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)
Hmm, I think no, cryptocurrency will not replace any fiat money. It is because there are factors that makes fiat money a fiat money. These fiat money are national currencies, and when you look to the words mentioned, "NATIONAL currencies". It means that a country hold their own currencies or group of countries. I think the only way for a cryptocurrency to be a national currency is when a new country is formed or a country that is using other currencies wants to have a reform.