Bryan Johnson, a tech millionaire, has committed over six hours each day to reverse aging through a rigorous routine that includes cognitive enhancement, physical exercise, and a carefully curated diet. His Project Blueprint seeks to measure and optimize his biological age, employing various experimental methods, including infrared light therapy and specialized supplements. While Johnson claims impressive health metrics, some scientists express skepticism about the validity of his methods and the marketing of longevity clinics. Despite this, Johnson emphasizes the importance of lifestyle changes, such as lowering resting heart rates and avoiding stimulants, as key to promoting longevity. He also explores the intersection of artificial intelligence and immortality, suggesting that future advancements may redefine our understanding of life expectancy.