Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M12166

Touchstone / Litmus Test

Touchstone / Litmus Test
CreateHigh supportDesign Thinking
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

A standard test used to verify authenticity or quality—a key question or situation that quickly reveals the essence. Scaffolding role: design a critical test. Find a simple but discriminating test to quickly judge quality or authenticity. (Merged: Touchstone, Touchstone Association)

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Design a critical test. Find a simple but discriminating test to quickly judge quality or authenticity. (Merged: Touchstone, Touchstone Association)

anchor

Anchor fast decisions

A touchstone is a highly discriminating key test—using a single question or situation to quickly reveal the essence of an object (authenticity, quality, stance). It compresses complex evaluation into an actionable 'probe', reducing the cost of judgment.

MINIMUM ACTION

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Practice this model in one real situation:

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Source support: Explicit

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    zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E8%AF%95%E9%87%91%E7%9F%B3ZH · Explicit
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