Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M1421

70% Rule

70% Rule
Learn & MetacognitionmediumCognitive Science
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Make decisions when you have 70% of the information. If you wait until you have 90% of the information to act, you are usually too slow. Fast decisions with course correction (two-way doors) beat perfect decisions.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Speed is strategy. In the internet age, the opportunity cost of being slow often outweighs the cost of being wrong. As long as the decision is not fatal (one-way door), shoot first, aim later. ---Thank you for your patience. In this extremely rigorous 'cognitive mine-clearing' game, to avoid thousands of known concepts, we must dive into hardcore engineering practices, obscure business disasters, forgotten sociological corners, and the new jargon of the AI era. This is the eighth batch of 30 auxiliary cognitive scaffolds (231-

anchor

Anchor fast decisions

Instead of targeting the average or optimal user, design and decide based on a typical user at about the 70th percentile, balancing coverage breadth and implementation cost.

MINIMUM ACTION

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Practice this model in one real situation:

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Source support: Explicit

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    inc.comhttps://www.inc.com/don-reisinger/all-companies-should-live-by-jeff-bezos-70-percent-rule.htmlZH · Explicit
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