These two tweets from @dgardner illustrate the Dunning-Kruger effect nicely
Dan Gardner Blowhard on radio, who has all the economic answers, reads an email that includes “Keynesian.” Blowhard pronounces it “Kuh-nayz-ian.”
http://twitter.com/#!/dgardner/status/118337772946857984
Dan Gardner I believe that is a demonstration that one must know something to know one is ignorant.