I attended a lecture where the point was made that AI is just a name for whatever is the frontier of technology. At one point, barcode scanners were apparently called AI because it was this amazing development that would allow computers to see and this would change how they operated and potentially even influence how they would one day think. Whereas today, we think of barcode scanners as dumb technology. But it was AI back then. The frontier keeps shifting forward and so correspondingly does what we consider to be AI.