I would like to know if cryptocurrency will replace fiat money in the future, also if so how long it will likely take. Also, I would like to know which coin you think would take over if one will. (E.G. Dogecoin, BTG, LTC, XMR)
No one can tell but it's possible to replace fiat money to bitcoin. If government legalize bitcoin into their country the popularity of bitcoin all over the world is undescribable, the investors trust bitcoin. The number one cryptos in cryptocurrency industry nobody can take over even no one can surpass because bitcoin is the most trusted and valuable coins in cryptos market.