True, Cryptocurrency is here and the world is changing. Just like the owner of twitter said, there is future in crptocurrency and say years from now. Bitcoin will be the sole currency of the world.
Come to think of it, having a decentralized system that government has no control over. Planet earth should be looking forward of having one online coin that does not require conversion, used in any country and accepted by all.
better to have competing coins... not just one.