What does it mean when a computer can make better medical decisions than a human? The progress in large language models, and in particular the popularity of ChatGPT, has brought these questions to the forefront in 2023, but we've been discussing this for over 50 years. In this episode, Dr. Shani Herzig and I are going all the way back to the early 1970s with the invention of AAPHELP, the first real clinical decision support system, and the first time doctors had to contemplate working with – or competing against – computer systems.