I would be very scared of an unintelligent pretender.
> AI
"AI" is a different thing ;) No need to be skeptical, no more than of sorting. "AI" just means "a solver". "Computer" was a profession before the automation.
(In fact, one could argue that chatGPT does not exactly look like AI, because in a way it does not look like a solver. It may seem to diverge, not to approximate.)
> how useful ... used it to learn a bunch about
What did you do, you asked it to summarize pages?