Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M1985

Muller's Ratchet

Muller's Ratchet
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

In an asexually reproducing population, deleterious mutations accumulate unidirectionally like a ratchet, unable to be eliminated (because there is no genetic recombination to purge them), ultimately leading to population degeneration or even extinction.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

A warning about the accumulation of irreversible errors. It is used to understand 'technical debt' or 'management bad debts'. If a system (codebase, team culture) lacks a 'refactoring' or 'cleansing' mechanism (similar to genetic exchange in sexual reproduction), erroneous patches will pile up layer upon layer, never able to revert, until the system collapses. It reminds us to establish regular 'negative entropy' mechanisms.

anchor

Anchor fast decisions

In negotiation or commitment, public statements advance unidirectionally like a ratchet, making it difficult to backtrack, leveraging 'commitment consistency' to lock in the other party's position.

MINIMUM ACTION

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Source support: Explicit

  • link
    en.wikipedia.orghttps://en.wikipedia.org/wiki/Muller%27s_ratchetZH · Explicit
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