If I read a book I can pass on my memories of it, and someone with a more reliable memory might be able to recreate it. Admittedly, it would have a much larger

If I read a book I can pass on my memories of it, and someone with a more reliable memory might be able to recreate it. Admittedly, it would have a much larger rate of errors than copies recovered from cache, but there are plenty of things you can do with books that would have a similar rate of errors while still being violations of copyright.