There is a very big difference between lending a paper book and sharing an electronic copy and conflating the two damages the debate. Please stop making the analogy.
Lending a paper book meant you couldn't read the book until you retrieved it from the other party. Sharing an electronic copy has no such restriction.
Pretending that the rights you had with a paper book should be the same as the rights you have with electronic copy is silly because the only similarity is the content and nothing else. The real debate is what should your rights with regard to the content actually be? And how do you protect those rights when the content goes digital?
Lending a paper book meant you couldn't read the book until you retrieved it from the other party. Sharing an electronic copy has no such restriction.
Pretending that the rights you had with a paper book should be the same as the rights you have with electronic copy is silly because the only similarity is the content and nothing else. The real debate is what should your rights with regard to the content actually be? And how do you protect those rights when the content goes digital?