Astral Codex Ten Podcast

Jeremiah
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  • TECHNOLOGY
  • UPDATED DAILY

The official audio version of Astral Codex Ten, with an archive of posts from Slate Star Codex. It's just me reading Scott Alexander's blog posts.

  1. MAY 8

    Links For April 2026

    [I haven't independently verified each link. On average, commenters will end up spotting evidence that around two or three of the links in each links post are wrong or misleading. I correct these as I see them, and will highlight important corrections later, but I can't guarantee I will have caught them all by the time you read this.] https://www.astralcodexten.com/p/links-for-april-2026

    46 min

  2. MAY 8

    Half A Month Of Consolation Writing Advice

    This month, rationalist institution Lighthaven is running their second Inkhaven, a bootcamp for aspiring bloggers. Participants have to publish a post a day, or they get kicked out. You can read their posts here. I'm too old to manage that pace, but agreed to participate as an advisor. Then I missed the first half of the month because I was on a trip. As compensation, here are fifteen pieces of writing advice for the fifteen days I was absent. 1: Against microdishonesty Sasha Chapin has a piece If You Have Writer's Block, Maybe Stop Lying To Yourself. Maybe lying gives Sasha writer's block, but for my last set of mentees it more often just made things sound awkward and unclear. The English language hates the slightest whiff of dishonesty, even levels so small you wouldn't naturally notice them yourself. It punishes you by making your writing worse. I remember asking one of my mentees to take out a tangential paragraph that didn't really connect to the rest of the argument. They refused, and awkwardly admitted that it was the one thing they really wanted to say with the essay. They'd written the essay about something else, because the other thing was more presentable. Then they'd smuggled their actual point in as a payload. Clever plan, but your readers will notice. There are countless reasons to lie when you're writing. Maybe you thought of a really clever introduction, but the thing it introduces is 5% different from the thing you really want to say, so you need to be a little vague and smush them together. Maybe you have a really great perspective on something which is almost like the topic du jour, and you need to make it sound like it's exactly the topic du jour to get it published. Maybe you can rebut 99 out of 100 arguments for some stupid evil position that you want to debunk, but it would be embarrassing to leave one hanging, so you smudge it together into the other 99 arguments. English will punish you for all these things. Sometimes there's no better solution and you have to settle, but your readers will notice.   https://www.astralcodexten.com/p/half-a-month-of-consolation-writing

    33 min

  3. MAY 8

    Orban Was Bad, Even Though We Don't Have A Perfect Word For His Badness

    Viktor Orban, __________ of Hungary for sixteen years, lost his re-election bid earlier this week. The simplest phrase to put in the blank is "prime minister". Some people have proposed more loaded terms like "strongman", "autocrat", and "dictator". But he did lose his re-election bid earlier this week, prompting comments that these more loaded terms, especially the d-word, might have been hyperbolic. https://www.astralcodexten.com/p/orban-was-bad-even-though-we-dont

    17 min

  4. APR 21

    Against The Concept Of Telescopic Altruism

    I. "Telescopic altruism" is a supposed tendency for some people to ignore those close to them in favor of those further away. Like its cousin "virtue signaling", it usually gets used to own the libs. Some lib cares about people in Gaza - why? Shouldn't she be thinking about her friends and neighbors instead? The only possible explanation is that she's an evil person who hates everyone around her, but manages to feel superior to decent people by pretending to "care" about foreigners who she'll never meet. This collapses upon five seconds' thought. Okay, so the lib is angry about the Israeli military killing 50,000 people in Gaza. Do you think she would be angry if the Israeli military killed 50,000 of her neighbors? Probably yes? Then what's the problem? "But vegetarians care about animals more than humans!" Okay, yeah, they sure do get mad about a billion pigs kept for their entire lives in cages too small to turn around in, then murdered and eaten. Do you think they'd care if a billion of their closest friends were kept for their entire lives in cages too small to turn around in, then murdered and eaten? I dunno, seems bad. Maybe there is some possible comparison where some altruist cares about some set of foreigners more than a comparable set of countrymen? The war in Gaza killed 50,000 people, but the opioid crisis kills a bit over 50,000 Americans per year - is everyone who cares about Gaza exactly equally concerned about the opioid crisis? No, but there's a better explanation - people care about dramatic deaths in big explosions more than boring health crises, regardless of where they happen. Everyone, lib and con alike, cared more about 9-11 than about a hundred opioid crises, even though the former only killed 4% as many people as the latter. And even the people who care about the opioid crisis usually can't bring themselves to care about anything on the List Of Top US Causes Of Death, which are all extra-boring things like diabetes. Once you match like to like, nope, it's pretty hard to find a "telescopic altruism" example that stands out from the general background of people having weird priorities. Nearly everyone cares about people close to them more than people far away. If there's a lib who would attend a Gaza protest instead of getting their deathly-ill kid emergency medical care, I haven't met them - and the "telescopic altruism" crowd certainly hasn't provided evidence of their existence. Instead, the people who care about their neighbors 1,000,000x times more than Gazans point to the people who 'only' care about their neighbors 1,000x times more than Gazans and say "Look! Those guys care about Gazans more than their neighbors! Get 'em!" in order to avoid any debate about whether a million or a thousand or whatever is the right multiplier. https://www.astralcodexten.com/p/against-the-concept-of-telescopic

    11 min

  5. APR 21

    A Buddhist Sun Miracle?

    In 1917, some Portuguese children started seeing visions of the Virgin Mary. The Virgin told them she would enact a great miracle on a certain day in October, and a crowd of 100,000 gathered to witness the event. According to eyewitness reports, newspaper articles, etc, they saw the sun spin around, change colors, and do various other miraculous things. At least a hundred separate testimonies of the event have come down to us, with only two or three people saying they didn't see it. Catholics continue to bring this up as one of the best-attested miracles and strongest empirical proofs of the faith - including here on Substack, where there was a spirited debate about the event last fall. I did my best to research the event, and the results were The Fatima Sun Miracle: Much More Than You Wanted To Know and Highlights From The Comments On Fatima. The main thing I was able to add to the Substack discussion, if not the broader worldwide one, was a survey of similar events. There were apparent sun miracles at various other Catholic sites and apparitions of the Virgin, including a crowd of hundreds of thousands in Italy, and a small town in Bosnia where they seem to happen regularly. But also, people who "sungaze" - a weird alternative medicine practice where people stare at the sun in the hopes that maybe this will help something and they won't go blind - report sometimes seeing the sun spin and change color in similar ways. And Buddhist meditators report that concentrating very hard on any bright light will cause similar things to happen. Still, the Catholics - especially original Fatima-Substacker Ethan Muse - were not convinced. The other Catholic sightings could have been other real miracles, equally attributable to the Virgin. The sungazers were staring at the sun for a long time, unlike the Fatima pilgrims who just happened to glance up at it. And the meditators were doing sophisticated contemplative exercises, again different from the Fatima pilgrims who just looked up and saw it. These were suggestive, but there was no record of a miracle exactly like Fatima happening within a non-Catholic religious tradition. Until now! Substacker Arthur T, building on research from Sophia In The Shell, has found a 1990s Buddhist sun miracle very similar to Fatima. https://www.astralcodexten.com/p/a-buddhist-sun-miracle

    11 min

  6. APR 21

    How Natural Tradeoff And Failure Components?

    Michael Halassa: Did John Nash Really Have Schizophrenia? is a good article on the genetics of psychosis. Previous research found that schizophrenia genes decreased IQ but increased educational attainment. Usually IQ and education are correlated, so this was surprising. The new research finds two components to schizophrenia genetic risk. The first component, shared with bipolar, increases educational attainment. The second component, not shared with bipolar, decreases IQ. They average out to the observed full-spectrum genetic signal of constant-to-increased educational attainment paired with constant-to-decreased IQ. In 2021, I discussed tradeoff vs. failure models of psychiatric conditions, and said that most conditions were probably a mix of both. The new research seems to confirm this: the first genetic component of schizophrenia is a tradeoff: bad insofar as it gives you higher schizophrenia risk, good insofar as it gives you higher educational attainment. Most likely this has something to do with creativity or motivation. The second component is a failure: bad in every way, with no compensating advantage. Most likely this is detrimental mutations in genes for neurogenesis and synaptic pruning. I mostly wasn't thinking about schizophrenia when I wrote about tradeoffs vs. failures, so I was surprised to see the theory so nicely reflected there. But in retrospect, this is common sense. All multifactorial problems should naturally be combinations of tradeoffs and failures. https://www.astralcodexten.com/p/how-natural-tradeoff-and-failure

    6 min

  7. APR 21

    Every Debate On Pausing AI

    SUPPORTER: America needs to start talking to China to come up with a bilateral agreement to pause AI. The agreement would need to be transparent, mutually enforceable, and… OPPONENT: We can't unilaterally pause AI! China would destroy us! SUPPORTER: As I said, we need to start negotiating a bilateral agreement so that both sides will… OPPONENT: You fool! Don't you know that while we unilaterally pause AI, China will be racing ahead and using their lead to erode our fundamental rights and freedoms? How could you be so naive! SUPPORTER: Look, I promise this is about negotiating for a mutual pause. We don't think a unilateral pause would work any more than you would. But we think that if we negotiate… OPPONENT: And while we unilaterally pause, do you think China will just be twiddling their thumbs, doing nothing? Obviously not! This is about ceding the future to our rivals! SUPPORTER: I get the feeling you're not listening to me. https://www.astralcodexten.com/p/every-debate-on-pausing-ai

    8 min

  8. APR 21

    Being John Rawls

    I. John Rawls was born in Baltimore, Maryland, on February 21, 1921. Not John Rawls the famous liberal philosopher (or, rather, John Rawls the famous liberal philosopher was also born in Baltimore, Maryland on February 21, 1921, but he is not the subject of our story). This is John Rawls the alcoholic. John Rawls the alcoholic was twelve when they lifted Prohibition. He partook immediately, and dropped out of school the following year, supporting himself through a combination of odd jobs, petty crime, and handouts. When he was 41, he committed a not-so-petty crime - killing a man in a bar fight. Although he fled the scene and escaped without consequences, it turned him paranoid. Odd jobs and petty crime were both young men's games, and the handouts became an ever-larger share of his income. He learned to play the field, peddling the same sob story to the Salvation Army on Monday Wednesday Friday, the YMCA Tuesday and Thursday, and the local churches on weekends. He expected to drink himself to death by age 60, and there wasn't much to do but wait out the clock. But as he entered his early fifties, the handouts started to dry up. The Salvation Army closed shop, the YMCA pivoted to physical fitness, and even the churches were no longer as charitable as before. One day he ran into a man he'd once seen volunteering at Salvation Army, and asked him what had happened. "You haven't heard?" asked the volunteer. "None of the rich people donate to us anymore. They're all giving to this group called the John Rawls Foundation. If you're in trouble, you should talk to them. They're swimming in money!" This naturally interested John Rawls the alcoholic, so he obtained their address from the volunteer and immediately headed over to their office building. He was met by a psychologist, who introduced himself as John Rawls ("Not the one the foundation is named after, just a funny coincidence, haha!") John Rawls Psychologist told John Rawls Alcoholic that their foundation would be happy to help, but that he would have to get through a screening process first. The screening process would involve being administered a certain experimental drug and led through a hypnotic induction. The social worker would record his answers, and, if he passed the test, he would receive a monthly stipend that far exceeded the sum of his previous Salvation Army, YMCA, and church handouts. "Like a truth serum?" asked John Rawls Alcoholic. "Sure, let's say like a truth serum," said John Rawls Psychologist. "When will the screening process be?" asked John Rawls Alcoholic. "How about immediately?" asked John Rawls Psychologist. So John Rawls Alcoholic found himself lying on a bed in what looked like a medical examination room, as John Rawls Psychologist shone a piercing light into his eye. https://www.astralcodexten.com/p/being-john-rawls

    32 min
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The official audio version of Astral Codex Ten, with an archive of posts from Slate Star Codex. It's just me reading Scott Alexander's blog posts.

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