Schools don’t teach people to reason thoroughly; they select the applicants with higher IQs, and people with higher IQs are able to generate more reasons. The findings get more disturbing. Perkins found that IQ was by far the biggest predictor of how well people argued, but it predicted only the number of my-side arguments. Smart people make really good lawyers and press secretaries, but they are no better than others at finding reasons on the other side.
