Five years ago, before the Covid-19 pandemic, I gave several talks about artificial intelligence. These talks were designed to be informational. They covered topics including: What is a cognitive system? How does a cognitive system work? What is an artificial neural network (ANN)? How does an ANN work? What is a natural language processor (NLP)? How does an NLP work? At the time, the technology was relatively young. Sure, IBM Watson had been around for more than half a decade. It had even won Jeopardy by then.