there really isn't much more to say that hasn't already been said.

After three thousand years of explosion, by means of fragmentary and mechanical technologies, the Western world is imploding. Today, after more than a century of electronic technology, we have extended our central nervous system itself in a global embrace, abolishing both time and space as far as our planet is concerned. Rapidly, we approach the final phase of the extensions of man-the technological simulation of consciousness, when the creative process of knowing will be collectively and corporately extended to the whole of human society, much as we have already extended out senses and our nerves by the various media. (McLuhan, Understanding Media 3-4)