nostr:npub19mptcg4nywj8x2ew0g457r0y7d95pqh5y263ctgjf04wj2yhhahqfuzsye 
> So a book is a product but an ebook isn’t? How does that work?

Think about the fundamental differences between the two, eg;

* A book is produced. An e-book is copied

* A book is sold to you, with an irrevocable license to *that copy* of its contents, to do with as you please, including loaning or giving it to someone else.  An e-book is licensed to you, and if you try to loan it or give it away, you're a pirate:

https://blog.archive.org/2023/09/11/internet-archive-files-appeal-in-publishers-lawsuit-against-libraries/

https://www.gnu.org/philosophy/right-to-read.en.html

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