A Links post presenting various interesting news and studies from different fields, with brief commentary on each item. Longer summary

This is a Links post that presents a collection of interesting news, studies, and articles from various fields. The post covers topics ranging from scientific research and academic policy to economics and social issues. It includes studies on ADHD diagnosis, income inequality, neighborhood effects, and discussion of various cultural and political events. The tone is casual and informative, with Scott providing brief commentary and connecting different ideas throughout. Shorter summary