Book.

One of the most advanced inventions known to man.

It bends and yet it returns to it's original form.

It can be used without battery!

It can be processed and store information directly into the mind!

It can be used with no hands!

One can take notes on passages he finds interesting! (with another modern invention called "The pencil")

One can note the place he left it the night before and continue reading from where he left it!

One can see the contents of the book in the... "Contents" section and then, by using the great new invention of "page numbers", go directly to where he wishes!

Is the world ready for such a technology?