I've been reading a lot of (human-written) books lately, and one thing this has made abundantly clear to me is that AI writing just doesn't stack up. For one AI writing is often completely wrong about the details. But it also just tends to be bland and superficial. If you want a 5-minute summary of something, sure, it can do a passable job. But if I want something substantial and carefully thought out, I'll choose a book written by a human expert every time.

Maybe this will change at some point in the future, but for now there's no way I would substitute a well-written book on a subject for AI slop. These models are trained on human-written material anyway, why not just go straight to the source?