It has not changed in its quality for millennia.
We may look like we have advanced externally but we haven't transformed internally.
We are still greedy, fearful, devisive, spiteful, envious, petty, tribal, violent, and burning with desire.
Our ancestors 100,000 years ago had these same problems.
Much has changed in 100,000 years, but why not these qualities of our minds?
We most certainly have positive attributes, but our human problems of war, starvation, overpopulation, nationalism, fear - these all stem from a structure within the human mind that we haven't yet let go of.
All the political and religious systems have not yet found a way to end these.
The real revolution is to see these at work within ourselves and end them.
The real revolution is within.