Krugman's Petulance Explained

A long New Yorker piece looks at Paul Krugman, and he clearly is one of those high functioning, socially obtuse nerds one meets all the time in quantitative fields. That is, he has some amount of Asperger's, which means he has trouble seeing things from other's perspectives. Thus, everyone who disagrees with him is 1) an idiot or 2) evil. He can't imagine it otherwise.