Could you see a future wherein the entire world shares one global currency, be it fiat or crypto? If I think it in a scifi kind of way, it would most probably be some digital currency that could all just use. It doesn't even have to be in this century. Maybe the next?
Yes i have positive mentality about crypto will be one global currency in near future. At present time worlds largest economic country are thinking about cryptocurrency and some also accept it. They also thinking that day by day people are being too much busy and they have not enough time that handle hard money. So if any body choose any alternative at present time cryptocurrency may be the best choice.