Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M0366

Touch It Once / O.H.I.O

Touch It Once / O.H.I.O
Learn & MetacognitionmediumCognitive Science
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Only Handle It Once. For any piece of information or item, once your hand touches it, you must immediately decide its fate (execute, delegate, archive, or delete), and never put it back for 'later processing'. Scaffolding effect: eliminates backlog. When processing emails or chores, it is forbidden to 'take a look and put it down'. Either reply immediately or archive. Every 'pick up and put down' is a needless drain on cognitive energy.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Eliminates backlog. When processing emails or chores, it is forbidden to 'take a look and put it down'. Either reply immediately or archive. Every 'pick up and put down' is a needless drain on cognitive energy.

anchor

Anchor fast decisions

Each 'pick up and put down' consumes cognitive energy to reload context; immediate disposition (execute/delegate/archive/delete) completes the decision in one go, avoiding accumulation and attention loss caused by repeated touching.

MINIMUM ACTION

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Source support: Explicit

  • link
    au.lifehacker.comhttps://au.lifehacker.com/tech/21895/hack/use-the-ohio-method-to-manage-endless-tasks-and-messagesZH · Explicit
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