My daughter, who has had a degree in computer science for 25 years, posted this observation about ChatGPT on Facebook. It's the best description I've seen:

@DrewKadel Does that image have alt text? I don't see the usual tooltip that I expect to pop up over an image...

Anyway, I like the response. I also think it's worth keeping in mind that (many) people are hoping this line of machine learning research is going to lead to a system that *does* give real answers, or at least is good enough at completion that its responses are indistinguishable from real answers. So there's always going to be a drive to test how well the models are doing and to push them toward giving more realistic and reliable responses, regardless of the fact that they're not actually designed to do that.

@diazona Alt text added this morning
@DrewKadel Thanks! I can confirm I see the tooltip now.