But here's the joke. Books have had this capability all along. Read Chomsky, Derrida, Pinker, Cummings. Look at early 16th century manuscripts. Hell, go open up the Talmud.
Books are remarkable constructions with enormous possibilities.
We may be using a 300 MHz G3 to finish the layout of my book, but to get from the first page to the last takes impossible seconds. Not a second but seconds. You can even access several pages at the same time. And you can carry this magical creation with you, write in it, and never need to hunt down conversion software to find out what you wrote and read years ago. But somehow the analogue powers of these wonderful bundles of paper have been forgotten.