Game Theory, the Prisoner's Dilemma, and Cooperation

Veritasium · Explainer · YouTube title: Once you understand game theory, you understand the world.

Why it's here

HN commenters reach for it constantly as an approachable explanation of why cooperation and reciprocity are rational strategies.

What it covers

Veritasium explores the Prisoner's Dilemma and Axelrod's tournaments, showing why tit-for-tat and forgiving strategies win in repeated games. It extends the ideas to cooperation in evolution and conflict.