MENTAL MODEL · M3876

The Sorites Paradox

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Updated 2026-08-05

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INTRODUCTION

English translation pending.

CORE DEFINITION

The sorites, or heap paradox, attributed to Eubulides of Miletus, shows that a series of changes too small to matter individually can flip a category when accumulated. Vague terms such as heap, bald, and rich have no precise threshold, so each single step preserves the classification while the endpoint does not. The paradox concerns predicates with borderline cases, not all change.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Hard boundary: Replace soft thresholds like 'when I feel overweight' with fixed numbers. - Drift watch: Track cumulative change rather than asking whether one more step matters. - Trigger rule: Convert a judgment call into a preset condition that fires automatically.

anchor

Anchor fast decisions

Each small increment leaves the category unchanged, so no single step ever looks like the moment of transition. Because the boundary is genuinely vague, asking whether one more unit matters always returns no, and the accumulated result arrives without any identifiable decision point. A fixed threshold supplies the decision point that the category itself lacks.

MINIMUM ACTION

In progress 0/1

Practice this model in one real situation:

Pick a domain where you have been judging by feel, such as weight, spending, or sleep. 2. Choose a fixed threshold and write it down. 3. Define the action that fires when the threshold is crossed. 4. Track the underlying number rather than your impression of it. 5. Execute the action without re-litigating the threshold.

Check to track your progress (stored locally)

Learning progress0%

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Source support: Explicit

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