Research in psychology has revealed that our decisions are disrupted by an array of biases and irrationalities: We’re overconfident. We seek out information that supports us and downplay information that doesn’t. We get distracted by short-term emotions. When it comes to making choices, it seems, our brains are flawed instruments. Unfortunately, merely being aware of these shortcomings doesn’t fix the problem, any more than knowing that we are nearsighted helps us to see. The real question is: How can we do better?