Bloomberg Opinion columnist Barry Ritholtz speaks with behavioral economics expert Daniel Kahneman, who wrote the bestselling book "Thinking, Fast and Slow" and won the Nobel Prize in economics. Kahneman is a professor emeritus of psychology and public affairs at Princeton University and a fellow of the Center for Rationality at the Hebrew University of Jerusalem. His latest book, coauthored with Olivier Sibony and Cass Sunstein, is "Noise: A Flaw in Human Judgment."