I guess you could devise a blockchain like scheme where used ebook licenses could be bought and sold just like regular books, and the original publisher wouldn’t be able to do any thing about it.
Of course, most of my real books are worth peanuts on the open market, and the few exceptions are “out of print”, a quaint relic of the days when physical print runs cost real money to set up.
I squeed at a physical book recently, and was really disappointed to learn that it sells for 350 dollars a copy, far in excess of its original list price of $39.
