Researchers have confronted us in recent years with example after example of how we humans get things wrong when it comes to making decisions. We misunderstand probability, we’re myopic, we pay attention to the wrong things, and we just generally mess up. This popular triumph of the “heuristics and biases” literature pioneered by psychologists Daniel Kahneman and Amos Tversky has made us aware of flaws that economics long glossed over, and led to interesting innovations in retirement planning and government policy.