This. Explains. EVERYTHING.

A growing body of psychology research shows that incompetence deprives people of the ability to recognize their own incompetence. To put it bluntly, dumb people are too dumb to know it. Similarly, unfunny people don't have a good enough sense of humor to tell.

This disconnect may be responsible for many of society's problems.

With more than a decade's worth of research, David Dunning, a psychologist at Cornell University, has demonstrated that humans find it "intrinsically difficult to get a sense of what we don't know." Whether an individual lacks competence in logical reasoning, emotional intelligence, humor or even chess abilities, the person still tends to rate his or her skills in that area as being above average.