Scott Alexander examines whether psychiatric conditions result from evolutionary failures or tradeoffs, proposing that most disorders involve a combination of both. Longer summary

Scott Alexander explores the nature of psychiatric conditions, discussing whether they result from evolutionary failures or tradeoffs. He presents evidence for both hypotheses, noting that recent research favors the failure hypothesis. However, he argues that some conditions likely involve both failures and tradeoffs. He uses analogies from justice systems and nuclear war scenarios to illustrate how failures and tradeoffs can interact. The post concludes by suggesting that most psychiatric disorders exist on a spectrum from mostly-tradeoff to mostly-failure, and critiques the neurodiversity movement's blanket statements about conditions like autism. Shorter summary

Scott Alexander presents a diverse collection of interesting links covering politics, science, history, and culture, with brief commentary on each item. Longer summary

A curated collection of interesting links spanning various topics, compiled by Scott Alexander. The post covers a wide range of subjects including political events, scientific studies, historical anecdotes, and cultural phenomena. Among the notable items are stories about medieval fighting myths, a massive Chinese ghost mall, Japanese parliament members' nationalism, and various statistical studies. The post maintains a light, often humorous tone while presenting these diverse pieces of information, occasionally adding brief commentary or connections between different items. Shorter summary