Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M5353

Rear-view Mirrorism

Rear-view Mirrorism
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Updated 2026-08-08

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INTRODUCTION

English translation pending.

CORE DEFINITION

McLuhan's image of driving forward while watching the rear-view mirror describes how new media are first filled with the content of their predecessors: early film simply recorded stage plays, early radio read newspapers aloud, and the early web reproduced print pages. The pattern also names the retrospective fallacy of reading history backwards from today's outcome, treating what happened as inevitable and ignoring the branches that were never taken. Both senses warn that the vocabulary inherited from the old form hides what the new one can uniquely do. Qualification: imitation is a normal stage of adoption, so the error lies in stopping there, not in beginning there.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Old-lens check: ask which predecessor's assumptions you are importing when you describe a new tool. - Native affordance: look for interactions the new medium makes possible and the old one could not support. - Retrospective caution: when explaining how something happened, keep the roads not taken in the account.

anchor

Anchor fast decisions

A new medium arrives without an established vocabulary, so users describe and deploy it with the concepts they already have. That inheritance makes early applications copies of the previous form and conceals capabilities that have no analogue in it. The same backward gaze operates on history, where knowing the outcome makes the path look necessary and hides the alternatives that were live at the time.

MINIMUM ACTION

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Marshall_McLuhanZH · Explicit
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