Cognitive Scaffold

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MENTAL MODEL · M2117

Lake Wobegon Effect

Lake Wobegon Effect
BehaviorHigh supportSocial Psychology
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Refers to the phenomenon where the vast majority of people believe they are above average in certain abilities (such as driving skills, sense of humor, moral level). Statistically, it is impossible for 90% of people to be 'above average'. - Scaffolding role: self-immunity of mediocrity. - Different from the 'Dunning-Kruger effect' (where incompetent people are overconfident), this is a widespread collective narcissism. It explains why in performance evaluations, the hardest part is getting those who receive a C to admit they are a C. If you feel that everyone around you is 'a bit stupid', it is likely that you have fallen into the Lake Wobegon effect. The way to stay clear-headed is to assume you are average and then look for evidence that you are not.

SCAFFOLDING EFFECT

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Self-immunity of mediocrity. - Different from the 'Dunning-Kruger effect' (where incompetent people are overconfident), this is a widespread collective narcissism. It explains why in performance evaluations, the hardest part is getting those who receive a C to admit they are a C. If you feel that everyone around you is 'a bit stupid', it is likely that you have fallen into the Lake Wobegon effect. The way to stay clear-headed is to assume you are average and then look for evidence that you are not.

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People tend to place themselves at the upper end of the positive distribution (above average), stemming from self-serving bias and availability (one's own strengths are more visible). At the group level, forming the statistical impossibility of 'everyone above average' is a universal narcissistic self-positioning.

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Source support: Explicit

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