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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.

• Anti-Semitism is the organization of politics against the Jews - Ruth Wisse: Otherwise known as: Why confront your own failures when you can blame the Jews—or the world’s only Jewish state? If I were a Birmingham resident I would be furious
  Quoting@habibi_uk"We at Birmingham Labour really want you to know that we are doing everything we can to hurt Israel." Just what the troubled city of foul hate preaching and rallies for racist terrorists really, really needs, eh. Nothing on Hamas, of course. And they didn't even mention antisemitism, now energised…

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Economist at George Mason University. Writes Overcoming Bias on prediction markets, signalling and the far future, and wrote The Age of Em and The Elephant in the Brain.

• Only 12% chance of US federal anti-prediction mkt law in '26.

  polymarket.com

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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 writer; author of the Noahpinion newsletter.

• The anti-American Right

  Bo French’s rightist movement is a dead end for our nation. Fortunately, it’s beatable.

  AmericaRelated

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.

• Growth tactic #13: "🎈Go anti-professional: One of the most viral LinkedIn posts of all time came from a manager who swapped her corporate headshot for a casual, no-makeup photo. Pick a norm of your own and break it in public. You might talk about how much roles actually pay or admit that a big launch didn’t actually meet internal expectations. People are tired of perfectly curated, glossy exteriors of the professional world, so a bit of human messiness will stand out." More here:

  lennysnewsletter.com

  Quoting@lennysan60+ creative growth ideas Everyone's running the same growth playbook: high-production launch videos, paid influencers, AEO, social, maybe some (poorly attended) events. Your competitors are in the same channels competing for the same eyeballs. But attention goes to what people don't see coming. Th…

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

• The world deserves confidence that American companies developing increasingly capable AI will act responsibly, especially as the trajectory of progress has steepened. Every frontier lab must deliver on this, and there is no reason any of us should come to work if we cannot. We welcome a federal framework that sets consistent safety requirements for frontier AI. But we do not believe we need to wait for an anti-trust exemption or legislation to begin the work of providing this confidence. Consistent rules to manage frontier risk so that we can maximize the benefits are a good idea (and we are…

  AmericaRelated

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.

• I 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:

  youtube.com

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Programmer, writer and musician; author of the Learn Code the Hard Way books and of Mongrel, the Ruby web server.

• Started late today but I'm streaming more OpenGL education. I'm doing anti-aliasing but I'm kind of meh on it and might just skip it and move on to advanced lighting techniques:

  twitch.tv

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Principal engineer at Cloudflare as of 2026, on agents and developer tooling. Streams TypeScript, OCaml and Neovim on Twitch, and wrote the better-result library after writing the same Result type about a hundred times.

• anti-slop — Opinionated Oxlint rules for rejecting low-evidence TypeScript and JavaScript patterns

  TypeScriptJavaScriptRelated

Canadian software developer and writer, co-editor of the XML and Atom specifications and formerly of Sun Microsystems, Google and AWS. Has written the blog ongoing since 2003.

• Vancouver’s progressive anti-Ken-Sim municipal parties have coalesced behind Pete Fry as Bill Azaroff gracefully steps aside: https://dailyhive.com/vancouver/william-azaroff-vancouver-election-mayoral-announcement-sept-8 I’ve met both gents and either would be a vastly better mayor than Sim. I do prefer Fry though, first of all I’m a Green, second, he’s been on council for years and knows how things work. Ken Sim is toast. #Vancouver #election #election2026

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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.

• In a difficult and dangerous world, a decade on from Brexit, there is a risk that Britain loses the confidence to lead and stand up for its values. I’m not prepared to let that happen. It is more important than ever that Britain stands for something. We have called for years for a two-state solution in the Middle East, but we must recognise that those words are meaningless unless we back them up with action. For too long, we have been hesitant to act, fearful of being accused of being anti-Israel. Today we are announcing carefully judged, targeted steps that are not aimed at the Israeli peopl…

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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.

• Some questions: Would inflation be even worse if we weren’t in a housing recession? Are private markets the perfect place to hide fraud? Are colleges screwed? Is NVDA the anti-bubble? How important is the wealth effect to the economy?

  inflationRelated

Writes Pedestrian Observations on public transit and why infrastructure costs what it does; a pure mathematician by training, comparing how different countries build.

• The Country is the Natural Unit of Policy Analysis

  This post is to explain why comparative policy analysis must start with sovereign states, rather than their subnational entities. This includes urbanism, despite the anti-national orientation of some urbanists. In parti…

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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.

• A really interesting thread generally from @swtch.com -- and fascinating to watch Claude (correctly) do the archaeology. Confession: Claude's inability to verify www.illumos.org/issues/4627 (which it correctly identified as the bug) has me questioning the anti-bot provisions on the bug database...
  Quoting@swtch.comGo issue #78438 was another net/http test flake. This one turned out to be Go tripping over a Solaris kernel bug that predates the Illumos fork. @bcantrill.bsky.social fixed it in 2014! Hurry up, Oracle! research.swtch.com/agentlogs/so...

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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.

• Michael Kratsios: Trump's Science Agenda, Anti-Science Claims, Fauci's Damage, DEI & China

  ChinaRelated

Founder and former CEO of Zynga, the social-games company behind FarmVille, Zynga Poker and Words with Friends; says he founded ten companies in all, and wrote Life at the Speed of Play.

• Here is the actual threat to Western democracy and freedom. AIPAC is battling the DSA and extreme left but portrayed as anti American. Meanwhile Qatar, muslim brotherhood, CAIR are supporting the most America hating candidates. Hiding in plain sight as always.
  Quoting@paulsperry_BREAKING: The Shariah-ruling arm of the US Muslim Brotherhood has issued a fatwah unlocking an estimated $140 million a year in tithing (zakat) from American Muslims to finance the campaigns of Muslim leaders for public office including the House & Senate

  AmericaRelated

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

• The data center backlash is a product of two mutually reinforcing dynamics: 1) Locally, it's material concerns (noise, water, electricity) and process failure (NDAs, tax subsidies) 2) Nationally, it's broad anti-corporate and anti-AI sentiment (AI companies are screwing you over to get rich off dumb toys) Social media + political campaigns amplify hyperlocal grievances into a broad populist movement, and there's no compelling "pro data center faction" to make the opposite case
  Quoting@JeremiahDJohnsPeople are about twice as likely to approve of **coal plants** being built nearby as opposed to data centers. Coal plants use more water and pollute more. They create comparable noise pollution. There's no way this makes sense outside a media panic.

  data centersenergyRelated

Writes Very Serious, a newsletter on politics, the economy and culture, and hosts the podcast of the same name.

• Woke 1 Was Anti-Populist, and Not in the Good Way

  By demanding the purification of the individual and branding broad swathes of the public as oppressor classes, 'Woke 1' besmirched the average Americans who Democrats once championed.

  AmericaRelated

Non-fiction writer, podcaster and occasional TV host. Author of thirteen books including The Ghost Map, Where Good Ideas Come From and Extra Life, host of the PBS series How We Got To Now, and author of the Adjacent Possible newsletter on innovation.

• I thoroughly enjoyed going deep with @nxthompson on AI and the future of writing and creativity for The Most Interesting Thing in AI podcast. A few highlights: • How Nick and I have used @Gemini_Notebook to write our books • Why AI can lead to more serendipitous discovery in the research process (at least using Notebook’s citation-based approach) • The brilliance of the “explain” button in Notebook’s quiz feature • AI as the anti-social-media, with its gravitational pull towards mainstream consensus (citing @danwilliamsphil) • Why our attachment to the human voice of the writer is not going a…
  Quoting@nxthompsonFew people have put more time into figuring out how creativity works than @stevenbjohnson. How do we link ideas in our mind, and how can we use tools to make that linking easier? He's not only written some of my favorite books of the past few decades; he's also written some of my favorite essays ab…

  GoogleRelated

Physicist and science communicator. Writes Backreaction and makes videos explaining new physics and astronomy results, frequently to argue that the headline about them overstates the case.

• The War on AI Has Begun

  The war on artificial intelligence is no longer just online arguments and complaints about data centers. Something has shifted, and law enforcement has noticed. Where did this new anti-technology movement come from, who…

  data centersRelated

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

• data center road trip // day 6-7 I don't think the data center backlash is about AI being evil or risky — but it does reflect people finding AI uniquely useless for example: is the data center backlash just like the backlash to solar farms? @nicholas_bagley observed that both movements use classic NIMBY playbooks: Facebook groups, FOIA requests, packing city council. both also involve land use tensions between rural towns and state directives. yet the Saline, MI activists I met were pro-solar farms and anti-data center. first, data center deals are more secretive with more NDAs and bigger $$…
  Quoting@jasminewsunI’m spending the next week driving around Wisconsin and Michigan to get a firsthand view of the data center buildout and backlash am visiting sites, talking to tons of people — tradespeople, activists, planners, residents — then writing up a story lmk what questions I should dig into!

  solardata centersRelated

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.

• Shocking news that Counter Terrorism Police are investigating a credible, serious threat targeted at an Islamic event in Suffolk. Thanks to the quick action taken by police and the organisers, nobody was hurt. My message is clear: I will not tolerate any attacks on our Muslim communities, or any form of anti-Muslim hatred.

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

• Destiny (Steven Bonnell II): a liberal in the age of radical progressives and MAGA

  Navigating the anti-Trump center-left

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General partner at Andreessen Horowitz from 2013 to 2018 and CTO of Coinbase from 2018 to 2019; co-founder of Counsyl and Earn.com. Wrote The Network State (2022), free in full at thenetworkstate.com, and founded the Network School.

• Unfortunately, I completely agree that the United States of America is rapidly descending into all-out conflict between left and right. The Luigi left, Kirk killers, anti-Tesla terrorists, and Altman attackers are already in shoot-on-sight mode against conservatives, libertarians, and technologists. The right isn’t there yet; they’re called reactionaries because they only react, so they’re always one cycle behind. Thus, the left has already started shooting while the right is still “only” mirroring the lawfare of last decade’s left. But anyone can see how incandescently angry the American rig…
  Quoting@romanhelmetguyGonna try to explain this to tech CEOs again: Young Americans are pissed. They feel betrayed. Half have embraced the far right & want to cut off your access to cheap foreign labor. The other half have embraced the far left & want to cut off your head. One side will win. Choose.

  JavaScriptAmericaRelated

Writes Very Serious, a newsletter on politics, the economy and culture, and hosts the podcast of the same name.

• Impeach Todd Blanche

  With the thin Republican majorities, Democrats could plausibly force a trial of the acting Attorney General over the "Anti-Weaponization Fund"

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American writer and long-term traveller. Blogs at tynan.com about travel, owning few possessions, habits and the gear he carries; author of Superhuman by Habit and Make It Big.

• The anti bot protection that @axs uses is so bad that I buy tickets on @Gametime now, even though I'd rather just buy them direct. One or two refreshes to see if better seats showed up and I'm blocked for a long time.

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Programmer; wrote Redis and hping, and blogs about C, systems programming and working alone.

• Don't fall into the anti-AI hype

  I love writing software, line by line. It could be said that my career was a continuous effort to create software well written, minimal, where the human touch was the fundamental feature. I also hope for a society where…

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Cryptography engineer; maintains Go's cryptography libraries as a full-time open-source maintainer, funded directly by companies that use them.

• Building a Transparent Keyserver

  We apply a transparency log to a centralized keyserver step-by-step, in less than 500 lines, with privacy protections, anti-poisoning, and witness cosigning.

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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.

• Think, people. Like many other technologies, AI technology has applications that are a net negative, unless well regulated. Don't support the anti-regulation lobby and don't support the people and the companies behind it.
  Quoting@nytopinionMark Zuckerberg has a vision for how A.I. could be used in Meta's universe. But the actor and filmmaker Joseph Gordon-Levitt is here to point out a flaw in the technology: an apparent lack of guardrails around how the company's chatbot interacts with underage users.

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Genomics researcher and writer on science, biotech and the culture of research.

• Your newborn is not Hepatitis B vaccinated because of wokeness

  Being reflexively anti-system is bad

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Mac and iOS developer; founder of Red Sweater Software (MarsEdit, FastScripts) and co-host of the Core Intuition podcast.

• I got sucked into an anti-trans thread rooted in one of @jk_rowling's utterly deplorable, obsessive takes on trans people. So many people are worried about trans women seeing cis women undressing. Why aren't they equally worried about any person seeing another person undressing?

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Programmer; wrote Redis and hping, and blogs about C, systems programming and working alone.

• Human coders are still better than LLMs

  This is a short story of how humans are still so much more capable of LLMs. Note that I'm not anti-AI or alike, you know it if you know me / follow me somewhere. I use LLMs routinely, like I did today, when I want to te…

  LLMsRelated

Genomics researcher and writer on science, biotech and the culture of research.

• Autoimmune therapies: an inspiration for anti-aging therapies?

  On how anti-aging therapies could piggyback on autoimmune treatment strategies in the same way the latter piggybacked on advances in cancer therapies

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Writer living in Brooklyn and former Man Repeller features director; writes the weekly newsletter Maybe Baby on culture and consumption.

• Anti-social behavior like this is not mature, polite, or cool. It actually makes everyone lonely and neurotic

  haleynahman.substack.com

  Quoting@Codie_SanchezAs an adult, don’t ask your friends to pick you up from the airport. Use uber, save a friendship.

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Writer living in Brooklyn and former Man Repeller features director; writes the weekly newsletter Maybe Baby on culture and consumption.

• I finally wrote my anti-astrology screed

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Professor of psychology at the University of Toronto and Brooks and Suzanne Ragen Professor Emeritus at Yale. Author of Against Empathy, The Sweet Spot and Psych, and writer of the Small Potatoes newsletter.

• Anti-equality: Social comparison in young children

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