MENTAL MODEL · M8352

Diegesis

CreateHigh supportDesign Thinking

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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Refers to the fictional world constructed within a story. A diegetic sound is one that characters in the story can hear (e.g., a radio broadcast), while a non-diegetic sound is one that only the audience can hear (e.g., background music).

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Distinguish layers of experience. In product design, distinguish which elements are part of the user's experience (diegetic, such as in-game UI) and which are external interactions or aids. Immersion is key to Diegesis.

anchor

Anchor fast decisions

Diegesis is the internally consistent fictional universe of a story, whose rules, history, and sounds 'belong' to that world. A narrative sound is 'diegetic' if characters can perceive it, otherwise it is 'non-diegetic'. Immersion relies on keeping the experience as much as possible within the diegesis.

MINIMUM ACTION

In progress 0/5

Practice this model in one real situation:

Define the boundaries and rules of the story world
Label sounds or elements as diegetic or non-diegetic
Internalize the experience as much as possible
Keep an external layer only where necessary (safety/system)
Validate immersion level.

Check to track your progress (stored locally)

Learning progress0%

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Source support: Explicit

link
en.wikipedia.orghttps://en.wikipedia.org/wiki/DiegesisZH · Explicit
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