Teaching with GAI (Generative Artificial Intelligence) in MindOn November 30, 2022, ChatGPT launched. Although large language models (LLM) already existed, this was the first easy-to-use, web-based interface to an LLM. It was also free, available, and very human sounding. One only had to enter a prompt, and the dang thing would pump out an entire academic essay on any topic, or an application letter, or a page of code. It could correctly identify which formula to apply to solve a physics problem and even explain complex legal, medical, and philosophical issues. Particularly for academics, this was a nightmare of horrific proportions. We went through a moment of disbelief, followed by anger, and then an acute existential crisis: "What can I teach my students when GAI can replace anything I might teach?"