Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M12943

Chicken Ribs

Chicken Ribs
Learn & MetacognitionHigh supportCognitive Science
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Updated 2026-08-22

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INTRODUCTION

English translation pending.

CORE DEFINITION

The phrase comes from the Three Kingdoms period. Cao Cao used chicken ribs as the nightly password, and Yang Xiu immediately understood the army would withdraw: chicken ribs have no meat when eaten but enough savor that discarding them feels wasteful. The scaffold is sunk cost and decision paralysis: when a project, feature, or employee becomes a chicken rib, the rational move is to discard it at once. The cognitive bandwidth and maintenance cost it consumes far outweigh its actual value.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Revalue the item: weigh the attention it drains against the value it still returns. - Name the trap: recognize reluctance that is driven by the flavor rather than the meat. - Book the loss: discard the marginal thing and record the loss honestly.

anchor

Anchor fast decisions

The hold is not the object's value but the asymmetry of how losses feel. The faint residual benefit keeps the item inside the frame of use, while its maintenance cost is diffuse and therefore undercounted. Yang Xiu's insight is to price the whole thing: the flavor is real but the meat is gone, so keeping the rib is a steady payment for nothing.

MINIMUM ACTION

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Source support: Explicit

  • link
    zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E4%B8%89%E5%9B%BD%E5%BF%97ZH · Explicit
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