Now we can see some countries are regulating bitcoin and some government don't like it.Otherwise Bitcoin hasn't a stable price.
So my question is can bitcoin be a main currency of world economy?
What stupid question is this?Bitcoin will never become a worldwide currency because every country has their own,and theres no point of having this because bitcoin can be used without claiming to be a worldwide currency and besides this coin can help all the existing fiat in the whole world to provide service and transaction for the human race