I don't think crypto will take over the world as a whole. Crypto will follow the same trend as Fiat where the rich get richer and the poor stay poor. Don't get me wrong, crypto will play a big role, but if you look at a lot of countries you will find a big portion of the population is living from hand to mouth and can't afford to invest a little in crypto. Crypto will only circulate in the higher income brackets. Also at some point governments are going to try and regulate it to prevent people from making too much money, we all know governments don't like coming second.