The Importance of Regret

Dan O'Brien: In your book, you differentiate regret from some of these other negative emotions. He says the big demarcation between regret and disappointment is agency. Regret doesn't exist in absolute terms; it's about comparing one set of circumstances to another imagined set of facts," he says. "Who needs celebrity sightings, Dan, when you've got the human brain? That's what I say"