Obozo, Diagnosed

Interesting.  Seems that the psychologists knew all about Obozo for quite some time.

The Dunning–Kruger effect is a cognitive bias in which unskilled individuals suffer from illusory superiority, mistakenly rating their ability much higher than is accurate. This bias is attributed to a metacognitive inability of the unskilled to recognize their ineptitude...

As we know, it's a helluvalot worse when the individual is also a narcissist extraordinaire.