Gregory Todd Williams

Among the Inept, Researchers Discover, Ignorance Is Bliss:

People who do things badly, Dr. Dunning has found in studies conducted with a graduate student, Justin Kruger, are usually supremely confident of their abilities — more confident, in fact, than people who do things well.

One reason that the ignorant also tend to be the blissfully self-assured, the researchers believe, is that the skills required for competence often are the same skills necessary to recognize competence.

It’s scary how many people I know that match this description.