bet On It.

• "Anyone want to do a late meet-up in Cincinnati tonight?"

  betonit.ai

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Author of Shape Up; formerly head of strategy at Basecamp, where he worked on product design for seventeen years; now runs Felt Presence.

• Watched a bit of @poteto + team on the Grok Bot stream today. Surprised by how normal the work is, but faster. So many micro judgements and steps that weren't automated. You could pause at many moments and be like "wait why that?" and it would lead to an interesting discussion.

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Writer and illustrator behind Wait But Why, a long-form blog of stick-figure-illustrated explainers on science, technology and society, and author of the book What's Our Problem?

• When a discussion becomes tribalized, the collective mind drops by 50 IQ points
  Quoting@micsolanamain thing preventing us from having a productive AI safety conversation is identity. too many AI people want to be seen as intelligent by AI safety giants. too many skeptics want to be seen as critical of EA. you have to actually think. that is the only way we'll get there.

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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…

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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.

• I'm going to the @webstandards free meetup tonight. https://londonwebstandards.org/events/lws-sept-2026/ Anyone fancy joining me for a bite to eat beforehand?

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American author of The Obstacle Is the Way, Ego Is the Enemy and Stillness Is the Key. Writes the Reading List book-recommendation email (started 2008) and owns The Painted Porch bookstore in Bastrop, Texas. Hosts The Daily Stoic podcast.

• The True Story That Reads Like a Thriller

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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.

• Another week at @oxide.computer has given us (yet) another example of the kinds of problems that very much require human engineering. Today, the team joins @ahl.bsky.social and me to regale us with the wild tale. Join us live, 5p Pacific, tonight!

  discord.gg

  Quoting@bcantrill.bsky.socialI am surely not alone in having family over the weekend hitting me up asking "should I be worried about extinction?" As a response, I have found that my anti-Doomer talk from @monktoberfest.com 2023 (three very long years ago!) remains current and accessible: www.youtube.com/watch?v=bQfJ...

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Economics writer; author of the Noahpinion newsletter.

• Two missing pieces in the AI safety discussion

  We need to make skeptics properly scared. And we need to make CHINA properly scared.

  AI alignmentChinaRelated

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.

• A Modest Proposal

  The announcement yesterday by OpenAI of a solution to the Millennium Prize Navier-Stokes problem has been causing a great deal of discussion among mathematicians. There’s a lot to be said about this story and its implic…

  OpenAIRelated

Pulitzer Prize-winning reporter and author of The Power of Habit, Smarter Faster Better and Supercommunicators. Writes for The New Yorker.

• Register for my FIRST EVER live workshop on how to become a Supercommunicator. This isn't a workshop on listening harder or being nicer. Instead, it's a specific, learnable move to connect with anyone - even the people you disagree with - that you can start using in your very next conversation. Tonight's dinner. Tomorrow's meeting. That call you've been dreading. I'm super excited about this and hope to see you there! Click the link below:

  charlesduhigg.com

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British designer and technologist; co-founder of the design studio BERG, which made Little Printer, and writer of the blog Interconnected.

• brb running a million simulated fruit flies in fruit fly utopia then going out and doing something really awful tonight so I'm still karmically balanced

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Economist; former chief economist of the International Monetary Fund.

• Separate and interesting discussion. True, the ECB (BDF) is slowly reducing its holdings of sovereign bonds, including French bonds (this is called QT, quantitative tightening). By selling those bonds, it decreases their price (not very much, but a bit) and thus increases the interest rate paid by the governments of the euro zone. This indeed makes things a bit harder for the government, who now pay more on their debt. Is the ECB doing this to spite governments, or to induce them to adjust? Emphatically not. It is doing this because it wants to reduce reserves (which is what happens when it s…
  Quoting@StefPalomba@ojblanchard1 1/ la BdF fait partie de l’Etat donc 2/ l’histoire ne tient pas sauf à imaginer que Pierre soit le gouv, 3/ si Paul, dont ce n’est pas le rôle, veut contrer la politique de Pierre, il remet les titres sur le marché, le taux d’intérêt grimpe, 4/ congeler a donc du sens pour Pierre

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Prime Minister of Canada since March 2025; formerly governor of the Bank of Canada and the Bank of England.

• Les travailleurs à Thunder Bay ont fabriqué les Hawker Hurricane. Aujourd’hui, ils fabriquent la prochaine génération des voitures de VIA Rail. Une discussion sur le prochain chapitre de l’histoire du Canada autour d'un café au Persian Man avec @bryanadams.

  English, from FrenchThe workers in Thunder Bay built the Hawker Hurricanes. Today, they are building the next generation of VIA Rail cars. A discussion about the next chapter of Canada's history over coffee at the Persian Man with @bryanadams.

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Statistician at Columbia; writes Statistical Modeling, Causal Inference, and Social Science, and wrote Bayesian Data Analysis.

• Does anyone have a lower Jordan3 number than Evans Boney? (And what about the Ariely-Armstrong-Enron number?)

  From last year’s post, What’s your Jordan3 number?: In the discussion of our post, Who has the lowest Erdos-Bacon-Epstein number? (the winner appears to be the mathematician Daniel Kleitman, my freshman-year academic ad…

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Statistician at Columbia; writes Statistical Modeling, Causal Inference, and Social Science, and wrote Bayesian Data Analysis.

• Update on U.S. government’s Soviet-style push for “gold standard science”

  We had a discussion last year: I got this email the other day from a journalist at a major news organization: I’m a science reporter from **, wondering if you’d have some time to talk/reflect on the Trump administration…

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Pulitzer Prize-winning reporter and author of The Power of Habit, Smarter Faster Better and Supercommunicators. Writes for The New Yorker.

• This is the fastest way to keep your relationships from falling apart during a difficult discussion. Stop trying to fix the problem and focus on matching their mood instead. Researchers call this the Matching Principle. Here’s how it works: 🧵

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Canadian cartoonist and writer: Dinosaur Comics, Marvel's The Unbeatable Squirrel Girl, and the choose-your-own-path books To Be or Not To Be and Romeo and/or Juliet.

• my kind thighs deserve - and crave - thigh fives

  archive - contact - sexy exciting merchandise - search - about ← previousSeptember 3rd, 2026next September 3rd, 2026: This comic was inspired by the kind eyes discussion in Swan Boy! You should be reading Swan Boy!…

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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, author and YouTuber covering Raspberry Pi, homelab hardware and Ansible automation. Author of Ansible for DevOps.

• Even without a total eclipse, tonight's lunar eclipse was a beautiful sight. #stlwx did not let us down, not a cloud in sight! #lunareclipse 📷 Sony A6700 w/ Celestron Nexstar 90GT

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Pulitzer Prize-winning reporter and author of The Power of Habit, Smarter Faster Better and Supercommunicators. Writes for The New Yorker.

• Register for my FIRST EVER live workshop on how to become a Supercommunicator. This isn't a workshop on listening harder or being nicer. Instead, it's a specific, learnable move to connect with anyone - even the people you disagree with - that you can start using in your very next conversation. Tonight's dinner. Tomorrow's meeting. That call you've been dreading. I'm super excited about this and hope to see you there! Click the link below:

  charlesduhigg.com

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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).

• A couple of days ago, I did a quick explainer on Claude’s new watermarking process and implementation. Since it’s such a popular topic and sparked such a lively discussion, I thought it might be interesting to go into a bit more detail when explaining how it works. So, instead of the usual text article, I recorded a little lecture on the topic (to change it up a bit from my usual articles). It ended up a bit longer than intended, but I hope it clarifies a lot of things: - Sampling the next token in an LLM and pseudorandom number generators - How watermarking relates to the regular LLM samplin…

  LLMsAnthropicRelated

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.

• With a new round of brouhaha over ADHD in the UK, seems like a good time to repost this discussion: What if obesity were invisible in the same way as ADHD is? ADHD is a construct that seems to encompass motivational and task initiation difficulties, executive function difficulties, and impulse control difficulties. And stimulants are attractive to people for a lot of reasons.

  psychiatrymargins.com

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Deep-learning researcher and Turing Award laureate; founder of the Mila institute.

• BlueskyVery insightful podcast discussion featuring Tristan Harris on how the unregulated race to develop AI risks harming us all, and on the need for greater international collaboration, safety standards, and public engagement around AI.

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• x.comVery insightful podcast discussion featuring @TristanHarris on how the unregulated race to develop AI risks harming us all, and on the need for greater international collaboration, safety standards, and public engagement around AI.

  youtube.com

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China economy researcher based in Beijing who writes on his personal blog about Chinese political economy, history, books and music.

• Real talk about the exchange rate

  (This post reproduces a thread I wrote on Twitter/X on July 29.) A lot of the discussion about the depreciation of/undervaluation of China’s real effective exchange rate takes for granted that this is about the currency…

  ChinaRelated

Writes Where's Your Ed At and hosts Better Offline; runs a tech PR firm, and argues at length that the AI business does not add up.

• Premium: AI Is Getting Way Too Expensive

  A great deal of the discussion of the so-called benefits or problems with AI comes down to the theoretical jobs that are (or are not) lost as a result of things LLMs can (or cannot do), or the equally theoretical produc…

  LLMsRelated

China economy researcher based in Beijing who writes on his personal blog about Chinese political economy, history, books and music.

• A lot of the discussion about the depreciation of/undervaluation of China's real effective exchange rate takes for granted that this is about the currency. After all, it's called the "exchange rate"! But it's actually not. Mostly, it's about prices. A rant 1/

  ChinaRelated

Software engineer, Wikipedia editor and crypto critic; writes Citation Needed and runs Web3 is Going Just Great.

• Mapping Trump’s crypto empire on Last Week Tonight

  A new Citation Needed data project maps the Trump family’s web of cryptocurrency ventures, which have been generating billions in income for the president.

  cryptoRelated

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.

• Zero Knowledge: Twenty Chapters In

  A month ago I opened up Zero Knowledge, the crypto-thriller I'm co-writing with my AI. There are twenty chapters now, a cast page, a plate for every chapter, and a pile of reader notes I'm grateful for.

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Free software developer; maintainer of sway, wlroots, aerc and scdoc, and founder of the SourceHut (sr.ht) software forge.

• AI in Linux

  The role of AI tools (LLMs, mainly) in Linux is under discussion, or it was, until Linus Torvalds “put his foot down” in support of the use of AI in Linux kernel development. I can identify two major ways in which AI is…

  LinuxLLMsRelated

Labour politician. Prime Minister of the United Kingdom from July 2024 to June 2026, and MP for Holborn and St Pancras from 2015 until standing down in 2026. Director of Public Prosecutions before entering Parliament.

• Great result tonight @England. You’ve done us proud.
  Quoting@EnglandThe #ThreeLions' best-ever World Cup finish on foreign soil 👊

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Labour politician. Prime Minister of the United Kingdom from July 2024 to June 2026, and MP for Holborn and St Pancras from 2015 until standing down in 2026. Director of Public Prosecutions before entering Parliament.

• Gutted. Tonight wasn’t the result we all hoped for, but this England team has given it their all. The passion and energy they’ve shown representing the badge has made us all proud.

  energyRelated

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.

• Read Zero Knowledge As I Write It

  Zero Knowledge, the crypto-thriller I'm co-writing with my AI, now has a home at zeroknowledge.ink. Six chapters are live, you can mark up any sentence, and the whole thing is being built in the open.

  cryptoRelated

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.

• Writing a Novel with Phin Argofy

  I've written nine non-fiction books and have no idea if I can write a novel. I'm trying anyway: a crypto-thriller called Zero Knowledge, co-written with my AI, Phin Argofy.

  cryptoRelated

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.

• Crema is rubbish, 2026 edition

      In 2009, James Hoffmann famously stated “crema is rubbish.” His comments generated heaps of discussion for many years, but somehow, they didn’t have much lasting impact on how people serve or enjoy espress…

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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.

• The Regulatory Frontier

  Part 3 of our four-part discussion with three frontier founders: Guillermo Rauch (Vercel), Blake Scholl (Boom Supersonic), and Max Hodak (Science Corp). Also see Part 1: Waste Tokens, Save Time, Part 2: Vibe Coding Hard…

  startupsRelated

Writes jvns.ca, turning "hard and scary" topics — networking, debugging, Linux internals — into plain explanations and hand-drawn comics. Publishes Wizard Zines, illustrated programming zines. Software developer based in Montreal.

• links to css colour palettes jvns.ca/blog/2026/05... (from a discussion over on mastodon)

  CSSRelated

Free software developer; maintainer of sway, wlroots, aerc and scdoc, and founder of the SourceHut (sr.ht) software forge.

• Addressing the harassment

  Kiwi Farms is a web forum that facilitates the discussion and harassment of online figures and communities. Their targets are often subject to organized group trolling and stalking, as well as doxing and real-life haras…

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

• New Book: The Stolguard Incident

  My new sci fi thriller, The Stolguard Incident, is now available! It can be purchased in print, ebook, or audio versions on Amazon here. You can also find the print version on Barnes & Noble here, or you may be able to…

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Maths educator; writes Mathworlds on how mathematics is taught and why so much of the technology sold to schools does not help.

• How We Built Discussion Moments

  And how we decided NOT to build it.

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Writer, photographer and software maker based in Japan; publishes long-form essays, walking newsletters and self-made books at craigmod.com.

• tonight's TBOT event with motoyuki shibata was sold out, but I added a few more ticket spots; 19:30 @ dandelion chocolate Kuramae:

  tbot.peatix.com

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Maths educator; writes Mathworlds on how mathematics is taught and why so much of the technology sold to schools does not help.

• “Discussion Moments” Is Our AI Battery for the Social Classroom

  This is one of the best things I have ever worked on.

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President of the United States, the 45th from 2017 to 2021 and, as of 2026, the 47th; before politics a New York property developer who ran the Trump Organization, and the host of The Apprentice from 2004 to 2015.

• THE TRUMP KENNEDY CENTER HONORS will be broadcast tonight, on CBS, and Stream on Paramount+. Tune in at 8 P.M. EST! At the request of the Board, and just about everybody else in America, I am hosting the event. Tell me what you think of my “Master of Ceremony” abilities. If really good, would you like me to leave the Presidency in order to make “hosting” a full time job? We will be honoring true GREATS in the History of Entertainment: Sylvester Stallone, Michael Crawford, KISS, George Strait, and Gloria Gaynor.

  AmericaRelated

British senior engineering manager at Netlify, previously a team lead at the BBC; writes about JavaScript testing, chatbots and serverless at marclittlemore.com.

• MastodonMy son is coming home from uni tonight for Christmas. This is making me very happy. 🎄😍

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• BlueskyMy son is coming home from uni tonight for Christmas. This is making me very happy. 🎄😍

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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.

• A new paper with Bogdan Georgiev, Javier Gomez-Serrano, and Adam Zsolt Wagner: "Mathematical exploration and discovery at scale" arxiv.org/abs/2511.02864. Further discussion is at

  terrytao.wordpress.com

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Writer and researcher on China, technology and industry; author of Breakneck, research fellow at Stanford, known for a widely read annual letter.

• For friends in DC, I’ll be speaking tonight at an IFP/FAI event hosted by @AlecStapp and @hamandcheese https://t.co/48qiMEW8mG tomorrow at Politics and Prose Wharf with @DKThomp https://t.co/QjrL5urP3y and on Thursday at JF Books in Dupont Circle

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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.

• I have just launched a "Lean companion" to my textbook "Analysis I": github.com/teorth/estim... . This gives a Lean translation (or paraphrasing) of the various definitions, theorems, and exercises in the textbook into Lean. Further discussion at

  terrytao.wordpress.com

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Co-founder and chief science officer of Hugging Face; writes about open models and where he thinks the field is wrong.

• I shared a controversial take the other day at an event and I decided to write it down in a longer format: I’m afraid AI won't give us a "compressed 21st century" Here: thomwolf.io/blog/scienti... It's an extension of this interview discussion from the AI summit:

  youtu.be

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Writer on the intersection of technology and finance. Author of the Bits about Money newsletter and host of the Complex Systems podcast; previously at Stripe.

• Debanking (and Debunking?)

  Crypto advocates kicked off a recent, somewhat politicized, discussion of debanking. Strap in for scintillating banking compliance trivia.

  cryptoRelated

Engineering leader and writer on web operations and resilience engineering; formerly SVP of Technical Operations at Etsy and co-author of Web Operations.

• "...the process is inherently a social one, people learn how the organization responds to events, what tensions exist (between individuals, teams, management, etc.), which topics are acceptable for discussion and which ones are forbidden, how power dynamics play out..." 👇
  Quoting@AdaptiveCLabs"It is not uncommon for high-consequence events to be handled mostly in-camera and for the open, formal incident review to take on the flavor of 'incident theater'." https://t.co/PUWHitzBIJ #learningfromincidents #incidentanalysis

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Family therapist and founder of Relational Life Therapy. Author of I Don't Want to Talk About It, How Can I Get Through to You? and Us; argues that Western individualism is what makes couples' work hard.

• [Video] Patriarchy Now: Watch the webinar replay

  Thank you to everyone who has stepped forward to engage in this dynamic topic with me through your emails, questions, and listening in for the live call. We had an excellent discussion today, and I’d like to share the r…

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Researcher on distributed systems and local-first software at the University of Cambridge; wrote Designing Data-Intensive Applications.

• Decentralised content moderation

  Who is doing interesting work on decentralised content moderation? With Donald Trump suspended from Twitter and Facebook, and Parler kicked off AWS, there is renewed discussion about what sort of speech is acceptable on…

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Author and clean-energy analyst who writes on solar cost curves.

• APEX Wins the Philip K. Dick Award!

  Tonight, in Seattle, I was in the crowd when my novel Apex won the Philip.

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Interpretability researcher at Anthropic, which he co-founded; before that at OpenAI and Google Brain, where he wrote the explanations of neural networks most people learned them from.

• NN-Group-1-Code — Code for a discussion group I'm running

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