The Rule of 3
Updated 2026-08-10
INTRODUCTION
English translation pending.
CORE DEFINITION
The Rule of 3 sets a hard ceiling of three most important tasks for each planning period, whether a day, a week, or a year, and defers everything else. Its core proposition is that a small fixed limit forces genuine trade-offs, whereas an open list lets priority quietly flatten until nothing is prioritized. The key qualifier is that the number is a discipline rather than a magic constant, since the point is the forced choice, not the digit itself.
SCAFFOLDING EFFECT
Reduce cognitive load
- Hard ceiling: allow only three most important tasks in any single given planning period. - Deferral list: move everything else onto a secondary list that does not compete for attention. - Attack order: start the period by working on those three before doing anything else.
Anchor fast decisions
An unbounded list allows everything to remain nominally important, so attention spreads and nothing gets finished. A hard limit makes the ranking decision explicit and unavoidable, and finishing three things creates visible progress that reinforces the constraint. The value comes from the forced choice, not from the number three.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Rule_of_threeverified
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