If I were using this for real I’d ask it to iterate, to create a story arc, etc.
I'd be curious if it could explain those concepts and use them in consistent ways. If so, I'd be curious how novel it could really get. Is it just going to be repackaging well-trod scifi and fantasy devices, or studied philosophy? Or could it offer us a story with truly new understandings? For example, to my knowledge, House of Leaves is something truly novel. It's probably not the first book with intentional printing errors, or with layered narration, or with place-horror, etc. But I think House of Leaves is pretty widely considered a sort of "step forward" for literature, having a profound impact on the reader unlike anything that came before it.
(A really serious discussion will require analyzing exactly what that impact is and how it's novel.)