In order to become a better decision-maker, it's imperative to actively explore all four of the ways that decision quality and outcome quality relate… - Annie Duke

As Nietzsche points out, regret can do nothing to change what has already happened. We just wallow in remorse about something over which we no longer have any control. But if regret happened before a decision instead of after, the experience of regret might get us to change a choice likely to result in a bad outcome.

If you want to pick a role model for designing a group's practical rules of engagement, you can't do better than Merton. To start, he coined the phrase "role model," along with "self-fulfilling prophecy," "reference group," "unintended consequences," and "focus group." He founded the science of sociology and was the first sociologist awarded the National Medal of Science.

When we work toward belief calibration, we become less judgmental of ourselves.