Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M7183

Dig a Well When Thirsty

Dig a Well When Thirsty
DecidemediumDecision Science
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Updated 2026-08-10

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INTRODUCTION

English translation pending.

CORE DEFINITION

A proverb describing the futility of digging a well only once thirst has struck. Its core proposition is that critical resources such as cash, channels, relationships, and contingency plans have a lead time, so they must be built while the need is still distant, and a response that begins when the demand has already erupted exposes the greatest risk at the moment of greatest vulnerability. The qualifier is that the failure lies in the timing of the investment rather than in the resource itself.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Well inventory: name the critical wells such as cash, channels, relationships, and backups. - Advance building: construct each of those resources while the need is still distant. - Early trigger: set a warning line that starts the work before the crisis point.

anchor

Anchor fast decisions

Resources such as cash, relationships, and capability take time to build, so the moment of need is the worst possible moment to start. When the demand arrives first, the search happens under maximum pressure with minimum leverage, which is why the outcome is not merely delayed but often unavailable at any acceptable price.

MINIMUM ACTION

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Practice this model in one real situation:

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Source support: Explicit

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    zdic.nethttps://zdic.net/hans/%E4%B8%B4%E6%B8%B4%E6%8E%98%E4%BA%95ZH · Explicit
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