Herding
Also called: herd behaviour, crowd following, groupthink
Herding is following the crowd rather than your own analysis, and it can be individually rational even when it's collectively destructive: career risk means being wrong alongside everyone else is far safer than being wrong alone. It's the mechanism behind bubbles, bank runs and crowded trades, and it's why the most uncomfortable positions are frequently the best-compensated ones.
Where this is taught
Definitions are the trailer. These free levels turn Herding into something you play — one bite-size lesson, with worked examples, a quiz and XP.