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.
And we live in a Lake Wobegon of the mind, where "all the women are strong, all the men are good looking, and all the children are above average."
