I found this expression on the news channel about the crypto currency: "Anyone who will try to buy coffee for cash in 2023, runs the risk of causing laughter from the seller, that he does not use crypto currency."
how do you think, is it realistic? Can a crypto currency replace national money?
I think that it's possible, but it will take more time.
It possible but I don't see this happening so quick because the use of cryptocurrency have not be legalized by many countries, few countries are interested in using digital currency so it will take a while.