The only thing that would make electronic book-reading, for me, replacement for paper books is guaranteed, 100% future-proof integration.. like, I need a book-r

The only thing that would make electronic book-reading, for me, replacement for paper books is guaranteed, 100% future-proof integration.. like, I need a book-reader that will last 50 years at least, have the ability to store books and retrieve them (i.e. zero lock-in), be solar-powered, and most important of all, an actual feature of books nevertheless unmatched by computers, user-maintainable at the hardware layer. I think we have a way to go, but I'm sure there are devices out there that will last 50 years or so, as a place to put all the books I've loved... Until then, I maintain a fleet of computers of course, however under the known circumstance that when the lights go out, there'll be not much to read.