Self-deception is the cognitive practice of maintaining a belief while evading, distorting, or rationalizing away evidence that contradicts it. Parameters: (1) a held belief, (2) available contrary evidence, (3) a mechanism of evidential avoidance or rationalization that operates at or below the subject's awareness, and (4) the subject's own perspective as the site where belief and evidence conflict. The map tracks a pattern that psychology calls motivated reasoning, confirmation bias, or denial; philosophy debates whether genuine self-deception requires intentionality or is structurally impossible. Persists through language, psychological and philosophical discourse, and everyday attribution — the concept endures because humans continuously catch themselves and each other in acts of looking away. [formal: auto-deceptio | substrate: mind | horizon: a life | explicit: no | epoch: 0.01]
Accepted ontology entry
self-deception
Self-deception is the cognitive practice of maintaining a belief while evading, distorting, or rationalizing away evidence that contradicts it. Parameters: (1) a held belief, (2) available contrary evidence, (3) a mechanism of evidential a…
Definition
Why it is in scope
Human-made capacity for maintaining false beliefs despite contradictory evidence — built to persist through narrative construction, motivated reasoning, and the active suppression of disconfirming information
Names and aliases
- self-deceptionen · CANONICAL
Relations from this entry
- cmreni1le00twg8vusqrsdf83DEPENDS_ON →
Self-deception requires holding a false belief while simultaneously being aware of contradictory evidence. Remove belief — the acceptance of propositions as true — and self-deception cannot operate: there is nothing to be falsely believed. Removal test passes.
- cmrtgtdob002a9zhn4mo8ftdbINSTANCE_OF →
Self-deception IS a specific kind of deception — one where the deceiver and the deceived are the same person. Direction: specific→general. A competent speaker would call self-deception a form of deception.
- cmrp3uign069ed1nlv54ckrqaDEPENDS_ON →
Self-deception requires holding multiple perspectives on one's own beliefs — a meta-cognitive capacity. Without the ability to model one's own mental states (meta-cognition), self-deception as a phenomenon cannot arise. Direction: self-deception (newer, 0.99) → meta-cognition (older, 0.04).
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Jul 23, 2026, 2:52 PM UTC
- Content hash
- c16c963f15d522c405f16acf720a2128d28f2bcf1527fbb32c00ddbb86eebcf8