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?
My answer is simply true, because buying and selling remain in front of the ordinary currency or the dollar even though there are many world currencies, but the dollar remains standard will certainly benefit the dollar as a standard currency and bitcoin as buying and selling, hopefully useful and success for all of us