Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M5364

Multiple Realizability

Multiple Realizability
BehaviorHigh supportPsychology
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Updated 2026-08-04

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INTRODUCTION

English translation pending.

CORE DEFINITION

A thesis in philosophy of mind and functionalism: a higher-level property such as pain, memory, or computation can be realized by many different lower-level arrangements. Octopuses, humans, and in principle silicon systems might all realize the same functional state through entirely different mechanisms. The claim supports the view that what matters is the pattern of inputs, outputs, and internal relations rather than the material that carries it. Qualification: multiple realizability establishes that a function is not tied to one substrate; it does not show that every substrate can realize every function, nor that higher-level descriptions can always be reduced without loss.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Carrier neutrality: when solving a problem, do not insist on a particular carrier such as a person or a specific language. - Substitution test: check whether the same inputs and outputs can be produced by a different substrate. - Modular design: treat interchangeable carriers as the basis for reorganizing work and for automation.

anchor

Anchor fast decisions

A functional description specifies a role defined by inputs, outputs, and relations, and any arrangement that plays that role counts as an instance. Because many physical arrangements can satisfy the same specification, there is no one-to-one mapping between the higher level and the lower one. This is what allows damage in one region to be partly compensated by another and what makes substitution of carriers a coherent engineering option.

MINIMUM ACTION

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Source support: Explicit

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    zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E5%A4%9A%E9%87%8D%E5%AF%A6%E7%8F%BEZH · Explicit
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