You don’t need any rights to execute the feature. The user owns the book. The app lets the user feed the book into an LLM, as is absolutely their right, and asks questions.
1. The user doesn't own the book, the user has a revocable license to the book. Amazon has no qualms about taking away books that people have bought
2. I doubt the Kindle version of the LLM will run locally. Is Amazon repurposing the author-provided files, or will the users' device upload the text of the book?
You agree that we should own our digital content but it sounds like you don’t want this particular capability because… fuck Amazon.
I can totally understand that sentiment but I don’t think giving up end user capabilities to spite Amazon is logically aligned with wanting ownership of digital media.
> All these weird mental gymnastics to argue that users should have less rights
We probably agree more than not. But users getting more rights isn’t universally good. To finish an argument, one must consider the externalities involved.