Frank Rossi interviews David Pierce, president of Stellar Golf Advisors and former USGA research director, about his groundbreaking research on golf course playability and golfer experience. Pierce shares his unique journey from chemical engineering at Dow Chemical to golf research, explaining how his engineering background translated perfectly to systematic golf research methodologies. The conversation centers on Pierce's development of a playability index system that categorizes golf courses from introductory to formidable based on obstacles rather than just distance, stripping out length considerations to focus on hazards, bunkers, and course forgiveness factors. Pierce reveals concerning data showing that roughly half of male golfers and three-quarters of female golfers regularly play courses too long for their skill level, despite knowing they're doing so. He discusses the psychology behind tee selection, the importance of appropriate challenge versus frustration, and how forced carries particularly impact golfer retention. The discussion covers practical applications for superintendents and PGA professionals, including hole location strategies, the benefits of firm playing conditions, and the critical relationship between course setup and golfer satisfaction. Pierce emphasizes that while golf gained a million net golfers during COVID, five million still left the game, highlighting the ongoing need to improve the golf experience to retain players long-term.