If you think that moral reasoning is something we do to figure out the truth, you’ll be constantly frustrated by how foolish, biased, and illogical people become when they disagree with you.
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 lawyer and press secretaries, but they are no better than others at finding reasons on the other side. Perkins concluded that "people invest their IQ in buttressing their own case rather than in exploring the entire issue more fully and evenhandedly.".
Sports is to war as pornography is to sex.