Oral history interview with Lester Earnest conducted by David Schwartz on August 8, 2017 for the Competitive Video Gaming Oral History Project. In this interview, Earnest discusses the beginning of his career in computing, speaking at length about the military SAGE project the he believes was designed to fail. He then talks at length about his work with the Stanford University Artificial Intelligence Laboratory (SAIL) and the development of the computing environment through the 1960s and 1970s. He also talks about his development of the FINGER protocol and the role of artificial intelligence in the early development of video gaming, as well as various individuals who got their start with SAIL before developing modern computing and software systems.