my mind always asks, if one day bitcoin gets legal regulation, and is recognized all over the world. will fiat currencies continue to work? which country will be saved by the economy? and which countries are negatively affected? Or not effect in country. because in my opinion. when the legality of bitcoin is recognized throughout the world. There will be no currency difference. all values ​​are the same. or will become commodity items such as gold etc. Give me your opinion