And I’ll try to post my Oakland guide tomorrow. 2: New meetups for the coming month: Berkeley, Beijing, and Kansas City. Check the meetup list for details.

[This is one of the finalists in the 2026 book review contest, written by an ACX reader who will remain anonymous until after voting is done. I’ll be posting about one of these a week for several ...

A friend asked me to investigate the following mystery: why do 5-10% of skulls from 10,000 BC to 3,000 BC, all over the world, have holes in them? Why do bone growth patterns indicate that most ...

[Sneak Peek] Declining Sperm Count: Much More Than You Wanted To Know ... Scott Alexander ...

An anonymous “editor” explains how a fat curate of his acquaintance had used torn pages from a small memorandum book as wadding paper while hunting; the few surviving pages of that memorandum, ...

Ajeya Cotra’s Biological Anchors report was the landmark AI timelines forecast of the early 2020s. In many ways, it was prescient - it nailed the scaling hypothesis, predicted the current AI boom, and ...

This is a guest post by Drew Housman, whose review of Dominion earned finalist status in the 2024 ACX book review contest. If you are unsuccessful for long enough on your pregnancy journey, and none ...

This is a guest post by ACX grantee Josh Morrison of 1DaySooner. AI superforecasters are coming. Within a few years, the average person will have the equivalent of a Nate Silver in their pocket, ready ...

I. At Long Last, We Have Created Neuralese Recurrence, From The Classic Sci-Fi Novel “Don’t Create Neuralese Recurrence” In the public debates after the release of AI 2027, some people accused us of ...

Here’s a list of things I updated on after working on the scenario. Some of these are discussed in more detail in the supplements, including the compute forecast, timelines forecast, takeoff forecast, ...

The San Franciscans at this moment, living in their rag palaces, or renting them at figures that would have sounded possible in the Arabian Nights . . . seemed more like madmen than ever. A ...

You’ve probably heard AI is a “black box”. No one knows how it works. Researchers simulate a weird type of pseudo-neural-tissue, “reward” it a little every time it becomes a little more like the AI ...