What's truly infuriating is how awful the tagging on Audible is. "The Lion, the Witch and the Wardrobe" is tagged sci-fi.

You would not believe how bad publisher data is. I run a book website, and Dune is often tagged nonfiction in the data we get from publishers. I don't think they know how to use the BISAC system the industry uses (https://bisg.org/page/BISACEdition). With Dune, they were marking it "AI," which is a nonfiction-only category.

Just one small example...

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Plus Dune, somewhat famously, doesn't have any AI in it.

The prequel books (if any such books exist), feature AI in order to showcase why the original does not.