How long have there been *true* Introverts?

Evolutionists believe that human beings shouldn't be considered Homo Sapiens anymore. We are getting to the point of calling ourselfs a new species, one sperate from the Homo Sapien, called the "Homo Sapien Sapien". This means the "Man who knows he knows". They believe that we are seperate from the original Homo Sapien in that modern man has the ability to look within himself and understand what he knows (as oppossed to just knowing); introspection. They believe that, some where along the line, man learned "reflection". We have seen it ever since the days of Socrates, through people like Albert Einstein, Thomas Edison, Jung, and of course, through to day.

My question is... are we (man) getting more and more Introspective as time goes on? Are there more and more Introverts than before? And, considering we are in the computer age and everything, will human beings start to devlop more Introverted? We have less of a need to "do" things in the outside world than ever before, because everything is getting much easier... simplier... for us.

Is everyone going to be an Introvert one day?