What do you think, whether in the future bitcoin or other crypto can replace the role of currency in each country and leave fiat currencies such as usd, euro, yuan and others.
Yes to me its likely possible but not in this present dispensation, maybe generations to come which would have been on a long run, then the whole world would have been developed, civilized and digitized, a time where technological advancement would have been achieved everywhere, and the world economy would have attain unism, robots and technological devices will be use in performing operations like war, house chores, messengers, driving, flying, teaching and agricultural activities while buying and selling are no more in fiat but programmed on robotic devices among others.