MENTAL MODEL · M5300

Identity of Indiscernibles

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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

If two objects possess exactly the same properties (qualities, location, etc.), then they are the same object. Conversely, if they are different objects, they must differ in some property.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

The absoluteness of difference. In market competition, if you claim to be "as good as the competitor, but cheaper," you are effectively saying you are the same thing (in the eyes of consumers). To survive, you must create a discernible difference; otherwise, by Leibniz's law, you will be seen as redundant and eliminated.

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Anchor fast decisions

Leibniz's law: identical entities must have exactly the same properties; if two entities can be distinguished by any property, they must be distinct entities. Application reminder: In competition, "being the same as the competitor but cheaper" does not constitute independent existence—consumers will equate them and choose one, leaving the other as redundant. True survival requires creating a discernible difference so that you cannot be merged.

MINIMUM ACTION

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Practice this model in one real situation:

List properties: clearly enumerate your own and competitors' property sets.
Find difference: identify at least one discernible, valuable point of difference.
Create difference: turn the difference into a user-perceivable advantage.
Prevent equivalence: avoid the "homogeneous + price cut" merging trap.
Verify independence: can users clearly distinguish "you vs. him"?

Check to track your progress (stored locally)

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Source support: Explicit

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