Scott Alexander reviews the evidence for declining sperm counts, discussing major studies, criticisms, and potential causes, while remaining uncertain about the true extent and reasons for any decline.

Scott Alexander cautions against basing opinions on limited research, using examples from medicine and economics to show how cherry-picking studies can lead to opposing conclusions.

Scott shares a collection of interesting links covering various topics from American chestnut restoration to scientific findings, political events, and cultural observations.

Scott Alexander examines political tribalism in America, arguing that people often claim tolerance while harboring strong prejudices against their outgroups.

Scott Alexander critiques social justice terminology, arguing that words like 'privilege' and 'racism' are used as weapons rather than tools for understanding.