Bitcoin is not the evolution of something. It is the new era of currency.
um... think you've contradicted yourself there, you're implying that bitcoin is the next step in the iterations of currency, but denying it at the same time. but that's exactly what it is; bitcoin is simply the next step in the evolution of currency that we're come to. it might not be too much longer before we completely break away from fiat and move on to the era of digital currencies.
BTC brings the new era of digitalization and millions of people are flowing in the waves of BTC. So it is the future of planet, the digital planet.
as much potential bitcoin has for helping to urge in the digital era, i still think it'll be quite a while before it actually happens, and for a very simple reason: a good portion of the world has yet to acquire the infrastructure to support this change. until the third world countries of today are brought up to speed, this world won't truly have moved on.