Astral Codex Ten Podcast
Consciousness is the great mystery. In search of answers, scientists have plumbed every edge case they can think of - sleep, comas, lucid dreams, LSD trips, meditative ecstasies, seizures, neurosurgeries, . Still, new stuff occasionally turns up. I assume is a troll (source: the guy has a frog avatar):
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I often disagree with Marginal Revolution, but made me a new level of angry:
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Many commenters responded to by challenging the claim that 1.2 million Americans died of COVID...
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Five years later, we can’t stop talking about COVID. Remember lockdowns? The conflicting guidelines about masks - don’t wear them! Wear them! Maybe wear them! School closures, remote learning, learning loss, something about teachers’ unions. That one Vox article on how worrying about COVID was anti-Chinese racism. The time Trump sort of half-suggested injecting disinfectants. Hydroxychloroquine, ivermectin, fluvoxamine, Paxlovid. Those jerks who tried to pressure you into getting vaccines, or those other jerks who wouldn’t get vaccines even though it put everyone else at risk. Anthony...
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Bryan Caplan’s is like the Bible. You already know what it says. You’ve already decided whether you believe or not. Do you really have to read it all the way through? But when you’re going through a rough patch in your life, sometimes it helps to pick up a Bible and look for pearls of forgotten wisdom. That’s where I am now. Having twins is a lot of work. My wife does most of it. My nanny does most of what’s left. Even so, the remaining few hours a day leave me exhausted. I decided to read the canonical book on how having kids is easier and more fun than you think, to see if maybe I...
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, and a few names always come up. and are unpopular, but if I read them with an open mind, I always end up sympathetic - neither lifestyle is persecuted in my particular corner of society, but the Redditors there have usually been through some crazy stuff, and I don’t begrudge them a place to vent. The one that really floors me is . The denizens of /r/petfree don’t like pets. Their particular complaints vary, but most common are: Some stores either allow pets or don’t enforce bans on them, and then there are pets go in those stores, and they are dirty and annoying. Some parks either...
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Thanks to everyone who commented on .
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Some of the more unhinged writing on superintelligence pictures AI doing things that seem like magic. Crossing air gaps to escape its data center. Building nanomachines from simple components. Plowing through physical bottlenecks to revolutionize the economy in months. More sober thinkers point out that these things might be physically impossible. You can’t do physically impossible things, even if you’re very smart. No, say the speculators, you don’t understand. Everything is physically impossible when you’re 800 IQ points too dumb to figure it out. A chimp might feel secure that...
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Cathy Young’s new hit piece on Curtis Yarvin (aka Mencius Moldbug) doesn’t mince words. Titled , it describes him as an "inept", "not exactly coherent" "trollish, ill-informed pseudo-intellectual" notable for his "woefully superficial knowledge and utter ignorance". Yarvin’s fans counter that if you look deeper, he has good responses to Young’s objections: Both sides are right. The synthesis is that Moldbug sold out. In the late 2000s, Moldbug wrote some genuinely interesting speculations on novel sci-fi variants of autocracy. Admitting that the dictatorships of the 20th century were...
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President Trump’s approval rating to near-historic lows. With economic disruption from the tariffs likely to hit next month, his numbers will probably get even worse; this administration could reach unprecedented levels of unpopularity. If I were a far-right populist, I would be thinking hard about a strategy to prevent the blowback from crippling the movement. Such a strategy is easy to come by. Anger over DOGE and deportations has a natural floor. If Trump’s base starts abandoning him, it will be because of the tariffs. But tariffs aren’t a load-bearing part of the MAGA platform....
info_outlineIn Ballad of the White Horse, G.K. Chesterton describes the Virgin Mary:
Her face was like an open word
When brave men speak and choose,
The very colours of her coat
Were better than good news.
Why the colors of her coat?
The medievals took their dyes very seriously. This was before modern chemistry, so you had to try hard if you wanted good colors. Try hard they did; they famously used literal gold, hammered into ultrathin sheets, to make golden highlights.
Blue was another tough one. You could do mediocre, half-faded blues with azurite. But if you wanted perfect blue, the color of the heavens on a clear evening, you needed ultramarine.
Here is the process for getting ultramarine. First, go to Afghanistan. Keep in mind, you start in England or France or wherever. Afghanistan is four thousand miles away. Your path takes you through tall mountains, burning deserts, and several dozen Muslim countries that are still pissed about the whole Crusades thing. Still alive? After you arrive, climb 7,000 feet in the mountains of Kuran Wa Munjan until you reach the mines of Sar-i-Sang. There, in a freezing desert, the wretched of the earth work themselves to an early grave breaking apart the rocks of Badakhshan to produce a few hundred kilograms per year of blue stone - the only lapis lazuli production in the known world.
Buy the stone and retrace your path through the burning deserts and vengeful Muslims until you’re back in England or France or wherever. Still alive? That was the easy part. Now you need to go through a chemical extraction process that makes the Philosopher's Stone look like freshman chem lab. "The lengthy process of pulverization, sifting, and washing to produce ultramarine makes the natural pigment … roughly ten times more expensive than the stone it came from."
Finally you have ultramarine! How much? I can’t find good numbers, but Claude estimates that the ultramarine production of all of medieval Europe was around the order of 30 kg per year - not enough to paint a medium-sized wall. Ultramarine had to be saved for ultra-high-value applications.
In practice, the medievals converged on a single use case - painting the Virgin Mary’s coat.