

Astral Codex Ten Podcast
Jeremiah
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.
Episodes
Mentioned books

Feb 4, 2022 • 1h 30min
ACX Grants ++: The First Half
https://astralcodexten.substack.com/p/acx-grants-the-first-half This is the closing part of ACX Grants. Projects that I couldn’t fully fund myself were invited to submit a brief description so I could at least give them free advertising here. You can look them over and decide if any seem worth donating your money, time, or some other resource to. I’ve removed obvious trolls, a few for-profit businesses without charitable value who tried to sneak in under the radar, and a few that violated my sensibilities for one or another reason. I have not removed projects just because they’re terrible, useless, or definitely won’t work. My listing here isn’t necessarily an endorsement; caveat lector. Still, some of them are good projects and deserve more attention than I was able to give them. Many applicants said they’d hang around the comments section here, so if you have any questions, ask! (bolded titles are my summaries and some of them might not be accurate or endorsed by the applicant) I’ll post the next 60 or so of these next week, so if you don’t see yours, be patient.

Feb 3, 2022 • 23min
Why Do I Suck?
https://astralcodexten.substack.com/p/why-do-i-suck I recently ran a subscriber-only AMA, and one of the most frequent questions was some version of “why do you suck?” My commenters were very nice about it. They didn’t use those exact words. It was more like “I loved your articles from about 2013 - 2016 so much! Why don’t you write articles like that any more?” Or “Do you feel like you’ve shifted to less ambitious forms of writing with the new Substack? It feels like there was something in your old articles that isn’t there now.” There was a lot of similar discussion on this one year retrospective subreddit thread. The evidence that I’ve gotten worse at blogging is mixed. I asked about it on a reader survey six months ago, and got this:

Feb 2, 2022 • 6min
Motivated Reasoning As Mis-applied Reinforcement Learning
https://astralcodexten.substack.com/p/motivated-reasoning-as-mis-applied Here’s something else I got from the first Yudkowsky-Ngo dialogue: Suppose you go to Lion Country and get mauled by lions. You want the part of your brain that generates plans like “go to Lion Country” to get downgraded in your decision-making algorithms. This is basic reinforcement learning: plan → lower-than-expected hedonic state → do plan less. Plan → higher-than-expected hedonic state → do plan more. Lots of brain modules have this basic architecture; if you have a foot injury and walking normally causes pain, that will downweight some basic areas of the motor cortex and make you start walking funny (potentially without conscious awareness). But suppose you see a lion, and your visual cortex processes the sensory signals and decides “Yup, that’s a lion”. Then you have to freak out and run away, and it ruins your whole day. That’s a lower-than-expected hedonic state! If your visual cortex was fundamentally a reinforcement learner, it would learn not to recognize lions (and then the lion would eat you). So the visual cortex (and presumably lots of other sensory regions) doesn’t do hedonic reinforcement learning in the same way. So there are two types of brain region: basically behavioral (which hedonic reinforcement learning makes better), and basically epistemic (which hedonic reinforcement learning would make worse, so they don’t do it).

Feb 1, 2022 • 23min
Predictions For 2022
https://astralcodexten.substack.com/p/predictions-for-2022-contest - Read the contest description/rules here - Give feedback on the contest here - And once again, the form where you take the contest is here I didn’t let myself check prediction markets when making these forecasts since that would spoil the fun. I also only permitted myself at most five minutes of research on any one question. See the bottom of the post for a contest/survey. US/WORLD1. Biden approval rating (as per 538) is greater than fifty percent: 40% 2. At least $250 million in damage from a single round of mass protests in US: 10% 3. PredictIt thinks Joe Biden is most likely 2024 Dem nominee: 80% 4: …thinks Donald Trump is most likely 2024 GOP nominee: 60% 5. Beijing Olympics happen successfully on schedule: 99% 6. Major flare-up (worse than past 5 years) in Russia/Ukraine conflict: 50% 7. Major flare-up (worse past 10 years) in Israel/Palestine conflict: 5% 8. Major flare-up (worse than in past 50 years) in China/Taiwan conflict: 5% 9. Honduran ZEDEs legally crippled to the point where no reasonable person would invest in them further: 5% 10. New ZEDE approved in Honduras: 30% ECON/TECH 11. Gamestop stock price still above $100: 30% 12. Bitcoin above 100K: 20% 13. Ethereum above 5K: 20% 14. Ethereum above 0.05 BTC: 90% 15. Bored Ape floor price here below current price of $203K: 40% 16. Dow above 35K: 90% 17. ...above 37.5K: 40% 18. Inflation for the year below five percent: 90% 19. Unemployment below five percent: 50% 20. Google widely allows remote work, no questions asked: 50% 21. Starship reaches orbit: 90%

Jan 28, 2022 • 60min
Highlights From The Comments On Health Care Systems
https://astralcodexten.substack.com/p/highlights-from-the-comments-on-health I’m experimenting with making this more structured this time, so: Section I: Collection of comments on US health care Section II: Drug pricing, and does the US subsidize the rest of the world? Section III: Why are health economics so unlike other economics? Section IV: Giant pile of comments by readers who live in different countries explaining their own countries’ health systems, and their experiences with them. I. GummyBearDoc writes: I want to push back on the assertion Scott made that "Certainly rich people in America get good health care." After he published this book in June 2020, Ezekiel Emmanuel published an article in JAMA IM (link: https://bit.ly/3nGRHL8) called "Comparing Health Outcomes of Privileged US Citizens With Those of Average Residents of Other Developed Countries." He wanted to test the commonly stated trope that a feature of the US healthcare system is that the rich here get the very best care in the world. To do that, he looked at outcomes across six benchmark diseases (heart attack, colon cancer, breast cancer, infant mortality, maternal mortality, and pediatric acute lymphocytic leukemia). He compared outcomes for white people in the 1% of richest counties in the US, 5% richest counties in the US, and average outcomes in 12 rich countries (i'm not going to type them all out but they're places like Australia, Canada, and Germany). The results were...not so great for rich Americans!

Jan 27, 2022 • 22min
Against That Poverty And Infant EEGs Study
https://astralcodexten.substack.com/p/against-that-poverty-and-infant-eegs A recent paper claims to have found an Impact Of A Poverty Reduction Intervention On Infant Brain Activity. It’s doing the rounds of the usual media sites, like Vox and the New York Times: The New York Times @nytimes Breaking News: Cash payments for low-income mothers increased brain function in babies, a study found, with potential implications for U.S. safety net policy. Cash Aid to Poor Mothers Increases Brain Activity in Babies, Study FindsThe research could have policy implications as President Biden pushes to revive his proposal to expand the child tax credit.nyti.ms January 24th 2022 3,348 Retweets13,165 Likes I was going to try to fact-check this, but a bunch of other people (see eg Philippe Lemoine, Stuart Ritchie) have beaten me to it. Still, right now all the fact-checking is scattered across a bunch of Twitter accounts, so I'll content myself with being the first person to summarize it all in a Substack post, and beg you to believe I would have come up with the same objections eventually. Before we start: why be suspicious of this paper? Hundreds of studies come out daily, we don't have enough time to nitpick all of them. Why this one? For me, it's because it's a shared environmental effect being measured by EEG at the intersection of poverty and cognition. Shared environmental effects on cognition are notoriously hard to find. Twin studies suggest they are rare. Some people have countered that perhaps the twin studies haven't measured poor enough people, and there's a lot of research being done to see what happens if you try to correct for that, but so far it’s still controversial. All that research is being done by cognitive testing, which is a reasonable way to measure cognition. This study uses EEG instead. I'm skeptical of social science studies that use neuroimaging, and although EEG isn't exactly the same as neuroimaging like CT or MRI, it shares a similar issue: you have to figure out how to convert a multi-dimensional result (in this case, a squiggly line on a piece of paper) into a single number that you can do statistics to. This offers a lot of degrees of freedom, which researchers don't always use responsibly.

Jan 27, 2022 • 21min
Bounded Distrust
https://astralcodexten.substack.com/p/bounded-distrust I. Suppose you're a liberal who doesn't trust FOX News. One day you're at the airport, waiting for a plane, ambiently watching the TV at the gate. It's FOX News, and they're saying that a mass shooter just shot twenty people in Yankee Stadium. There’s live footage from the stadium with lots of people running and screaming. Do you believe this? I'm a liberal who doesn't trust FOX News, and sure, I believe it. The level on which FOX News is bad isn't the level where they invent mass shootings that never happened. They wouldn't use deepfakes or staged actors to fake something and then call it "live footage". That would go way beyond anything FOX had done before. Liberals might say things like "You can't trust FOX News on anything, they are 100% total liars", but realistically we still trust them quite a lot on stuff like this. Now suppose FOX says that police have apprehended a suspect, a Saudi immigrant named Abdullah Abdul. They show footage from a press conference where the police are talking about this. Do you believe them? Again, yes. While I've heard rare stories of the media jumping in too early to identify a suspect, "the police have apprehended" seems like a pretty objective statement. And once again, faking a police conference - or even dubbing over a police conference so that when the police say some other name, the viewers hear "Abdullah Abdul" - is way worse than anything I've ever heard of FOX doing. Even if I learned of one case of them doing something like this once, I would think "wow that's crazy" and still not update to believing they did it all the time. It doesn't matter at all that FOX is biased. You could argue that "FOX wants to fan fear of Islamic terrorism, so it's in their self-interest to make up cases of Islamic terrorism that don't exist". Or "FOX is against gun control, so if it was a white gun owner who did this shooting they would want to change the identity so it sounded like a Saudi terrorist". But those sound like crazy conspiracy theories. Even FOX's worst enemies don't accuse them of doing things like this.

Jan 26, 2022 • 16min
Grading My 2021 Predictions
https://astralcodexten.substack.com/p/grading-my-2021-predictions At the beginning of every year, I make predictions. At the end of every year, I score them. Here are 2014, 2015, 2016, 2017, 2018, 2019, and 2020. And here are the predictions I made for 2021 (in April; I was really late). Bolded statements happened, italicized statements did not happen (as of 1/1/22). Neither-bold-nor-italic resolved ambiguous. We have a debate every year over whether 50% predictions are meaningful in this paradigm; feel free to continue it. 1. Biden approval rating (as per 538) is greater than fifty percent: 80% 2. Court packing is clearly going to happen (new justices don't have to be appointed by end of year): 5% 3. Yang is New York mayor: 80% 4. Newsom recalled as CA governor: 5% 5. At least $250 million in damage from BLM protests this year: 30% 6. Significant capital gains tax hike (above 30% for highest bracket): 20% 7. Trump is allowed back on Twitter: 20% 8. Tokyo Olympics happen on schedule: 70% 9. Major flare-up (significantly worse than anything in past 5 years) in Russia/Ukraine war: 20%

Jan 22, 2022 • 6min
Resubmit And Summarize Your Proposals For Grants ++
https://astralcodexten.substack.com/p/resubmit-and-summarize-your-proposals https://forms.gle/xhVTebsZgSEQ7BpeA I promised you all that once I was done with the main round of ACX Grants, I would run Grants ++, where I publish the proposals that didn't get funded here, so readers could look at them, see if they’re interesting, and maybe get in touch and offer funding. Two things have made this harder than expected. First, a lot of people gave pretty unclear instructions about whether they wanted me to include their proposal in this, or changed their minds halfway through, in a way that would require me to keep track of a lot of emails about whose minds changed how many times, or to reconstruct long edit histories.

Jan 20, 2022 • 26min
Book Review: Which Country Has The World's Best Health Care?
https://astralcodexten.substack.com/p/book-review-which-country-has-the I. If you’re like me, all you’ve heard about international health care systems is “America sucks and should feel bad, everyone else is probably fine or whatever”. Is there more we can learn? Our guide to this question will be Which Country Has The World’s Best Health Care, by Dr. Ezekiel Emanuel. Emanuel is a professor of bioethics, but I’ve been told to be less reflexively hostile to bioethicists. He got in trouble a few years ago for a comment that got summed up as “life after 75 is not worth living”, but he never used those exact words, and his point about the dangers of excessive life-prolonging medical care is well-taken. He opposes euthanasia, which I interpret as demanding state-sponsored coercive violence to prevent torture victims from escaping, but I know other people interpret it differently. And he’s the brother of former Chicago mayor Rahm Emanuel, but ... nope, can’t think of any extenuating circumstances for this one. Still, Emanuel is one of a very few people qualified to compare international health systems. And