Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M7960

Fall Short by One Basket

Fall Short by One Basket
BehaviormediumManagerial Psychology
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Updated 2026-08-10

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INTRODUCTION

English translation pending.

CORE DEFINITION

From the Book of Documents, describing a mountain nine fathoms high that is not counted as finished because one final basket of earth was never placed on it. The model holds that until delivery, a percentage of progress has no value, since the intended function is not available. The key qualification is the psychological mechanism: vigilance and investment typically fall as completion approaches, which is exactly when the last failures become fatal. Completion should be defined by acceptance rather than by progress measured internally.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Final-step naming: identify the specific closing tasks that stand between you and delivery. - Effort protection: increase attention and resources near the end instead of relaxing. - Definition change: define done as accepted and in use, not as a percentage complete.

anchor

Anchor fast decisions

Value is delivered only when the system functions as a whole, so partial completion yields none of the intended benefit while consuming all the accumulated cost. Motivation and monitoring, however, tend to decline as the work feels nearly done, which removes the attention that the final integration requires. The last phase is therefore both the most decisive and the least protected, which is why losses cluster there.

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.wikisource.orghttps://zh.wikisource.org/wiki/%E5%B0%9A%E6%9B%B8/%E6%97%85%E7%8D%92ZH · Explicit
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