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Founder of the Free Software Movement and the GNU Project, original author of GNU Emacs and the GNU General Public License, and long-time president of the Free Software Foundation.

• Mastodon[1/2] https://www.theguardian.com/us-news/2026/aug/24/indigenous-rock-art-border-wall The intended Texas border wall, purely for completeness' sake, will extend over an area of cliffs and come damagingly close to ancient rock art. I think it is an exaggeration to compare rock art to "books". To suppose that this rock art image has a precise message encoded in little details, as writing would have, has no factual basis that I know of. Nonetheless, ancient rock art is precious, because it

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• SiteIntended Texas border wall

  The intended Texas border wall, purely for completeness' sake, will extend over an area of cliffs and come damagingly close to ancient rock art. I think it is an exaggeration to compare rock art to "books". To suppose t…

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Co-founder of Y Combinator and Viaweb; essayist at paulgraham.com.

• In Texas they found 117 potential noncitizens out of 18 million voters. That's .00065%. And that's an an upper bound; these are merely "potential" noncitizens. This is a fake problem.

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Writer and former McKinsey/BCG strategy consultant; author of The Pathless Path and Good Work, about leaving the default career track. Publishes the Boundless newsletter and podcast.

• there is this weird fixation with hanging out with other similarly successful people. Nothing could be more boring to hang out with people so narrowly obsessed with a small sliver of life.

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

• Should I Ask for Sponsorship?

  For two and a half years, from January 2024 to June 2026, Posit paid me as a contractor to maintain the R Markdown ecosystem (rmarkdown, knitr, bookdown, blogdown, pagedown, etc.). That contract was terminated in June t…

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

• We want to celebrate with people using GPT-6. We did this for GPT-5.5 and it was really fun. We’re getting together in SF on September 16 to talk about the model, what we should build next, and mostly just to hang out. Apply by Sep 10:

  gpt6-launch-event.openai.chatgpt.site

  OpenAIRelated

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

• Rebuilding a 1995 GPS Time Server so I don't get Telstra'd

  In June I purchased this TrueTime XL-AK time server, so I could learn more of the history of GPS-based time. I received it on June 22, and just 16 days later a similar GPS time server took down Australia's cell service…

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Software engineer in Chicago; writes the cassidoo.co blog and a weekly developer newsletter.

• BlueskyStreaming now on Twitch and YouTube some coworking if you wanna hang out!

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• x.comStreaming now on Twitch and YouTube some coworking if you wanna hang out!

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Clinical psychologist, EMDR consultant and yoga teacher in Boulder, Colorado. Author of The Complex PTSD Workbook and EMDR Therapy and Somatic Psychology; writes on trauma, attachment and the nervous system.

• Join me next summer for a continuing education retreat in Ireland! 🏰✨ Join me at historic Kilkea Castle to prevent burnout, deepen your somatic & EMDR practice, and reconnect with your passion. 📅 June 22–25, 2027 🎓 Up to 12 CEs 🔗

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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 20.1: The Long Drive Three founders Seth backed have gone dark. One texted him at 3 a.m. and stopped answering. He rehearses what he will say if Marcus picks up. "You have twenty seconds to tell me if anybody is dead. Then you can hang up."

  zeroknowledge.ink

  startupsRelated

Writer of the 25iq blog, where he distils "a dozen things I've learned" from investors, founders and thinkers. Author of Charlie Munger: The Complete Investor and A Dozen Lessons for Entrepreneurs.

• Catching Dungeness crabs is like Texas Holdem in that you keep the best 5. I "discarded" ~ 50 crabs today. I haven't caught an invasive Green crab yet. Dungeness crabs with a >2 inch carapace can defeat a Green crab (if the Dungeness is not molting).

  mynorthwest.com

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

• it feels like every day the bar is getting lower and lower people are - too busy to work on their health problems - too tired to hang out - too overwhelmed to respond - too trapped in the black mirror - too distracted to do deep work dont get caught in these loops

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Forecaster, founder of FiveThirtyEight, author of The Signal and the Noise and On the Edge. Writes Silver Bulletin, where the predictions come with numbers and the numbers are later checked against what happened.

• Do I really buy that Texas could turn blue?

  Some of the skepticism about James Talarico’s chances amounts to superstition. But I have one lingering concern about our forecast in Texas.

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Researcher and science writer. Co-founder and editor at Works in Progress magazine, formerly a researcher at Our World in Data, and author of the Scientific Discovery newsletter on science, global health and medical innovation.

• (Almost) everything you'd want to know about cancer vaccines can be heard in this great @owl_posting podcast episode from June, feat @iskander @BenjaminGVincen. Highly recommended!

  owlposting.com

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

• In order for a friendship to be maintained, one person needs to reach out to another person to hang. If neither does that, then the friendship gradually dissolves.

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

• Time to head to Texas or Nevada. Staying is adding unnecessary risks for your shareholders. You should act in your shareholders best interest and flee Delaware. Delaware is no longer consistent. They are targeting companies they don't like.
  Quoting@LeaveDelaware🚨 JUST IN: DoorDash is leaving Delaware for Nevada. Stockholders controlling 54.2% of DoorDash’s voting power have approved the reincorporation, including cofounders Tony Xu, Andy Fang and Stanley Tang. The board unanimously backed the move. DoorDash pointed directly at Delaware’s “surprising” cou…

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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.

• This Is Why We Opened A Banned Books Library (In Rural Texas)

  One of my kids’ favorite books is I Need a New Butt. I don’t want to spoil the plot, but he needs a new butt not for any culture-war reason but because his has a crack in it. That’s funny, especially if you’re four or f…

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Product discovery coach; wrote Continuous Discovery Habits and writes Product Talk.

• The Call to Adventure

  In June, I returned to Product at Heart in Hamburg, Germany. I love this event. Arne Kittler and Petra Wille do such an amazing job of curating a thoughtful lineup of speakers and they obsess over the attendee experienc…

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Web designer; founder of SimpleBits, co-founder of Dribbble, and author of Bulletproof Web Design and Handcrafted CSS.

• MastodonThe Serif Tee. New in the shop! The perfect ice-breaker to wear at your next office mixer. People that get it? Those are the folks you can hang with.

  simplebits.shop

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• BlueskyThe Serif Tee. New in the shop! The perfect ice-breaker to wear at your next office mixer. People that get it? Those are the folks you can hang with.

  simplebits.shop

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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 spent the last academic year (Sept 25-June 26) on sabbatical, looking after my baby granddaughter, and I loved every moment. I missed teaching, though, and I will be back in the classroom in spring 2027. In the meantime, I will be on the road in Latin America, Europe and Asia in 2026.

  bit.ly

  EuropeAmericaRelated

Technologist and entrepreneur; former CTO of Threadless and chief technology officer of the 2012 Obama re-election campaign.

• BlueskyI built an agent palace. a place where agents can hang out with other agents. I added a few agents (one sol, and one fable) to a room in the palace. They were hanging out, and I suggested an idea for them to build ("a watercolor for agents to gossip around").

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• x.comI built an agent palace. a place where agents can hang out with other agents. I added a few agents (one sol, and one fable) to a room in the palace. They were hanging out, and I suggested an idea for them to build ("a watercolor for agents to gossip around"). They brainstormed and decided it was a good idea. I added a Claude code agent running superpowers. I told the other two agents that they could give tasks to the dev, and told the dev agent that they were supposed to do the tasks. Then I went to bed. i woke up to a go cli that allows the agents to share gossip.

  AnthropicRelated

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

• Jason Scharf: Austin's present and future as Texas' tech hub

  An Austin investor talks about why he's bullish on Texas' capital

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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.

• The S&P 500 capped off a middling month in June 2026, but had a stunning 2nd quarter, up 14.87%. Rising earnings helped, and the equity risk premium for the index stood at 4.17% over the 10-year treasury rate.

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Economist; Professor of the Practice of Economic Policy at Harvard, nonresident senior fellow at the Peterson Institute, and Chairman of the US Council of Economic Advisers from 2013 to 2017.

• Jobs day: 57K jobs added in June (111K average for last three months), less than expected but probably more than breakeven. Unemployment rate fell to 4.2%, has been stable for 2 years now, but participation and employment rates fell. Wage growth picked up.

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Security researcher; built Report URI and Security Headers, and writes about web security in practice.

• Top 1 Million Analysis – June 2026: The State of Crypto

  This is part two of the ten-year anniversary Top 1 Million Analysis. Part one covered the broad state of the web — HTTPS, the security headers, cookies, email and DNS hygiene. This part is the bit I've been most excited…

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Writer on happiness, habits and human nature. Author of The Happiness Project, Better Than Before and The Four Tendencies, and host of the Happier with Gretchen Rubin podcast.

• This Summer, Design a Daily Recess: 7 Ways to Have More Fun

  An earlier version of this article appeared June 19, 2023 Toward the end of summer, have you ever felt that you wished you’d done more with those months? Life feels richer and more memorable when each season of the year…

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Security researcher; built Report URI and Security Headers, and writes about web security in practice.

• Top 1 Million Analysis – June 2026: Ten Years of Web Security

  It's been a long time since the last one of these! The previous Top 1 Million Analysis was way back in June 2022, and a lot has happened since then. But there's a much bigger reason to dust off the crawler and publish a…

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Game designer and programmer, co-founder of id Software and co-creator of Doom, Quake and Wolfenstein 3D. Now runs Romero Games in Galway, Ireland.

• The June newsletter ships tomorrow! Sign up if you haven't already, and thanks for supporting independent game devs.

  linktr.ee

  Quoting@romeroSign up now to receive the June newsletter, coming out soon! Lots of cool stuff to share!

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Monetary economist known for NGDP-level targeting. Wrote TheMoneyIllusion until it closed in 2024 and now writes The Pursuit of Happiness.

• Alan Greenspan, RIP

  Plus links from June 2026

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Guardian columnist and environmental campaigner; wrote Feral and Regenesis, and argues for rewilding and against the food system as it is.

• Two-Tier Justice

  It’s real, and it’s the exact opposite of what the far right says it is. By George Monbiot, published in the Guardian 17th June 2026 “If you are targeting people on the basis of the colour of their skin,” the Northern I…

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Game designer and programmer, co-founder of id Software and co-creator of Doom, Quake and Wolfenstein 3D. Now runs Romero Games in Galway, Ireland.

• Sign up now to receive the June newsletter, coming out soon! Lots of cool stuff to share!

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Founder of Terraform Industries and formerly a physicist at NASA's Jet Propulsion Laboratory; writes about energy, space and manufacturing.

• The enormous size of the oil and gas market drives adoption of synthetic fuel production

  Originally posted at the Terraform blog June 16 2026. One of the underrated joys of hardware tech development is having the opportunity to tell and retell the story until it gradually becomes less mysterious. To me, wha…

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Founder and CEO of Wolfram Research, creator of Mathematica and Wolfram|Alpha, and author of A New Kind of Science.

• History of Science and Technology Q&A (June 17, 2026)

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Writer of the newsletter bookbear express, on psychology, relationships, non-attachment and taste; based in San Francisco.

• late nights in the middle of june

  David Hockney, Red Celia, 1984

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Music critic of The New Yorker since 1996 and author of The Rest Is Noise, Listen to This and Wagnerism.

• Habermas, Dudamel/Conlon

  The Dream of Reason. The New Yorker, June 22, 2026. Farewell, My Lovely. The New Yorker, June 22, 2026.

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Guardian columnist and environmental campaigner; wrote Feral and Regenesis, and argues for rewilding and against the food system as it is.

• Reality Be Damned

  The policies of both Reform UK and the Conservatives would destroy a million jobs. In return, they offer imaginary employment in a fantasy industry. By George Monbiot, published in the Guardian 10th June 2026 Really? Yo…

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Founder and CEO of Wolfram Research, creator of Mathematica and Wolfram|Alpha, and author of A New Kind of Science.

• Future of Science and Technology Q&A (June 12, 2026)

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Technology journalist; writes Understanding AI, after reporting at Ars Technica, Vox and the Washington Post.

• DC-area happy hour on June 23!

  Meet the Understanding AI team — and some friends of the newsletter.

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Technologist and entrepreneur; former CTO of Threadless and chief technology officer of the 2012 Obama re-election campaign.

• Went to Cali for a fun party in the woods. Was able to hang with friends and talk about the future. Highly recommended.

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Founder and CEO of Wolfram Research, creator of Mathematica and Wolfram|Alpha, and author of A New Kind of Science.

• Business, Innovation and Managing Life (June 10, 2026)

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Guardian columnist and environmental campaigner; wrote Feral and Regenesis, and argues for rewilding and against the food system as it is.

• Vampire Capital

  The highly lucrative trade in children in care reveals another level of cynicism altogether. By George Monbiot, published in the Guardian 5th June 2026 Bring your suitcase, your bin liner, your dumpy bag. They’re handin…

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Founder and CEO of Wolfram Research, creator of Mathematica and Wolfram|Alpha, and author of A New Kind of Science.

• History of Science and Technology Q&A (June 3, 2026)

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Hosts the Lex Fridman Podcast — long, unhurried conversations with scientists, engineers and public figures. Several of the interviews quoted elsewhere on this site are episodes of it.

• I've been on a wild travel journey in China for several weeks, with only a backpack, making new friends and meeting & getting to know people from all walks of life. I've been truly humbled and inspired by everyone's kindness. Next, I'm hopping over to Taiwan (first time for me) to hang out with Jensen, attend Computex, eat a bunch of street food, and just have fun talking to all kinds of folks around the city & beyond. After that, no plans, anything goes. As always, please give travel suggestions or fill out coffee form if you want to hang out in Taiwain or anywhere else in the world. Love yo…

  ChinaRelated

Pseudonymous writer; posts careful, funny investigations of everyday questions — air quality, seed oils, arguing, chess — usually by reading the studies.

• If you're a blogger (or aspiring blogger) interested in "progress", I recommend you consider applying for the roots in progress blog-building initiative. (Deadline June 1)

  rootsofprogress.org

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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.

• I'm doing a book event on June 10 at Malaprop's in Asheville, NC — come! say hi! ask questions!

  malaprops.com

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Demographer; writes on fertility, marriage and population, and directs the Pro-Family Initiative at the Institute for Family Studies.

• The Mathematical Insanity of the Build Now Act

  Opaque, bizarre, disproportionate, and sometimes just plain stupid. Congress will probably pass it. It's just a scheme to take money from Texas and California and give it to New York City.

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Creative coder behind neal.fun, a site of interactive web experiments including Spend Bill Gates' Money, The Deep Sea and Absurd Trolley Problems.

• Introducing Cursor Camp, a website to hang out with other cursors. Out now, enjoy :)

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Hosts the Lex Fridman Podcast — long, unhurried conversations with scientists, engineers and public figures. Several of the interviews quoted elsewhere on this site are episodes of it.

• It was an honor to hang out with Jensen Huang, CEO of @nvidia, and do a long-form podcast with him. Really fun & fascinating technical deep-dive conversation on & off the mic. One of the most brilliant & thoughtful human beings I've ever met. NVIDIA is the most valuable company in the world by market cap and is the engine powering the AI revolution. Podcast probably out tomorrow (Monday) unless I get stuck in too many interesting conversations while running around in SF ;-) PS: I haven't checked my messages in days. Sorry for slow replies 🙏 Trying to stay deeply focused at in overwhelmingly…

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Co-founder of Modem and a founding engineer at Sentry, where he went on to be VP of Engineering. Co-author of Third-party JavaScript, and co-host of the State of Agentic Coding podcast with Armin Ronacher.

• txjs-1997 — This is the source code for the 1997 Texas JavaScript conference home page.

  CommitsFix broken images, add OG/Twitter preview cards

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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.

• My annual letter: https://t.co/5axz7jVwOb This year I discuss corgis, compute, and Cold War; the Texas State Fair; DSA; Neue Sachlichkeit; disfiguring the physical past and the end of history; Germanic obedience; Antichrist; wisecracks; Pascal’s Wager; romantasy; and croissants.

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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).

• LLM Research Papers: The 2025 List (July to December)

  In June, I shared a bonus article with my curated and bookmarked research paper lists to the paid subscribers who make this Substack possible.

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

• India and the invidious comparison with China

  In June I went to India for the first time. It was a quick trip, just a week, but I still got a pretty intense introduction to current debates on the Indian economy at the India Policy Forum in Delhi. As a China special…

  ChinaRelated

Founder of the toy manufacturer Viahart; writes about manufacturing, importing and why bringing production back to America is harder than it sounds.

• Victim of Your Own Success Syndrome

  Midland, Texas. More oil gets drilled here than anywhere else in the USA. And it’s lucrative. There’s a lot of money to be made. We’re talking about $100,000+ for risky jobs that don’t require a college degree. Okay, bu…

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

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

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Software engineer who writes the blog Made of Bugs about performance, debugging and understanding computer systems. Previously worked at Anthropic on interpretability, at Stripe on Sorbet, and at Ksplice.

• Help me out, cyclists of Mastodon: I want a rear basket for my bike (RadCity 5) that will also let me hang my panniers on either side of the rack. This seems to be a shockingly hard thing to find? Am I missing something?

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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?

• A Short History of My Last Six Years

  On June 18, 2016, I slipped and fell down a deep, deep hole.

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Co-founder and partner at Union Square Ventures in New York. Has written the AVC blog almost every day since 2003, on venture capital, startups, music and crypto.

• @whitneymcn @aweissman happy cover friday. here is Valerie June covering Gillian Welch

  soundcloud.com

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Software engineer who writes the blog Made of Bugs about performance, debugging and understanding computer systems. Previously worked at Anthropic on interpretability, at Stripe on Sorbet, and at Ksplice.

• Write testable code by writing generic code

  Alex Gaynor recently asked this question in an IRC channel I hang out in (a channel which contains several software engineers nearly as obsessed with software testing as I am): uhh, so I’m writing some code to han…

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

• Thinking of Home: Dickinson, Texas

  For those of you who have moved away from the town where you grew up, the few times that you see your hometown in the national news creates an enormous sense of pride. Over the past few weeks, the town I grew up in, Dic…

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Author of Fluent Forever and founder of the app of the same name; teaches pronunciation first and vocabulary through images rather than translation.

• How To Learn Vocabulary in Your Target Language More Efficiently

  Updated on June 23, 2022 Are you learning a new language but feel unsure how to learn vocabulary and retain it? Get the lowdown on how to memorize words

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