Scott Alexander examines recent studies on the Fraternal Birth Order Effect, finding evidence for a broader sibling birth order effect on homosexuality, though its exact nature and mechanism remain debated.

Scott Alexander discusses a genetic study that largely confirms historical American migration patterns described in 'Albion's Seed', noting both its confirmations and areas of confusion.

The post argues that 'non-shared environment' in twin studies is often misunderstood, encompassing more than just different experiences and potentially overestimating the impact of nurture on personality and life outcomes.

Scott shares and comments on various news articles and studies, covering topics from police tactics and Trump's campaign to behavioral genetics and dietary research.

A collection of interesting links from November 2014 covering science, technology, politics, and culture, with Scott's commentary and analysis on each.

Scott Alexander uses an analogy between race and culture to argue that mathematical clustering arguments don't determine whether race 'exists' any more than they determine whether culture 'exists'.

Scott Alexander shares a diverse collection of interesting links and brief commentaries on topics ranging from pollution solutions to genetic discoveries and cultural differences.