There's definitely some open questions about how efficiently one should be allowed to 'multiplex' a piece of media between consumers, but I don't think anyone w

There's definitely some open questions about how efficiently one should be allowed to 'multiplex' a piece of media between consumers, but I don't think anyone will get away with splitting the logical unit they were given/sold into pieces. Just checking whether a digital book is open at all probably has over a 50X efficiency gain versus physical lending. If you let the lender split it up there's no clear place to stop and the limits are absurd. You could buy a movie, split it into frames and service 1000s of simultaneous viewings with small offsets from each-other.