TracingWoodgrains and Michael Pershan analyze the effectiveness of ability grouping, acceleration, and personalization software in serving advanced students in the education system. Longer summary

This post is an entry to the Adversarial Collaboration Contest by TracingWoodgrains and Michael Pershan, discussing whether the education system adequately serves advanced students. It examines three main approaches: ability grouping, acceleration, and personalization software. The authors review research on each approach, discuss their pros and cons, and explore the tensions between different educational goals. They conclude with practical advice for parents, educators, and educational reformers. Shorter summary

Scott Alexander argues that the Dark Ages in Western Europe (500-1000 AD) did occur, presenting evidence of economic, demographic, and intellectual decline during this period. Longer summary

Scott Alexander argues against the claim that the Dark Ages never happened, presenting evidence for a significant decline in Western Europe from 500-1000 AD. He addresses common counterarguments, showing how they often rely on isolated demands for rigor or misunderstandings of the term. Scott provides data on economic decline, population decrease, and reduced intellectual output during this period. He acknowledges that the topic is complex and can be politicized, but ultimately concludes that the evidence supports the existence of a 'Dark Age' in Western Europe. Shorter summary

A collection of interesting links covering science, technology, culture, and economics, including updates on DNA malware, AI gaming, prison censorship, and various scientific studies. Longer summary

This is a link roundup post covering various interesting news and studies. Topics include DNA-encoded malware, AI in gaming, prison book bans, studies on therapy effectiveness, global inequality trends, and various scientific and cultural curiosities. The post follows Scott's typical link roundup format, providing brief commentary and context for each item, often with a mix of serious analysis and humorous observations. He covers both academic research and popular culture, maintaining his characteristic balance of intellectual rigor and accessibility. Shorter summary

A collection of interesting links covering topics from Mormon facial recognition to migraine treatments to housing policy, with Scott's analysis and commentary on each. Longer summary

This is a links post collecting various interesting stories and articles. It covers diverse topics including a study about Mormons being able to recognize each other, Silicon Valley housing issues, statistics about African immigrants, medical research about migraines and gum chewing, updates on anti-aging drugs, and various cultural and political stories. The post includes both lighthearted items (like puppy pregnancy syndrome in India) and serious policy discussions (like minimum wage debates), while maintaining Scott's characteristic mix of intellectual curiosity and careful analysis. Shorter summary