In my point of view it would be very hard to Bitcoin can replace fiat. To become a global currency Does it have to beat all currencies? Indirectly, Bitcoin is used globally, it means that Bitcoin has become one of the global currency without having to get rid of another global currency.
Correct me if i wrong, thanks
I agree with that. The definition of a global currency will tell us that this kind of currency is not being bounded by political boundaries and that is the nature of cryptocurrencies, it is not limited to one country but to all nations in the world. Bitcoin as a cryptocurrency can be considered a global currency since it can be used all around the world. Bitcoin doest need to replace fiat currencies and its impossible to do that, but even though it cannot replace fiat currency it is still a growing global currency that world has.