Explore the life and career of Ed Feigenbaum, 1994 ACM Turing Award recipient, in this comprehensive interview conducted by fellow Turing Award winner Don Knuth. Delve into Feigenbaum's early life, education, and initial interest in Artificial Intelligence. Discover his pivotal role in developing early expert systems and learn about his collaborations with influential researchers. Gain insights into the heuristics Feigenbaum applied in both his personal life and research programs, and understand the circumstances that led to his involvement in founding various firms. Examine his fascination with Japanese technological advancements and how it shaped his ongoing appreciation for their culture and work. This in-depth conversation, divided into four parts, offers a unique perspective on the evolution of AI and the experiences of one of its pioneering figures.