I know it may not be possible right now, but do you think fiat will be gone in the future?
if it is lost entirely it is not possible, because in the interaction there must be an exchange process, so cash money will definitely be needed and will not disappear from the market but may not dominate again
I don't think so, honestly. Fiat has established it's place and role in the market for many years now, and people has relied on it too heavily to just throw it all away. Although we're in the time and era where using cash has radically decreased, it's still a major market player, for more people are still comfortable with using it. Therefore, instead of seeing fiat vanish, I would more foresee for fiat and crypto to interplay in the market.