I hear how people say that cryptocurrency is a bubble. But I don't really get it. Don't really understand what they mean. Do they mean that cryptocurrency exist and lives only while we believe in it? And when we end to believe it will disappear? If so, than let's think philosophical. What do "believe" means? It means that we think that crypto will be money of the future. That it will be useful. That we will be able to pay and get paid with that. So we believe that it will something like fiat money. And if you think so too, then you will realize that fiat money is a bubble too. They exist and live because people believe in it. That it will keep be the only way to pay and get paid. They believe in its usefulness. And that it lives and will live forever. But if all people around the World will suddenly stop believe in fiat money then they will disappear. Just like crypto supposed to disappear. What do I mean? Everything is a bubble and everything lives as long as we believe in it. 
Very true when trading on forex fiat is really no different than crypto. Their markets on usd/yen goes up and down the same just no as much of a swing.
