MENTAL MODEL · M7550

Speak Recklessly

TechnicalHigh supportEngineering

Included

Updated 2026-08-10

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INTRODUCTION

English translation pending.

CORE DEFINITION

Ancient Chinese writers used yellow paper and erased errors by coating them with orpiment, a yellow mineral; the Jin dynasty scholar Wang Yan changed his words so freely that people mocked him for having orpiment in his mouth. As a mental model it names casually changed words and requirements that shift without a fixed record, which is the root of engineering rework, contract disputes, and broken collaboration.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Freeze the commitment: write every important promise, requirement, and decision into a versioned record - Gate every change: route revisions through review with a trace instead of oral edits - Flag the rewriters: require written confirmation from partners who keep changing their story

anchor

Anchor fast decisions

An unrecorded commitment never becomes a shared fact: each retelling mutates it, and every silent revision shifts the downstream work without shifting the shared understanding, so rework accumulates invisibly. Written versioning freezes the commitment at one point, turning any later change into an explicit and reviewable event instead of invisible drift.

MINIMUM ACTION

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Practice this model in one real situation:

Fix every important promise, requirement, and decision into versioned documentation 2. Require that any change pass through review and leave a written trace 3. Demand written confirmation from collaborators who frequently reverse themselves 4. Review the rework caused by casual changes and make its cost visible

Check to track your progress (stored locally)

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Source support: Explicit

link
zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E7%8E%8B%E8%A1%8D_(%E8%A5%BF%E6%99%8BZH · Explicit
verified

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