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

• I was happy to take the stage today at ALL IN for a keynote on Engineering honesty and reliability for safer AI to discuss our research agenda and recent funding 🇨🇦🇩🇪. As frontier models become more capable, we urgently need both societal governance and robust technical guardrails. At @LawZero_, we are actively working on solutions to ensure AI systems remain safely aligned with human interests. Thank you to @LarissaHolzki for a great conversation.

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Creator of Ruby on Rails, CTO of 37signals, and creator of Omarchy.

• Another week, another haul for Omarchy! Thank you so much to @briancartmell for joining as a Distinguished Patron with $100,000, to @americancloudco for the $25,000, and to all open patrons for DOUBLING their donations to $120,000!!

  omarchy.org

  OmarchyRelated

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.

• Wow! These new folding phones are amazing! Thank you Apple for inventing the future!

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Prime Minister of the United Kingdom since July 2026 and leader of the Labour Party. MP for Makerfield since a by-election in June 2026; Mayor of Greater Manchester from 2017 before that.

• We are grateful to everyone who has shared a kind message about my dad, particularly the leaders of the other parties. My family and I have been helped though this difficult time by people’s warmth and compassion. It means a great deal to us and we wanted to say thank you.

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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 47.1: Thursday Want to see what happens when someone famous calls you at 2am with a favor you can't check? Oh, and what it costs to tell a friend you gave her name away... "Then stop answering your phone. I mean that. Thank you for picking up."

  zeroknowledge.ink

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

• Thank you Jamey for speaking to the students today! Fantastic talk on design + building a business from X
  Quoting@jameygannonhad the honor of being the first ever speaker for the first ever Founders School cohort at @Alphaschool NYC! talked a lot about brand design, image gen, and building a personal brand on X thank you to @CameronSorsby for the invite 🙏

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Australian moral philosopher, Professor of Bioethics emeritus at Princeton University; author of Animal Liberation, Practical Ethics and The Life You Can Save.

• For the August/September issue of Forbes Australia, I was invited to answer The Last Word, a series of questions that range from the serious to the personal. Thank you to Forbes Australia and Sarah O’Carroll for the feature. #PeterSinger #ForbesAustralia #Philosophy #Ethics #EffectiveAltruism

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Writer of Lenny's Newsletter and host of Lenny's Podcast, covering product, growth and career in tech. Previously a product lead at Airbnb. Also an angel investor and advisor.

• Still processing from yesterday's event (one of the most meaningful days of my life)— more to come—but a few quick things for now: 1. Thank you to everyone who came. You are what made it special. 2. There's so much need for IRL community. I've rarely felt this kind of pull for anything I've done. Wow. 3. All of the talks will be posted to my YT channel in the coming weeks. Get excited. 4. An unbelievable thank-you to the @Stripe team for helping me put this event on. It takes something special to create an event with 1,000+ PMs that has such great vibes. If you think they're great at payments…

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Programmer, musician and author of The Passionate Programmer; organised RubyConf and RailsConf and has worked as a CTO.

• The @bsky.app starter pack thing is such a great example of making an open product/ecosystem feature out of someone else's closed, extractive bullshit. Thank you to whoever designed and implemented it.

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American author of speculative fiction, including The Paper Menagerie and the Dandelion Dynasty series, and translator of Chinese science fiction. Also a programmer and lawyer.

• Thank you to @fondalee.bsky.social, @harvardbookstore.bsky.social, and everyone who came to celebrate the launch of The Passing of the Dragon with me! It was an unforgettable night. A limited number of signed copies are available at the Harvard Book Store for anyone who couldn’t make it.

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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.

• Hi guys, I’m going to start a company. It will be important. But it will also suck. It will be valuable. But will leave death and destruction in its wake. It will be transformational. But it will destroy society as we know it. So bottom line, please buy my company’s product. You can count on us! Thank you.

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British historian, translator and broadcaster; author of Rubicon and Dominion, and co-host of The Rest Is History podcast.

• There’s nowhere better than what was once the kingdom of Northumbria to go on a pilgrimage - so thank you, @durhamcathedral (where both Cuthbert & Bede lie buried), for making use of an ancient chapel in such an imaginative & moving way.

  bbc.co.uk

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Co-founder and CEO of OpenAI; previously president of Y Combinator.

• GPT-6 Astra is now available to all Pro, Enterprise, and Business Premium users in Work/Codex, and is available in the API. We will start rollout to Plus and Business users next. Thank you for the patience.

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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.

• perhaps there are but a few foodstuffs improved by being transformed into a honey slurry and then baked. sadly it's impossible to know

  archive - contact - sexy exciting merchandise - search - about ← previousSeptember 2nd, 2026next September 2nd, 2026: I had a great time last weekend at GalaxyCon San Jose - thank you to everyone who came out! I ho…

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Belgian engineering lead, Microsoft MVP and public speaker. Creator of Front Matter, a headless CMS extension for Visual Studio Code.

• Six and a half years. 150+ designs. 7.500+ stickers on laptops around the world. 💜 We're closing PYOD. Thank you for every order, every photo, every idea. If you go to our site, you can order the free thank-you pack. #stickers

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Co-founder and CTO of Linear; previously an engineer at Uber.

• A humble thank you for the ride so far to all of our customers, employees and investors.
  Quoting@linearToday we're announcing our second employee tender offer. We passed $100m ARR earlier this year and now have more than 40,000 paying customers. The tender lets our teammates participate in that success at a $2.5B valuation:

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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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Zurich-based value investor who ran the Aquamarine Fund from 1997 to 2025 and wrote The Education of a Value Investor. He hosts the VALUEx gathering in Klosters and publishes a podcast and newsletter.

• A government confident it's policy should be able to answer basic questions: is Norway opposing settlements—or making Jewish presence itself the test? The Deputy Foreign Minister’s refusal to answer says it all. Thank you @HausdorffMedia, @akravik79 you are an amateur
  Quoting@HausdorffMediaA concerning conversation with the Deputy Foreign Minister of Norway Andreas Kravik @akravik79, about Norway’s proposed trade ban singling out Jews. He wouldn’t answer the direct question about whether Jewish-run businesses employing local Arabs would be exempt, but he was clear that the intention…

  governmentRelated

American author of speculative fiction, including The Paper Menagerie and the Dandelion Dynasty series, and translator of Chinese science fiction. Also a programmer and lawyer.

• The wonderful @fondalee.bsky.social will join me at the Brattle Theatre on September 8, 2026, at 6:00 PM to help me celebrate THE PASSING OF THE DRAGON AND OTHER STORIES. Thank you to the @harvardbookstore.bsky.social for sponsoring the event. Tickets:

  eventbrite.com

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Prime Minister of the United Kingdom since July 2026 and leader of the Labour Party. MP for Makerfield since a by-election in June 2026; Mayor of Greater Manchester from 2017 before that.

• Heartbroken to hear my friend Sir Billy Boston has died. Billy was one of the greatest Rugby League players of all time but also one of the kindest and most down-to-earth people you could ever wish to meet. He always had time for people and gave so much to back to his adopted home, Wigan. I will miss him greatly and am thinking today of Billy’s family, still grieving the recent loss of his beloved wife Joan. A giant of a man in every way. Thank you, Billy, and rest in peace.

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Librarian, technology instructor and writer in rural Vermont; longtime community manager at MetaFilter and author of a book on the digital divide.

• I have one of those 3/4-sized Galaga games in my house (thank you FB marketplace) and I play a game every morning. I'm not that good but it gets my brain going and if I live to be 104 I want to attribute my longevity to playing Galaga every morning.

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Writer and consultant on formal methods and software correctness; author of Practical TLA+ and Logic for Programmers.

• Vim wants you to control, VSCode wants you to consume

  Newsletter updates were sporadic in July because of two weddings, two conferences (with two different talks!), and finishing Logic for Programmers. Huge thank you to everybody who bought a copy, as well as for your pati…

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Zurich-based value investor who ran the Aquamarine Fund from 1997 to 2025 and wrote The Education of a Value Investor. He hosts the VALUEx gathering in Klosters and publishes a podcast and newsletter.

• Amanda Knox - what you are doing with your life, despite the injustices foisted upon you is so courageous. Thank you for showing rest of us how it is done. h/t @DavidDeutschOxf @amandaknox

  open.substack.com

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Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.

• This is such a cool list, published by Brex, based on startups' newsletter spending patterns. The Pragmatic Engineer one of the most frequently expensed newsletters, and it was, indeed, massive growth within startups over the last year: Thank you to everyone reading and supporting!

  startupsRelated

Co-founder of WordPress and founder of Automattic; blogs at ma.tt.

• OmFest Registration

  Thank you to everyone who expressed interest in shaping OmFest. We’re still working out some details, but we’ve got a Luma registration page for the event up. Please join on September 29, 2026, Om’s 60th birth anniversa…

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Writer and researcher, founder of New Science; writes essays on science funding, sleep research, productivity and ambition at guzey.com.

• Drove from NY to DC and back a few days ago. Thank you to everyone who helped me learn to drive, especially @kirankling @yourboyJoeHill @kliu128 (!!!) (pictured: me + the white house)
  Quoting@alexeyguzeytook the driving knowledge test, now need to learn how to actually drive a car. if anyone would be willing to spend a few hours somewhere in the bay area teaching me, please let me know!

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

• as software engineers most of us are sitting in an office chair all day we spend hours staring at a screen, not moving more then our fingers or wrists sometimes we lock in and it feels like there are only occasional windows to move if so, start simple. take a screen break and do: - a 5-min walk around your house - 25 push-ups - 25 jumping jacks anything to break the chain of not moving trust me, you'll thank me in a year

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Polyglot; founded Fluent in 3 Months and argues for speaking from day one rather than waiting until you are ready.

• “Thank You” in Chinese: 谢谢 and 25 More Ways to Say It

  A complete guide to saying thank you in Mandarin Chinese, covering the core phrase 谢谢 (xièxie), its tones, and why getting them right matters. Includes a full politeness ladder from casual to formal, how to respond when…

  ChinaRelated

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.

• I am proud of everything we have achieved together. To everyone who has supported this Labour government: thank you.

  governmentRelated

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.

• ShortKeir Starmer says thank you to the people who helped to deliver change

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Professor of international affairs at Johns Hopkins SAIS and co-author, with Abraham Newman, of Underground Empire: How America Weaponized the World Economy.

• The Supreme Court is corrupting American democracy

  One cannot hope to bribe or twist/ (thank God!) the U.S. chief jurist

  AmericaRelated

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.

• Just Keep Buying has now sold over 500,000 copies worldwide. Never in my wildest dreams did I think this would happen when I started writing it. For those who read, shared, or told a friend to buy it, I can't thank you enough.

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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.

• This finally happened. Thank you to all those who helped.

  worldrecordsindia.com

  Quoting@Sanjay__BakshiHelp needed! A friend is about to complete 250 episodes on a single film music composer, creating a detailed archive of stories behind the music. I feel this kind of sustained, single-subject series is rare. Looking to connect with someone from Guinness World Records (India) or an expert who unders…

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Writer and podcaster; co-author of Abundance with Ezra Klein, a staff writer at The Atlantic from 2008 to 2025, and host of the Plain English podcast.

• The Derek Thompson Substack Turns 1! Here's How the Newsletter Is Doing

  Thank you for being a paid subscriber! And please use this birthday to tell me what you want this newsletter to grow into

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Writer and former Substack product manager; publishes essays and interviews on technology, culture and China at jasmi.news.

• thank you substack & sana & odd lots & pangram & new york city !!! back 🔜

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Computer scientist and director of the MIT Digital Currency Initiative; her research covers distributed systems, databases and digital currency.

• This was a really interesting, wide-ranging conversation. Thank you to @mariekeflament and @Nicolas_Colin for having me!
  Quoting@mariekeflamentNew podcast on @CurrenPower: we sat down with @neha for an in-depth conversation on CBDCs, Stablecoins, Privacy, Quantum and Geopolitics outlook. Neha has a unique ability to explain very clearly complex concepts - a must listen!

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Cyborg anthropologist and UX designer; author of Calm Technology and co-founder of the geolocation startup Geoloqi.

• It was a great honor to speak at @AXIS_Tokyo and provide a workshop on #CalmTech. Thank you to everyone for a meaningful experience.
  Quoting@nobi3月4日に AXIS Gallery @AXIS_Tokyo で行われた Amber Case @caseorganic を招いての #CalmTech イベントレポートが @mui_labo のページに掲載されていました： https://t.co/tLO4IkEkVg 3月末には掲載されていたようですが今頃気がつきました💦

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Environmental writer and campaigner; author of Six Degrees, The God Species, Seeds of Science and Our Final Warning.

• Back in the 19thC people used to boil penguins, harpoon whales and club seals to death. Thank goodness the days of exploitation are over. Except they aren't - trawlers took 620k tonnes of krill from the Antarctic last year, competing with whales for food.

  marklynas.substack.com

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Co-founder and CTO of Honeycomb; previously an infrastructure engineer at Parse, Facebook and Linden Lab, and co-author of Observability Engineering.

• First I wrote the wrong book, then I wrote the right book

  I'm not sure whether to say "thank you" or "HOW COULD YOU DO THIS TO ME", but this one goes out to all the people who sent me advice on buying software last fall.

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Co-founder of Microsoft and of the Gates Foundation. Writes Gates Notes on global health, energy and climate, and on whatever they have been reading.

• Thank you for the warm welcome, @ncbn. It’s exciting to witness Andhra Pradesh’s growth being accelerated through AI, technology, and innovations across health, agriculture & education.
  Quoting@ncbnTechnology must serve humanity. Our Real Time Governance System (RTGS) is transforming lives across Andhra Pradesh - delivering speed in governance & ease of doing business in real time. Grateful for my 1990s meeting with Mr. Bill Gates, which inspired this tech-driven citizen empowerment. Delighte…

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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.

• Thank you! ❤️
  Quoting@readcurious.xyzOur book of the month for February is "Things Become Other Things: A Walking Memoir" by @craigmod.com—a superb, closely observed meditation on life, tradition, friendship and loss while hiking the ancient pilgrim trails of Japan's remote Kii peninsula. newsletter.readcurious.xyz/p/cur022-cra...

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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.

• To all Airlines, Pilots, Drug Dealers, and Human Traffickers, please consider THE AIRSPACE ABOVE AND SURROUNDING VENEZUELA TO BE CLOSED IN ITS ENTIRETY. Thank you for your attention to this matter! PRESIDENT DONALD J. TRUMP

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Release engineering manager at the Wikimedia Foundation. Keeps a public log at tylercipriani.com of every book he reads, with a rating and notes.

• ``` GET /about/ HTTP/1.1" 200 6659 "-" "Mozilla/5.0 (compatible; Thinkbot/0.5.8; +In_the_test_phase,_if_the_Thinkbot_brings_you_trouble,_please_block_its_IP_address._Thank_you.)" ``` hrm, "block its IP address"? ``` $ sudo awk '/Thinkbot/ {print "IP:",$2}' /var/log/apache2/other_vhosts_access.log | sort | uniq | wc -l 60 ``` Hosting things on the internet in 2025 is stupid.

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Co-founder of Panic, the Portland software company behind Transmit, Coda, Nova and the Playdate handheld console.

• We're also announcing today that "Ratcheteer", a fan favorite from Playdate Season 1, is coming soon to your computer as "Ratcheteer DX", complete with COLOR GRAPHICS. Thank you for supporting our weird little games. I hope you have a good day.

  store.steampowered.com

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Mathematician and maker of the 3Blue1Brown YouTube channel, which explains mathematics through animation. Creator of the open-source Manim animation library and founder of the Summer of Math Exposition.

• Welp, somewhat embarrassingly, yesterday this account was briefly compromised and someone posing as me promoted a crypto project supposedly "tokenizing" manim. Thank you to those of you who quickly flagged it as spam and alerted me to the problem. For future reference, it's a safe bet that you'll never see me creating and promoting a meme coin.

  cryptoRelated

Co-founder of Microsoft and of the Gates Foundation. Writes Gates Notes on global health, energy and climate, and on whatever they have been reading.

• It’s always an honor to partner with incredible Nigerian healthcare workers, midwives, researchers, innovators, and changemakers—like @NcpwdOfficial and Wheelchairs for Nigeria's Chief Ayuba Gufwanm, a polio survivor who has spent his life raising awareness, delivering mobility aids, and championing vaccines. People like him make me hopeful that, despite the odds and obstacles, we can #EndPolio for good. Thank you H.E. President @officialABAT for this recognition.
  Quoting@officialABATToday, I conferred the Nigerian National Honour of Commander of the Federal Republic (CFR) on Mr Bill Gates @BillGates in recognition of his decades-long commitment to improving lives through interventions in global health & polio eradication, education, digital innovation, and agricultural develop…

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Co-founder of Microsoft and of the Gates Foundation. Writes Gates Notes on global health, energy and climate, and on whatever they have been reading.

• Thank you for the warm welcome and honor, Prime Minister @AbiyAhmedAli, @PMEthiopia. The @GatesFoundation has partnered with Ethiopia for over two decades—and our commitment to driving progress across the country is as strong as ever.
  Quoting@AbiyAhmedAliTonight, we’re celebrating @BillGates and the foundation he established, which has transformed countless lives around the world and in Ethiopia over the past 25 years.

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Programmer and teacher; writes on software, learning and the web, and makes the Coding Blocks video course.

• Thank you Google for breaking my YouTube addiction

  Over the past few years, Google has done a surprisingly great job of making YouTube less interesting and engaging — and in turn, less addictive. Maybe they've got some ethical guidelines in the top management now? If so…

  GoogleAddictionRelated

Co-founder of Ximian and Xamarin; CEO of GitHub from 2018 to 2021; now an independent investor and funder of open technical projects, including the Vesuvius Challenge to read the Herculaneum Papyri.

• Amazingly, this looks like it might be solved, thanks to a lot of help from some wonderful people on X. 🤞 Thank you!
  Quoting@natfriedmanAnyone have a mexico government connection? A project I’m supporting to LIDAR the jungle there just got rejected by some bureaucrat. Please DM if you can help. Thanks!

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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.

• Thank you! See you guys in Singapore next week 🥳
  Quoting@iclr_confTest of Time Winner Adam: A Method for Stochastic Optimization Diederik P. Kingma, Jimmy Ba Adam revolutionized neural network training, enabling significantly faster convergence and more stable training across a wide variety of architectures and tasks.

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

• Twitter/X Restored

  My Twitter/X account was compromised from February 26th to March 3rd, but I confirm that I’ve regained control of it now. Thank you to everyone who helped make it happen. Fortunately, I still had access to Nostr during…

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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.

• Thanks to the ICLR Award Committee! And thank you for the kind words, Max! You were the perfect Ph.D. advisor and collaborator, kind and inspiring. I really couldn't have wished for better.
  Quoting@wellingmaxThank you Yisong and the Award Committee for choosing the VAE for the Test of Time award. I like to congratulate Durk who was my first (brilliant) student when moving back to the Netherlands and who is the main architect of the VAE. It was absolutely fantastic working with him.

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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.

• Thinking about High-Quality Human Data

  [Special thank you to Ian Kivlichan for many useful pointers (E.g. the 100+ year old Nature paper “Vox populi”) and nice feedback. 🙏 ] High-quality data is the fuel for modern data deep learning model train…

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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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Swedish software developer writing about tooling, working from home and running a software business at seastone.io.

• I had an amazing call with @ashmaurya yesterday and today my @Todoist is already full of next-steps. :) Thank you so much for all the insights!

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