The post examines the theory of treating schizophrenia's prodrome stage, exploring how early intervention might prevent full-blown schizophrenia and discussing the biological mechanisms behind the disease's progression.

The post reviews research on adult neurogenesis, initially presenting evidence for its existence and importance, then reveals a new study suggesting it doesn't occur in humans, examining the implications of this potential field-wide error.

A Links post presenting various news items and articles, ranging from cultural curiosities like the multiocular O to scientific findings about brain sex differences and genetic research, along with commentary on current events and politics.

Scott shares a diverse collection of links and brief commentaries on scientific studies, political news, cultural phenomena, and personal observations across various fields.

Scott Alexander examines evidence on marijuana legalization's effects on usage, health, and drug war costs, finding uncertainties too large for firm conclusions but suggesting traffic accidents may be the key factor.