MENTAL MODEL · M6335

Concorde Fallacy

Learn & MetacognitionHigh supportCognitive Science

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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

This is the biological version of the sunk cost fallacy (named after the Concorde aircraft project). A female animal that has already invested heavily in her offspring tends to continue investing even when prospects are bleak, because "if she doesn't, the previous investment will be wasted."

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Biological stubbornness. This shows that "cutting losses" is not only counterintuitive but even counter to biological instinct. To overcome it, one must employ higher-order cognition (metacognition): the past is dead, only the future matters.

anchor

Anchor fast decisions

Sunk costs should not influence future decisions, but organisms tend to continue investing because of resources already committed (to avoid "waste"), a stubborn tendency shaped by natural selection; overcoming it requires metacognition to separate "the past is dead" from "the future is promising."

MINIMUM ACTION

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Practice this model in one real situation:

① Identify costs that have already been incurred and cannot be recovered
② Independently evaluate the future benefits of continued investment
③ If future benefits are negative, decisively cut losses
④ Use rules/external perspectives to suppress instinct.

Check to track your progress (stored locally)

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Source support: Explicit

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en.wikipedia.orghttps://en.wikipedia.org/wiki/Sunk_costZH · Explicit
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