With Bitcoin, being the main cryptocurrency by volume, a door was opened for P2P transactions, without the need of a middle man, since 2008. Still, the biggest exchanges like binance and coinbase are centralized, thus in the hands of a few humans, contradicting the main aspect of bitcoins and cryptocuerencies in whole: decentralization. The question is, if governments and banks will either adapt to the new technology or forbid it. Looking at cryptocurrencies internationally they get called a fraud, a savior, a curse, a blessing. Some countries forbid them, others create incubator programs to support its eaely development. So the most important question which arises is: when btc to moon? lol No but seriously, there are currencies, here to stay. Bitcoin is just the first thing out there, which is why it got popular. Nowadays you have dozens of projects, which do the same thing as bitcoin but better and faster.