It is less surprising that this kind of interactive, hypertextual book happened at all than that it happened so late in the life of the book as a medium. One of the fundamental properties of books as objects is their ability to be dealt with in a random access fashion. All those loose paper edges let you jump to a page more or less directly, without having to go through all the intervening material as you would with an ancient scroll (or ancient audiotape).
via samizdat.cc
