The number of bitcoin is only 21 million, is that enough for the future?
given the vision of bitcoin to become world currency?
what do you think of this?
It can not become the world's currency. Low supply and unstable markets, it can not be considered as a currency of the world. It can not meet the criteria to become a new currency in the world. Besides, Bitcoin's future is bleak because it is not upgraded and the moderator is anonymous. So we should not expect Bitcoin to become a currency, it's just a money transfer tool.