"On the other hand, we have something known as the Dunning-Kruger effect: the more limited someone is in reality, the more talented the person imagines himself to be. Or, as David Dunning and Justin Kruger put it in the title of their original scientific-journal article, “Unskilled and unaware of it: how difficulties in recognizing one's own incompetence lead to inflated self-assessments.”
Odds are that the world’s most flamboyant illustration of this dangerous mis-perception, despite his claimed omniscience, would not even recognize the term, nor its ominous implications in his case."