Lemming Effect
Updated 2026-08-02
INTRODUCTION
English translation pending.
CORE DEFINITION
The lemming effect takes its name from a popular myth that lemmings commit mass suicide by leaping off cliffs, a claim later traced to staged footage in a Disney wildlife film. The metaphor persists because it captures a real pattern: under uncertainty, people copy the behavior of those around them rather than evaluate the evidence themselves. The effect is strongest when individuals assume the crowd must know something they do not. Key qualification: it describes a social tendency, not a biological drive, and independent actors can and do break away from the herd.
SCAFFOLDING EFFECT
Reduce cognitive load
- Screen consensus: when everyone is buying the same asset or chasing one trend, treat the crowd as a warning signal. - Check your evidence: ask whether your reasoning would survive if the crowd reversed position tomorrow. - Value dissent: protect whoever leaves the queue, since exit is cheapest before the cliff.
Anchor fast decisions
Under uncertainty, imitating others is a cheap shortcut: if many people chose the same action, each individual infers it must be informed. That inference is usually rational but becomes self-reinforcing, because each new follower adds apparent evidence for the next. Private doubts stay unshared, so the herd can keep accelerating toward a cliff that no member actually endorses.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
account_treeGenealogyexpand_more
menu_bookReferencesexpand_more
Source support: Explicit
- zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E6%97%85%E9%BC%A0verified
PRIVATE NOTES · Only visible to you
SAVED Q&A
ENTRY Q&A · Private saving available
Ask with a clear boundary
thinkingmodels answers from published entry context only.
Your question is sent to thinkingmodels. The answer uses public entry context only.
RELATED MODELS