Astral Codex Ten Podcast

https://astralcodexten.substack.com/p/trapped-priors-as-a-basic-problem   Introduction and review Last month I talked about van der Bergh et al’s work on the precision of sensory evidence, which introduced the idea of a trapped prior. I think this concept has far-reaching implications for the rationalist project as a whole. I want to re-derive it, explain it more intuitively, then talk about why it might be relevant for things like intellectual, political and religious biases. To review: the brain combines raw experience (eg sensations, memories) with context (eg priors, expectations, other related sensations and memories) to produce perceptions. You don’t notice this process; you are only able to consciously register the final perception, which feels exactly like raw experience. A typical optical illusion. The top chess set and the bottom chess set are the same color (grayish). But the top appears white and the bottom black because of the context (darker vs. lighter background). You perceive not the raw experience (grayish color) but the final perception modulated by context; to your conscious mind, it just seems like a brute fact that the top is white and the bottom black, and it is hard to convince yourself otherwise. Or: maybe you feel like you are using a particular context independent channel (eg hearing). Unbeknownst to you, the information in that channel is being context-modulated by the inputs of a different channel (eg vision). You don’t feel like “this is what I’m hearing, but my vision tells me differently, so I’ll compromise”. You feel like “this is exactly what I heard, with my ears, in a way vision didn’t affect at all”.

https://astralcodexten.substack.com/p/the-consequences-of-radical-reform   The thread that runs from Edmund Burke to James Scott and Seeing Like A State goes: systems that evolve organically are well-adapted to their purpose. Cultures, ancient traditions, and long-lasting institutions contain irreplaceable wisdom. If some reformer or technocrat who thinks he's the smartest guy in the room sweeps them aside and replaces them with some clever theory he just came up with, he'll make everything much worse. That's why collective farming, Brasilia, and Robert Moses worked worse than ordinary people doing ordinary things. An alternative thread runs through the French Revolution, social activism, and modern complaints about vetocracy. Its thesis: entrenched interests are constantly blocking necessary change. If only there were some centralized authority powerful enough to sweep them away and do all the changes we know we need, everything would be great. This was the vibe I got from Gabriel Over The White House (sorry, subscriber-only post), the movie exhorting FDR to become a fascist dictator. So many obviously good policies had built up behind the veto point that we needed a Great Man to come in, sweep them away, and satisfy the people's cries for justice. Obviously at its worst this thread can lead to authoritarianism.

https://astralcodexten.substack.com/p/highlights-from-the-comments-on-class   To my surprise, we have some genuine upper-class people reading this blog. Here’s what they thought, starting with Cabayun: While I hardly grew up in the upper-upper world Fussell is describing (though my grandparents and to a lesser extend parents surely did), a lot of the particulars stood out to me as right on the money (the food, names, boring social scene almost by design, locations, house/furniture descriptions). However, in my life I've seen less of the "nothing to prove" attitude, as even the upper class scene I'm a part of is full of social jockeying (particularly around marriage) among people who don't have to ever think about money. I'd also anecdotally report sky-high high rates of alcoholism and depression that I vaguely theorize stem from most people being poorly equipped to handle a completely vacuum of purpose or financial drive to succeed. And Crotchety Crank: I'm likely in Fussell's upper upper [and] both generations above mine have already read [Fussell’s book]! One referred affectionately to "old fussy Fussell." They read it as somewhat satirical, and certainly inaccurate/unfair in places (for example, one person specifically objected to the "bland food" quip), but unfair in the same way that the Onion is unfair to the targets of its satire: even when it's exaggerated, it's exaggerated in a revealing direction. Could say much more, but maybe I'll save it for an open thread. And Arrow63: Upper class here, which is definitely middle class to say but I think it's ok since I'm anonymous. I would say that the one big change to the class system he outlined is that new money can definitely buy its way to the upper class. This was unthinkable for centuries but in the money obsessed current age is quite doable. Of course there is a world of difference between the my pillow guy and Henry Kravis so it's far from axiomatic that great wealth equals great class prestige. But where you used to see museum, presitigious university and music hall boards stuffed with Cabots and Astors those seats have been completely occupied by billionaires with maybe one or two exceptions for old times' sake. Get on a couple of those and you have risen to the top of the class hierarchy.

https://astralcodexten.substack.com/p/highlights-from-the-comments-on-march   [link back to the original links post: here] On the article about privateers, local naval expert Bean writes: It's time for the standard disclaimer any time Proceedings comes up: Proceedings is intended as a forum for discussion of matters of interest to naval officers, and it is not peer reviewed. Often very not peer reviewed. Like in this case. Please don't judge the USNI on the basis of this stuff. They do a lot of good work. And yes, it is that stupid. First, privateering is probably illegal today. The US didn't sign the 1856 Paris declaration outlawing it, but the ban is almost certainly considered customary international law today, and thus binding on the US, too. (International law is very weird.) Second, it makes no sense. It was something that people did in an era when the ability of the state to do things was sharply constrained, and it was never all that profitable. These days, the government is a lot more effective, and if it wants to hunt Chinese commerce (never mind the issues about who owns the cargo, which is rather different in the days of worldwide communications and the shipping container) it will make auxiliary commerce raiders of its own. There's definitely no need to have a DDG sit outside a Brazilian port waiting. Take any reasonable civilian ship (big yacht, fishing boat, tug, whatever) and fit it with a couple of 40mm guns and a boarding party. Have it do the waiting instead. And our other defense expert, John Schilling, writes:

https://astralcodexten.substack.com/p/links-for-march   Warning: 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, so you may want to read this online instead of in an email, to catch the edits. Some of these are from my six-month backlog and may be outdated. 1: From a colonel writing for the US Naval Institute - Unleash The Privateers! “The United States should issue letters of marque to fight Chinese aggression at sea.” 2: Elizabeth (AcesoUnderGlass) on what she learned by studying the recession of 1973. “My best guess is that something was going wrong in the US and world economy well before 1971, but the market was not being allowed to adjust. Breaking Bretton Woods took the finger out of the dyke and everything fluctuated wildly for a few years until the world reached a new equilibrium.” 3: There’s been a lot of anecdotal evidence that hurricanes have gotten stronger in recent years; a new study confirms that the rate at which hurricanes qualify as “major” (winds above 100 knots) goes up by about 8% per decade. 4: Honduras is working on the charter city of Prospera, a "semi-autonomous" "hub for sustainable economic development" on the island of Roatan. See their goals here - eg it takes 17 steps, 32 days, and $12,000 to get a business permit elsewhere in Honduras, but should take only one step, one day, and $200 to get it in Prospera. Some locals seem skeptical and concerned, though the project denies it will use eminent domain. 5: The Ghetto Tarot is an artist’s attempt to replicate Tarot cards in the slums of Port-au-Prince, Haiti. EG:

https://astralcodexten.substack.com/p/shilling-for-big-mitochondria   In the 1930s, a shady outfit called Isabella Laboratories made a popular over-the-counter diet pill called Formula 281 (slogan: "281 for the too weighty one"). If you're familiar with any of: the 1930s, shady pharma, or diet pills, your next question will be "did it contain amphetamines?". Actually, no! It contained 2,4-dinitrophenol, a mitochondrial uncoupling agent. DNP is that rarest of birds: a weight-loss pill which really works, no diet or exercise required. About 100,000 people used it in the mid-1930s. On average, they lost about 2 to 5 pounds per week, for however many weeks they wanted to keep losing it. The formula stayed popular until it was banned by the FDA in 1938, about one second after Congress passed the law saying the FDA could ban things. What was the catch? Well, several catches, really. Many users went blind. Others got rashes, liver problems, kidney problems, or peripheral neuropathy. A few died horribly, apparently burning to death from the inside. Occasionally the DNP would just explode - the “di-nitro” of DNP is pretty similar to the “tri-nitro” of TNT, and it turns out that’s not a coincidence. As far as I know, DNP is the only substance to be banned by both the FDA and the Department of Homeland Security for unrelated reasons.

https://astralcodexten.substack.com/p/mantic-monday-scoring-rule-controversy   Metaculus scoring rule controversy Zvi considered using some Metaculus markets for his weekly coronavirus roundup, but was turned off by the scoring rules. Ross Rheingans-Yoo writes about the issue here. Everyone agrees Metaculus’ scoring rule is “proper”, a technical term meaning that it correctly incentivizes you to choose the probability you think is true. Zvi and Ross’s objection is that it doesn’t correctly incentivize you about whether to bet at all, or how much effort to put into betting. For example, on many questions, you can make guaranteed-positive bets - you’ll gain points on the prediction even if you were maximally wrong. If you were trying to maximize your Metaculus points, you would bet on all of these questions. If you were trying to maximize your Metaculus points in a limited amount of time, you might even bet on them without investigating at all. The person who spends one second picking a random number on a thousand questions will get more points than someone who spends an hour researching a really good answer to one question.

https://astralcodexten.substack.com/p/bay-area-plant-based-meat-reviews   By this point you’ve probably tried Impossible Burgers, and you know that restaurants can do some pretty impressive things with them. But there are so many interesting meat dishes - what if you want something other than a burger? This market is still developing, but I live in the Bay Area, which is probably its epicenter. And I’m mostly-vegetarian, so I have no choice but to try it out. I tried eight restaurants which offered unusual plant-based meat dishes. Here are my reviews. Unlike many other food critics, I freely admit I have no taste. There’s nothing about subtle flavors or quality ingredients in here, because I would get that stuff wrong. This is just about whether I, a mostly-vegetarian person who likes the taste of meat, felt like these plant-based meat options succeeded at resembling animal products. (yes, I’m deliberately mocking myself by publishing this the day after the post on classism)

https://astralcodexten.substack.com/p/a-modest-proposal-for-republicans   Read this first: Book Review: Fussell On Class Dear Republican Party: I hear you're having a post-Trump identity crisis. Your old platform of capitalism and liberty and whatever no longer excites people. Trump managed to excite people, but you don't know how to turn his personal appeal into a new platform. Most of what he said was offensive, blatantly false, or alienated more people than it won; absent his personal magic it seems like a losing combination. You seem to have picked up a few minority voters here and there, but you're not sure why, and you don't know how to build on this success. I hate you and you hate me. But maybe I would hate you less if you didn't suck. Also, the more confused you are, the more you flail around sabotaging everything. All else being equal, I'd rather you have a coherent interesting message, and make Democrats shape up to compete with you. So here's my recommendation: use the word "class". Pivot from mindless populist rage to a thoughtful campaign to fight classism. Yeah, yeah, "class" sounds Marxist, class warfare and all that, you're supposed to be against that kind of thing, right? Wrong. Economic class warfare is Marxist, but here in the US class isn't a purely economic concept. Class is also about culture. You're already doing class warfare, you're just doing it blindly and confusedly. Instead, do it openly, while using the words "class" and “classism”.

https://astralcodexten.substack.com/p/book-review-fussell-on-class   I. Paul Fussell wants to talk about class. (well, wanted, past tense, it's a 1983 book, we'll come back to that later) He recognizes this might not be the most popular topic. When he tells people he's writing a book on class in America, "it is as if I had said I am working on a book urging the beating to death of baby whales using the dead bodies of baby seals." America likes to think of itself as a classless society. Sure, there may be vast wealth inequality, but at least there's no nobility; beggars and billionaires are the same type of citizen. Paul Fussell will have none of it. He believes America has one of the most hypertrophied class systems in the world, that its formal equality has left a niche that an informal class system expanded to fill - and expanded, and expanded, until it surpassed the more-legible systems of Europe and became its own sort of homegrown monstrosity. He says he prefers the term "caste system" to "class system" when describing America, conveying as it does a more rigid and inescapable distinction, and that he uses "class" only out of respect for conventional usage.