Astral Codex Ten Podcast

Freddie DeBoer challenges the narrative of failing education in America in 'The Cult Of Smart'. He argues that education isn't declining, race and gender gaps are stable or decreasing. Critiques tough education reforms and advocates for reevaluation of meritocracy. Explores universal pre-K benefits and critiques traditional schooling system for limiting freedom and creativity.

https://astralcodexten.substack.com/p/covidvitamin-d-much-more-than-you Most health articles ask you to act on their opinions. I am specifically asking you not to act on mine. In a moment, I'll tell you whether or not I think Vitamin D prevents or treats coronavirus. But I'll give you a free spoiler: I am less than 100% certain of what I'm about to say. So if you want to take Vitamin D, take it. If it does prevent or cure coronavirus, great. If not, the worst that will happen is you'll have slightly better bone health. I can't stress how much I don't want to be those people who said they couldn't prove face masks helped so you must not use face masks. Just ignore everything I'm saying, do a quick cost-benefit calculation, and take Vitamin D. That having been said: Lots of people think Vitamin D treats coronavirus, and some of them have good evidence. For example, infection rate from coronavirus seems latitude dependent; in general, the further north an area, the worse it's been hit. Northern areas get less sunlight, and sunlight helps produce Vitamin D, so whenever you see a disease that's worse at high latitudes, Vitamin D should be on your short list of potential causes. Also - in the US, COVID seemed to remit with the summer and worsen over the winter. It's hard to distinguish this from general exponential growth and from the effect of playing ping-pong with gradually loosening/ tightening lockdowns, but the US spike this winter was pretty dramatic. Most Northern Hemisphere countries show such a pattern, most equatorial countries don't, and some Southern Hemisphere countries arguably show the opposite. Whenever you see a disease that's better in summer and worse in winter, Vitamin D is one of the possible culprits.

https://astralcodexten.substack.com/p/coronavirus-links-discussion-open So far there have been three waves of coronavirus cases in the US. The first wave was the beginning, when it caught us unprepared. The second wave was in July, when we got sloppy and lifted lockdowns too soon. The third wave was November through January, because the coronavirus is seasonal and winter is its season (also probably the holidays). From Johns Hopkins CRC: A fourth wave may hit in March, when the more contagious B117 strain from the UK takes over. Expect more shelter-in-place orders, school shutdowns, and a spike in cases at least the size of July's, maybe December's. That will last until May-ish, when the usual control system (more virus -> stricter lockdowns -> less virus -> looser lockdowns -> more virus) moves back into the "less virus" stage. Also coronavirus is seasonal and summer isn't its season. Also by that time a decent chunk of the population will be vaccinated. The worst consequences of the UK strain should burn themselves out by late spring.

https://astralcodexten.substack.com/p/statement-on-new-york-times-article There was recently a negative article about me and my blog in the New York Times. Most of you already know the history behind this, but for anyone referred here by NYT, this is where I give my side and defend myself. Like many people in the early 2000s, I started a blog when I was in college. To stay anonymous, I wrote it under my first and middle names – Scott Alexander – while leaving out my last name. I continued writing in it through medical school, residency, and until the present. Although I've never personally been involved in the tech industry, my blog became very popular among people in tech because it discussed ideas centering around scientific and technological progress, especially artificial intelligence. In early 2020, I learned the New York Times wanted to write an article about me. They had discovered my real name and wanted to reveal it to the world. Their original pitch – and I don't know if it was true or not – was that they were interested in how I warned about the coronavirus pandemic very early and urged people to wear face masks before this was standard advice.

https://astralcodexten.substack.com/p/the-precision-of-sensory-evidence In earlier posts, I've expressed confusion about two competing models of depression. In one - supported by an analogy to mania and various forms of sensory and motor disturbance - it's inappropriately low neural confidence levels. In the other - supported by common sense - it's a highly-confident global prior on negative perceptions and events - a bias to interpret incoming information in a threat-related way. Both of these models had a lot going for them. But they didn't really fit together. Van der Bergh et al's Better Safe Than Sorry: A Common Signature Of General Vulnerability For Psychopathology, in the October issue of Perspectives In Psychological Science, tries to tie the pieces together into a more ambitious theory of negative emotionality, including depression, anxiety and trauma. Its solution is that these conditions are marked by a processing style that assigns unusually low precision to sensory evidence. All perception and cognition is the combination of evidence and priors. But in depression and otherwise neurotic people, the evidence is only a weak signal and the priors are a much stronger one.

[previously in sequence: List Of Fictional Drugs Banned By The FDA, More Fictional Drugs Banned By The FDA] VatiCoin: After a thousand years, the Catholic Church discovered how to do indulgences right: as tradable digital tokens. Not only does an initial coin offering provide better price discovery than the Pope picking a random number, but sinners who do good deeds later can sell their coins to someone else. Subject of several court cases about whether someone's VatiCoins go to their heirs upon their deaths or whether this would defeat the point; current holders are advised to avoid the problem by not disclosing the password to their wallet. Banned because: Frequently used as a hedge against other cryptocurrencies involved in crime and pornography. Driverify: Developed by Tesla's self-driving-car division. Cars mine Driverify with spare computing power while idling, and spend it bidding against each other for right-of-way if they arrive at a four-way stop sign at the same time (users can preprogram how aggressively their cars bid in these auctions). Compatible Teslas would also have fenders that send electrical pulses, transmitting data into the receiver fender of another car. If two Teslas got in a fender-bender, they could use their now-connected fenders to have the at-fault car recompense the victim by transferring an appropriate amount of Driverify.

[previously in sequence: Taxometrics, Dynamical Systems. Epistemic status: speculative. This should go without saying, but when I talk about "failures" in this post, I mean failures of biological processes, as in the term "congestive heart failure"; I don't mean to accuse people with psychiatric conditions of being failures.] I. Most psychiatric disorders are at least partly genetic. Some, like schizophrenia and ADHD, are very genetic, probably 80% plus. This is strange, because having psychiatric disorders seems bad, so you would expect evolution to have eliminated those genes. Researchers looking into this question argue between two hypotheses. First, a failure. Evolution is imperfect, so some bad genes manage to slip through. This sounds dismissive, but it's definitely true to some degree. Thousands of different genes contribute to risk for conditions like ADHD and schizophrenia, with each adding only a tiny amount of risk. When a gene is only very slightly bad, it takes evolution millennia to get rid of it, and during those millennia people are getting new very-slightly-bad mutations, so it all balances out at a certain level of bad genes per generation. Those bad genes are sufficient to explain the existing amount of ADHD and schizophrenia; they're just evolution not working as well as we'd hope.

I. Ezra Klein is great. I know a lot of people throw shade on him for founding Vox. But as Van Gogh said about God creating the world, "We must not hold it against Him; only a master could make such a mistake". Ezra is a master and I was happy to be able to read his Why We're Polarized. (Amazon recommended it to me as "Why We're Polarized By Ezra Klein", which I would also have been happy to read.) Did you know that seventy years ago, our grandparents were having an underpolarization crisis? True! In 1950, the American Political Science Association "released a call to arms...pleading for a more polarized political system". The report argued that "the parties contain too much diversity of opinion and work together too easily, leaving voters confused about who to vote for and why". Everyone agreed with each other so much, and compromised so readily, that supporting one party over the other seemed almost pointless.

Thanks to everyone who commented last week with prediction markets I missed. Two of them seemed to be especially interesting. Polymarket is another cryptocurrency-based prediction market. It's got about two dozen contracts open, and some of them are pretty big - $5 million plus! With that kind of money, we ought to be seeing some really good predicting! We're...not. Either there's a 6% chance that Donald Trump will be president again by March 31, or something's gone wrong. Probably it's the second one. I tried to bet against Trump, but getting money into the market was pretty hard. You need USDCoins, a stablecoin related to Ethereum. Polymarket tries to let you buy them directly, but their app wanted me to give them a security code which never showed up, so I gave up on this. Instead I bought some USDC at Coinbase and tried to send them over. But along with the usual Ethereum gas fees, they have something called a relayer, which is supposed to collect my money and put it in my account. And it's apparently heavily backed up, and after two days my money is nowhere to be seen (though I believe them when they say that they're trying their hardest and it will probably percolate through the Ethereum network someday). Maybe everyone's having these kinds of issues and this is why the Trump contract hasn't adjusted? I'm not sure. I will keep you updated if my money ever materializes.

I heard from a journalist yesterday after writing yesterday's post on WebMD. They've been trying to write a coronavirus article worthy of Zvi or any of the other illegibly smart people writing on the pandemic. Apparently the bottleneck is sources. In most journalistic settings, you can't just write "here's what I think". You have to write "here's what my source, a recognized expert, said when I interviewed them". And the experts are pretty sparing with their interviews for contrarian stories. The way my correspondent described it: sources don't usually get to approve the way they're quoted in an article, or to see it before it gets published. So they're really cagey about saying anything that might get misinterpreted. Maybe their real opinion is that X is a hard question, there are good points on both sides, but overall they think it probably isn't true. But if a reporter wants to write "X Is Dumb And All Epidemiologists Are Idiots For Believing It", they can slice and dice your interview until your cautiously-skeptical-of-X statement sounds like you're backing them up. So experts end up paranoid about saying potentially-controversial-sounding things to reporters. And since reporters can't write without sources, it's hard for them to write anything controversial about epidemiology.