Scott Alexander reviews a $100,000 debate on COVID-19 origins, where the zoonotic hypothesis unexpectedly won against the lab leak theory. Longer summary

Scott Alexander reviews a debate on the origins of COVID-19 between Saar Wilf, who supports the lab leak hypothesis, and Peter Miller, who argues for zoonotic origin. The debate was part of a $100,000 challenge by Wilf's Rootclaim project. Miller won decisively, with both judges ruling in favor of zoonotic origin. Alexander analyzes the debate format, arguments, and aftermath, discussing issues with Bayesian reasoning, extreme probabilities, and the challenges of resolving complex scientific questions through debate. Shorter summary

Scott Alexander shares a diverse collection of links on topics including architecture, history, science, politics, and economics, offering brief commentaries and insights on each. Longer summary

This post is a collection of various links and brief commentaries on diverse topics. Scott Alexander covers subjects ranging from architecture and history to science, politics, and economics. He discusses the Obama Presidential Library, unusual historical facts, effective altruism, AI policy careers, Bitcoin mining, and scientific studies on parenting and voter ID laws. The post also touches on topics like gender discrimination in tech, nuclear energy startups, and dietary trends. Throughout, Scott provides his characteristic mix of curiosity, skepticism, and humor in discussing these wide-ranging subjects. Shorter summary

Scott Alexander proposes a hierarchy of types of disagreements, from low-level meta-debate to high-level philosophical differences, and discusses how to engage in more productive arguments. Longer summary

Scott Alexander proposes a hierarchy of types of disagreements, expanding on Paul Graham's earlier work. He categorizes disagreements from meta-debate and social shaming at the bottom, through gotchas, single facts, and single studies, up to good-faith surveys of evidence and high-level generators of disagreement at the top. The post explains each level, discusses how to recognize and handle them, and suggests that engaging in higher-level disagreements can lead to mutual respect and potentially shift deeply held beliefs over time. Scott emphasizes the rarity of high-level disagreements in public discourse and the importance of understanding this hierarchy for more productive debates. Shorter summary