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