Dunning-Kruger Effect and I, the impostor

Dunning-Kruger effect is an illusion of competence bias, presenting itself in two ways: one, the severely incompetent do not recognise their own incompetence, nor do they recognise competence in others, and assume they’re far better than they really are; two, the highly competent assume that others are at a similar level of competency and/or assume that the test, knowledge, etc. is easy to come by and that they’re nothing special. Frequently, the Dunning-Kruger for competent comes with a partner, the Impostor Syndrome.