In an old movie with Spencer Tracy and Katherine Hepburn called the Desk Set, Hepburn plays a 1940ish Reference Librarian. Namely some one in the company asked a question and she and her team came up with the answer. Segue to 1970s at MIT. We had Reference Librarians. They were well educated and specialists. Thus if I had a question about some progress in the nascent field on DNA, just about twenty years old by then, I would meet the Reference Librarian and we would have an interrogatory and some brief time later, days usually, I would be gotten back by them and would have my answers and a details list of reference back up.
My interactions were in a dialog form and my backup was both a list of references and hard copies of the most important ones. No computers, good interrogatories and detailed results.
The Librarian did not generate anything new, just collected and summarized the data available.
So what is AI? A computerized Reference Librarian who consumes massive amount of electricity for which the consumer is bearing the costs. My old Reference Librarian consumer de minimis electricity. Also she was quite pleasant and thorough.
So what is AI?