Talking to Strangers: What We Should Know About the People We Don’t Know

by Malcolm Gladwell

This is the explanation for the second of the puzzles, in Chapter Two, about why computers do a much better job than judges at making bail decisions. The computer can’t see the defendant. Judges can, and it seems logical that that extra bit of information ought to make them better decision-makers. Solomon, the New York State judge, could search the face of the person standing in front of him for evidence of mental illness—a glassy-eyed look, a troubled affect, aversion of the eyes. The defendant stands no farther than ten feet in front of him and Solomon has the chance to get a sense of the person he is evaluating. But all that extra information isn’t actually useful. Surprised people don’t necessarily look surprised. People who have emotional problems don’t always look like they have emotional problems.