Bitcoin is a digital currency that has a global function because it can be used as means of payment transactions in various countries.
except in some countries prohibit the existence of bitcoin
And if bitcoin users will be found in every country of the world. Then that's the start to call bitcoin as a global currency and most of us are coming from different countries and I guess this is enough to treat bitcoin as a global currency. And right now with the news that Japan is trying to adopt bitcoin which makes it another achievement for bitcoin.
Japan has already adopted bitcoin as a main currency and that is great step to make bitcoin even more popular and that has drawn attention of many other countries and we can expect that those countries will also start following Japan in coming time.
As main currency for real? Please give me the link about that news, I even thought that they are just going to adopt it for business purposes and for making it as other methods of payment. Japan is really a good country and does have a lot of followers, for sure it's allies or nearby countries will soon do the same move as what it did.