Dunning Kruger effect explained confidence vs competence #psychology #dunningkruger #science

Ajouté : 2026-06-01

[00:00:00]You think your incompetent boss is just arrogant. You are entirely wrong about that.

[00:00:05]It is a measurable cognitive glitch mapped mathematically in 1999 by dedicated researchers.

[00:00:13]>> [music] >> The Dunning-Kruger effect. Two Cornell psychologists proved the exact math of human delusion forever.

[00:00:22]They tested 65 undergraduate students on logical reasoning, humor, and complex English grammar rules.

[00:00:30]>> [music] >> The students who objectively scored in the absolute bottom 12% of the class confidently rated their own overall performance up [music] in the 62nd percentile without any hesitation.

[00:00:44]Why?

[00:00:46]Because incompetence destroys the exact mental framework needed to recognize incompetence [music] in yourself.

[00:00:54]If you lack a critical skill, you literally cannot see that you lack it.

[00:01:00]Fast forward to a 2018 Korn Ferry study of modern corporate executives.

[00:01:06]>> [music] >> 7,000 corporate leaders were rigorously evaluated on their objective leadership [music] and their self-awareness.

[00:01:15]95% of these leaders confidently rated themselves firmly above the average performance line. [music] But the strict objective behavioral metrics qualified only 10 to 15% of them.

[00:01:29]The delusion gap is mathematically [music] identical to the 1999 Cornell University student sample.

[00:01:37]Society will tell you that confidence equals confidence.

[00:01:42]>> [music] >> They are completely and utterly wrong.

[00:01:46]Confidence is actually highest at the absolute bottom of any given skill distribution curve.

[00:01:53]I have watched this exact pattern repeat for 47 years.

[00:01:58]>> [music] >> Are you truly certain?