Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M2894

Tautology

Tautology
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Repeating the same meaning with different words (e.g., "free gift," "advance warning," "new innovation"). Gifts are inherently free, and warnings are inherently advance.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Defatting. These words are the fat of language. Remove the modifiers; the noun itself already contains that meaning.

anchor

Anchor fast decisions

Tautology is redundant rhetoric: the content expressed by the modifier is already implied by the modified word's connotation, so adding it does not increase information, only length. In logic, a tautology of the form "A and A" is always true but provides no new information; in writing, it manifests as "fat words." Its harm is diluting the key points, appearing unprofessional, and masking what is truly missing.

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Source support: Explicit

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