"I remember interviewing a, and i may be pronouncing your name incorrectly, tally sharet or shroshe, about optimism bias. And she had sort of laid the groundwork for the idea of thedfferene between retrospection and prospection," he says. "You blend these two things together, and that's what's happening in a moment of regret." He adds: "That completely reframs it. For me, i think that is the coolest thing in the whole book"