If we can transmit information through space instantaneously, our physical location becomes almost meaningless.

Who cares where your brain is if you can send and receive data somewhere 2000 lightyears in the same time it would take to send and receive data from somewhere 40cm away?

Sadly, even the theory behind such a concept is still in its infancy - and of course it may eventually be proven to be absolutely impossible with the same great certainty with which we've defined the mass of an electron.