Sheena Iyengar, a Columbia Business School professor known for her work on the psychology of choice, and Mark Gardiner, a journalist and author with insider knowledge of Trader Joe's, explore how the grocery chain's innovative practices could reshape American governance. They discuss Trader Joe's unique model of limited product offerings and community engagement, revealing how its treasure hunt shopping experience enhances customer interaction. The conversation highlights psychology's role in consumer behavior and the potential lessons for broader business and social systems.