Cognitive Scaffold

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MENTAL MODEL · M6354

Reed's Law

Reed's Law
CollaborateHigh supportCommunication Studies
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

The value of group-forming networks grows exponentially with the number of users ($2^n$). Because it not only connects people to people, but also connects countless possible 'sub-groups'.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

The explosive power of communities. More radical than Metcalfe's law. As long as the platform allows users to spontaneously form groups (e.g., WeChat groups, Reddit), its value will far exceed simple point-to-point connections. Communities are the nuclear reactor of networks.

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Anchor fast decisions

Reed's law states that the value of a network grows exponentially (approximately 2^N) with the number of possible groups (subgroups) it can form, far exceeding the N² of Metcalfe's law.

MINIMUM ACTION

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Reed%27s_lawZH · Explicit
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