@ maz: Agree; but we may have a better chance off it than fiat.
Are you sure of that?
http://www.businessinsider.com/927-people-own-half-of-the-bitcoins-2013-12
What did you believed , that each of us will have 0.0x bitcoins and we could all be rich?
No more people starving , no more forests cut in the Amazon?
This ain't a tool to reach utopia and never was.
It's important to consider what kind of people those 927 individuals are, and how they're likely to spend their money.
To wit: are they more likely to steer the world in direction you'd like to see than today's global elite?
Besides, only about half of the total bitcoins are yet in circulation. Their holdings will be diluted and the coins will be better spread out going forward.