That's interesting, I hadn't considered that a person might completely parrot a novel from an LLM and then claim it as their own..

I would almost give that a pass as long as we could prove that the person had sat down for 10s/100s of hours to type out the novel.

In that instance it would be almost the same as false authorship and stealing credit for other people's work. This has existed for centuries already.

As to being influenced by an LLM I think that is fine, even up to entire plot structure.. as with the above this could happen between people too.

By this point we can also discuss what is trully original and what if creative work is just "stealing" ideas that other people "created" before.

(I don't have an answer, just wondering.)

When people say AI isn't creating anything novel it's just predicting the next word I wonder whether my brain is just predicting the next word I should type here.