[TeMPOraL]

> Do you seriously believe that we can (or should) reach a point where nobody can be identified or located?

People believing such a thing probably don't understand the fundamental nature of reality. Everything forms a web of causality; all your actions spread outwards at the speed of light, affecting everything else around you. Quite often one can correlate back those effects to their original cause. This is what science does - figuring out new ways to correlate observations with their causes. Progress of technology only means we're getting better at it. I don't see how you can revert back to the pre-industrial levels of privacy without rolling back the industrial revolution.