Scott Alexander

Slate Star Codex / Astral Codex Ten; rationalist synthesis.

Scott Alexander is a practising psychiatrist and the author of Astral Codex Ten (formerly Slate Star Codex), one of the most-read long-form blogs in the rationalist tradition. His essays apply Bayesian reasoning, psychiatric research, and careful steelmanning to topics ranging from policy to human cognition. He is particularly noted for making probabilistic thinking and epistemic humility accessible to a broad audience.