Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M0130

Colorless Green Ideas Sleep Furiously

Colorless Green Ideas Sleep Furiously
StructureHigh supportLogic
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

A sentence coined by Chomsky that is grammatically correct but semantically meaningless.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Distinguishes form from content. It is a powerful reminder that structural correctness does not equal meaningfulness. Much corporate jargon, academic nonsense, or logically coherent grand narratives may be 'colorless green ideas'—perfect in form but empty in content.

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Anchor fast decisions

Chomsky's famous sentence 'Colorless green ideas sleep furiously' is syntactically valid but semantically nonsensical, demonstrating that grammatical structure and meaning can be separated, and refuting the view that language can be explained solely by semantics.

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Source support: Explicit

  • link
    en.wikipedia.orghttps://en.wikipedia.org/wiki/Colorless_green_ideas_sleep_furiouslyZH · Explicit
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