Astral Codex Ten Podcast

https://slatestarcodex.com/2020/03/17/book-review-hoover/ You probably remember Herbert Hoover as the guy who bungled the Great Depression. Maybe you shouldn't. Maybe you should remember him as a bold explorer looking for silver in the jungles of Burma. Or as the heroic defender of Tientsin during the Boxer Rebellion. Or as a dashing pirate-philanthropist, gallivanting around the world, saving millions of lives wherever he went. Or as the temporary dictator of Europe. Or as a geologist, or a bank tycoon, or author of the premier 1900s textbook on metallurgy. How did a backwards orphan son of a blacksmith, dropped in the middle of a forgotten spot in the Midwest, grow up to be a captain of industry and a US President? How did he become such a towering figure in the history of philanthropy that biographer Kenneth Whyte claims "the number of lives Hoover saved through his various humanitarian campaigns might exceed 100 million, a record of benevolence unlike anything in human history"? To find out, I picked up Whyte's Hoover: An Extraordinary Life In Extraordinary Times. Herbert Hoover was born in 1874 to poor parents in the tiny Quaker farming community of West Branch, Iowa. His father was a blacksmith, his mother a schoolteacher. His childhood was strict. Magazines and novels were banned; acceptable reading material included the Bible and Prohibitionist pamphlets. His hobby was collecting oddly shaped sticks. His father dies when he is 6, his mother when he is 10. The orphaned Hoover and his two siblings are shuttled from relative to relative. He spends one summer on the Osage Indian Reservation in Oklahoma, living with an uncle who worked for the Department of Indian Affairs. Another year passes on a pig farm with his Uncle Allen. In 1885, he is more permanently adopted by his Uncle John, a doctor and businessman helping found a Quaker colony in Oregon. Hoover's various guardians are dutiful but distant; they never abuse or neglect him, but treat him more as an extra pair of hands around the house than as someone to be loved and cherished. Hoover reciprocates in kind, doing what is expected of him but excelling neither in school nor anywhere else.

https://slatestarcodex.com/2020/03/10/for-then-against-high-saturated-fat-diets/ I. In the 1800s, the average US man weighed about 155 lbs. Today, he weighs about 195. The change is even starker at the extremes. Someone at the 90th percentile of weight back then weighed about 185 lbs; today, he would weigh 320 lbs. Back then, about 1% of men were obese. Today, about 25% are. This puts a lot of modern dietary advice into perspective. For example, lots of people think low-carb is the solution to everything. But people in the 1800s ate almost 50% more bread than we do today, and still had almost no obesity. Other people think paleo is the solution to everything, but Americans in the 1800s ate a diet heavy in bread, milk, potatoes, and vegetables, and relatively low in red meat and other more caveman-recognizable foods. Intermittent fasting – again, cool idea, but your great-grandfather wasn't doing that, and he had a 1% obesity risk. This isn't to say those diets can't work. Just that if they work, they're hacks. They treat the symptoms, not the underlying problem. Something went terribly wrong in US nutrition between 1900 and today, and all this talk about low-carb and intermittent fasting and so on are skew to that thing. Given that 1800s Americans seem to have effortlessly maintained near-zero obesity rates while eating foods a lot like the ones we eat today, maybe we should stop trying to figure out what cavemen were doing, and start trying to figure out what Great-Grandpa was doing, which sounds a lot easier.

https://slatestarcodex.com/2017/09/05/book-review-surfing-uncertainty/ [Related to: It's Bayes All The Way Up, Why Are Transgender People Immune To Optical Illusions?, Can We Link Perception And Cognition?] I. Sometimes I have the fantasy of being able to glut myself on Knowledge. I imagine meeting a time traveler from 2500, who takes pity on me and gives me a book from the future where all my questions have been answered, one after another. What's consciousness? That's in Chapter 5. How did something arise out of nothing? Chapter 7. It all makes perfect intuitive sense and is fully vouched by unimpeachable authorities. I assume something like this is how everyone spends their first couple of days in Heaven, whatever it is they do for the rest of Eternity. And every so often, my fantasy comes true. Not by time travel or divine intervention, but by failing so badly at paying attention to the literature that by the time I realize people are working on a problem it's already been investigated, experimented upon, organized into a paradigm, tested, and then placed in a nice package and wrapped up with a pretty pink bow so I can enjoy it all at once. The predictive processing model is one of these well-wrapped packages. Unbeknownst to me, over the past decade or so neuroscientists have come up with a real theory of how the brain works – a real unifying framework theory like Darwin's or Einstein's – and it's beautiful and it makes complete sense. Surfing Uncertainty isn't pop science and isn't easy reading. Sometimes it's on the

https://slatestarcodex.com/2020/03/06/socratic-grilling/ Imagine an kid in school first hearing about germ theory. The conversation might go something like this: Teacher: Many diseases like the common cold are spread by germs, when one infected person contacts another. Student: But I got a cold a few weeks ago, and I never touch anyone except my family members. And none of them were sick. Teacher: You don't need to actually touch someone. Sometimes it can spread through mucus droplets in the air. Student: And one time I was camping in the woods for a month, and then I got a cold, even though I hadn't been around anybody. Teacher: If it was spring, you might have gotten allergies. Allergies can feel a lot like a cold, but they aren't spread by germs. Student: It was fall.

https://slatestarcodex.com/2020/03/02/coronavirus-links-speculation-open-thread/ [Epistemic status: Very weak – I'm still trying to figure all of this out. Some things in here will almost certainly be wrong. Please don't let this overrule what government agencies or your common sense are telling you. For a more careful guide to the coronavirus and what to do about it, see here.] Prepping For a description of why you might want to prep, see Putanumonit: Seeing The Smoke. For a description of how to prep, see this article by Kelsey. For a really intense guide by a professional prepper, see here. But there's such a thing as being too intense. You probably won't need to store water – the water kept running in Wuhan. You probably won't need a generator – Wuhan has electricity. The most important thing seems to be food (and toiletries, and other necessities). If the epidemic gets bad, you'll want food so you can avoid going out to coronavirus-filled supermarkets. And if you get the coronavirus and are feeling sick, you'll want food at home so you don't have to get too far out of bed.

https://slatestarcodex.com/2020/02/27/book-review-the-seven-principles-for-making-marriage-work/ I. John Gottman is a legendary figure, and the legend is told best by John Gottman. He describes wading into the field of marital counseling as a young psychology postdoc, only to find it was a total mess: When we began our research, the wide range of marital therapies based on conflict resolution shared a very high level of relapse. In fact, the best of this type of marital therapy, conducted by Neil Jacobson, had only a 35 to 50 percent success rate. In other words, his own studies showed that only 35 to 50 percent of couples saw a meaningful improvement in their marriages as a result of the therapy. A year later, less than half of that group — or just 18 to 25 percent of all couples who entered therapy — retained these benefits. A while ago, Consumer Reports surveyed a large sample of its members on their experience with all kinds of psychotherapists. Most therapists got very high customer-satisfaction marks—except for the marital ones, who received very poor ratings. Though this survey did not qualify as rigorous scientific research, it confirmed what most professionals in the field already knew: in the long run, marital therapy did not benefit the majority of couples. Gottman decided the field needed statistical rigor, and that he – a former MIT math major – was exactly the guy to enforce it. He set up a model apartment in his University of Washington research center – affectionately called "the Love Lab", and invited hundreds of couples to spend a few days there – observed, videotaped, and attached to electrodes collecting information on every detail of their physiology. While at the lab, the couples went through their ordinary lives. They experienced love, hatred, romantic dinners, screaming matches, and occasionally self-transformation. Then Gottman monitored them for years, seeing who made things work and who got divorced. Did you know that if a husband fails to acknowledge his wife's feelings during an argument, there is an 81% chance it will damage the marriage? Or that 69% of marital conflicts are about long-term problems rather than specific situations? John Gottman knows all of this and much, much more.

https://slatestarcodex.com/2020/02/24/book-review-just-giving/ I. Traditional book reviews tend to focus on a single book, such as Just Giving by Rob Reich. We ought, however, to be reviewing a broader question: what is the role of books in a liberal democratic society? And what role should they play? Books were first invented during the early Bronze Age. Plato states people fiercely opposed the first books; in his dialogue Phaedrus, he recalls the Egyptian priests' objection to early writing: [Writing] will create forgetfulness in the learners' souls, because they will not use their memories; they will trust to the external written characters and not remember of themselves. The specific which you have discovered is an aid not to memory, but to reminiscence, and you give your disciples not truth, but only the semblance of truth; they will be hearers of many things and will have learned nothing; they will appear to be omniscient and will generally know nothing; they will be tiresome company, having the show of wisdom without the reality. Contrast the Egyptian scribes' reception with the ceaseless praise given to the authors of our age. Rather than asking about the purposes of writing and the power of authors, we tend instead to celebrate writers, large and small, for their brilliance. But in our age, these are questions we should pose with greater urgency. Scholarly literature like Just Giving is an unaccountable, nontransparent, and perpetual exercise of power. It deserves more criticism than it has received.

https://slatestarcodex.com/2020/02/17/sleep-support-an-individual-randomized-controlled-trial/ I worry my sleep quality isn't great. On weekends, no matter when I go to bed, I sleep until 11 or 12. When I wake up, I feel like I've overslept. But if I try to make myself get up earlier, I feel angry and want to go back to sleep. A supplement company I trust, Nootropics Depot, recently released a new product called Sleep Support. It advertises that, along with helping you fall asleep faster, it can "improve sleep quality" by "improv[ing] sleep architecture, allowing you to achieve higher quality and more refreshing sleep." I decided to try it. The first night I took it, I woke up naturally at 9 the next morning, with no desire to go back to sleep. This has never happened before. It shocked me. And the next morning, the same thing happened. I started recommending the supplement to all my friends, some of whom also reported good results. I decided the next step was to do a randomized controlled trial. I obtained sugar pills, and put both the sugar pills and the Sleep Support pills inside bigger capsules so I couldn't tell which was which. The recommended dose was two Sleep Support pills per night, so for my 24 night trial I created 12 groups of two Sleep Support pills and 12 groups of two placebo pills.

https://slatestarcodex.com/2020/02/14/addendum-to-targeting-meritocracy/ I've always been dissatisfied with Targeting Meritocracy and the comments it got. My position seemed so obvious to me – and the opposite position so obvious to other people – that we both had to be missing something. Reading it over, I think I was missing the idea of conflict vs mistake theory. I wrote the post from a mistake theory perspective. The government exists to figure out how to solve problems. Good government officials are the ones who can figure out solutions and implement them effectively. That means we want people who are smart and competent. Since meritocracy means promoting the smartest and most competent people, it is tautologically correct. The only conceivable problem is if we make mistakes in judging intelligence and competence, which is what I spend the rest of the post worrying about.

https://slatestarcodex.com/2020/02/12/confirmation-bias-as-misfire-of-normal-bayesian-reasoning/ From the subreddit: Humans Are Hardwired To Dismiss Facts That Don't Fit Their Worldview. Once you get through the preliminary Trump supporter and anti-vaxxer denunciations, it turns out to be an attempt at an evo psych explanation of confirmation bias: Our ancestors evolved in small groups, where cooperation and persuasion had at least as much to do with reproductive success as holding accurate factual beliefs about the world. Assimilation into one's tribe required assimilation into the group's ideological belief system. An instinctive bias in favor of one's in-group" and its worldview is deeply ingrained in human psychology. I think the article as a whole makes good points, but I'm increasingly uncertain that confirmation bias can be separated from normal reasoning. Suppose that one of my friends says she saw a coyote walk by her house in Berkeley. I know there are coyotes in the hills outside Berkeley, so I am not too surprised; I believe her.