Cognitive Scaffold

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MENTAL MODEL · M13070

Too Hard Pile

Too Hard Pile
SystemsHigh supportInvestment Finance
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Updated 2026-08-11

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INTRODUCTION

English translation pending.

CORE DEFINITION

The too hard pile is a decision rule attributed to Charlie Munger, who described a tray of problems marked too hard and treated declining to decide as a legitimate outcome. The rule rests on the observation that judgment degrades sharply outside one's circle of competence, and that more analysis does not reduce uncertainty to a decidable level on questions that are fundamentally beyond you. Passing such questions over preserves scarce analytical attention and removes the pressure to act simply because a question was raised.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Competence screen: first ask whether you can explain how the thing makes money at all - Fast discard: if you cannot, file it and stop analyzing instead of sinking more time - Re-entry condition: name the observable change that would let you retrieve the question later

anchor

Anchor fast decisions

Analytical capacity is limited and performance differs sharply inside and outside a person's competence. On a question beyond that boundary, additional effort does not lower uncertainty enough to justify a decision, while sunk cost and overconfidence make the eventual judgment worse. Explicitly filing the question away redirects scarce attention to problems that can be resolved and makes not deciding a permitted answer, which removes the default pressure to act.

MINIMUM ACTION

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Source support: Explicit

  • link
    mungermodels.comhttps://mungermodels.com/models/too-hard-pileZH · Explicit
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