Get real, you won't defeat fiat currencies, forget about it. Invest in crypto, play your cards right, and make a profit, then turn that profit into fiat and give yourself a treat (or if you were smart and lucky enough to make a big investment, live the good life), cryptocurrencies won't overthrow fiat, not in our lifetimes, but cryptos are a good way of making an easy profit, it doesn't takes a genius to know you have to buy low and sell high.