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The Dunning–Kruger effect is a cognitive bias in which unskilled people make poor decisions and reach erroneous conclusions, but their incompetence denies them the metacognitive ability to appreciate their mistakes. The unskilled therefore suffer from illusory superiority, rating their ability as above average, much higher than it actually is, while the highly skilled underrate their own abilities, suffering from illusory inferiority. This leads to the situation in which less competent people rate their own ability higher than more competent people.

Bertrand Russell formulerar en variant av effekten; Sokrates för ett liknande resonemang. Ja, detta är i sanning ett stort samhällsproblem vars lösning jag inte ser framför mig.

Tips: Bengt Kriström.