that is really good one
hoping the world just using a single currency it very good for the economic and there is no diversity in each other nation
and that just a happy dream for every human living
It is not possible. There is always a competition among countries and all the governments of the world will never agree upon having just one currency. A currency also represents its country and economic power. In one way, it is also good as this develops a competition among nations and they strive more resulting in a better society. Bitcoin can be used by any person regardless of gender, citizenship, race or age. This is the beauty of this coin. The world has one common coin and more coins too.