Yeah, that’s pretty much what I was thinking of.

Let’s say your borrow a bunch of books from the local library and read them in order to refine your writing skills. Later, you’ll write a book that is more or less inspired by all of the books you’ve previously read. Do you owe something to the hundreds of authors you got inspired by? Even if you bought those books, do you think the other authors would could still demand something extra because clearly those books weren’t really used for mere entertainment. Instead, they were used to train a new writer.

If it hasn’t happened already, I’m pretty sure there’s going to be a lawsuit about this sort of thing. Then the judge would need to figure out if there’s a difference between a human reading a book for entertainment and training to become a writer.