Scott explores the 'missing heritability' problem in genetics, where twin studies show traits like IQ and educational attainment are highly heritable but newer genomic methods find much lower heritability, analyzing various potential explanations for this discrepancy. Longer summary

The post examines the 'missing heritability' problem in genetics, where twin studies consistently show behavioral traits like IQ and educational attainment are substantially heritable (around 40-60%), while newer genomic methods find much lower heritability (around 15-20%). Scott reviews the history of behavioral genetics research, explains various study methodologies and their potential biases, and analyzes different hypotheses for this discrepancy. He examines whether twin studies might be flawed, whether newer methods might be missing important genetic effects, and whether educational attainment might be an unusually problematic trait to study. While acknowledging remaining mysteries, he tentatively concludes that twin studies are probably largely correct and that newer methods may be missing rare variants and genetic interactions. Shorter summary

Scott Alexander shares 57 diverse links and brief commentaries on topics ranging from politics and psychology to technology and culture. Longer summary

Scott Alexander presents a collection of 57 interesting links and brief commentaries on various topics, including politics, psychology, technology, culture, and science. The post covers a wide range of subjects, from corporate takeovers and European stereotypes to psychedelic research and AI developments. It also includes discussions on mental health, education, and current events. Shorter summary

Scott shares and comments on various links covering topics like startups, science, academia, social issues and charitable giving, with a focus on rationalist and effective altruist causes. Longer summary

This is a links post collecting various interesting articles and news from around the internet. Topics include a startup betting on marriage success, privacy/encryption history, climate change policy, scientific studies on aging and obesity, academic criticism, college renaming controversies, drug use surveys, and charitable giving. The post has Scott's typical style of briefly summarizing each link while adding his own commentary and connections between topics. The post ends with several charitable giving opportunities related to rationalist and effective altruist organizations. Shorter summary

A collection of interesting links covering science, education, politics and culture, with Scott Alexander's commentary and analysis on each. Longer summary

This is a links post collecting various interesting articles and studies. Notable topics include: an IQ study predicting US gains, a social site called Omnilibrium trying to improve filtering, FDA allowing 23andMe genetic tests at higher prices, evidence about pre-K education having potentially negative effects, and news about polio eradication. The post also covers topics like genetic engineering in China, studies about police reducing crime, and cultural analysis of urban violence. Many links come with Scott's brief commentary or analysis putting them in context. Shorter summary

Scott shares a diverse collection of links and brief commentaries on scientific studies, political news, cultural phenomena, and personal observations across various fields. Longer summary

This post is a collection of links and brief commentaries on various topics, including scientific studies, political news, and cultural phenomena. Scott covers a wide range of subjects, from the effects of ultraviolet radiation on weight gain to the decline of cults, global inequality trends, genetic links to violent crime, and the concept of competitive governance. He also discusses recent political events, media controversies, and developments in artificial intelligence research. The post includes personal observations, book recommendations, and reflections on social dynamics within online communities. Shorter summary

Scott Alexander shares a diverse collection of links and brief commentary on topics ranging from climate change to social science research, with both serious analysis and humorous observations. Longer summary

This post is a collection of interesting links and brief commentary on various topics. Scott Alexander covers a wide range of subjects, including climate change, economics, social science research, technology, and current events. He shares studies, news articles, and personal observations, often with a skeptical or analytical perspective. The post includes both serious topics and more lighthearted content, reflecting Scott's diverse interests and tendency to explore unconventional ideas. Shorter summary