There have been several booms in the past with Bitcoin after a decline of more than 80%. History doesn't repeat itself but it rhymes. So, when you say that it cannot be like the booms we already experienced. It gives me more confidence that such a boom will happen again. Regulation are the element needed to make transaction safer. With regulations in place, consumers are more protected against fraud and will give people more confidence to invest in cryptos. If you want to buy cryptos as a speculation, you have to treat it as an assymetrical bet. Invest a small amount of money to make a big amount of money. This way you can handle declines of 80% or more. Decentralizaton is what is it is all about. I do not agree when you say that Bitcoin is not decentralized, that is the purpose of the whole concept of cryptos. Sure you can change them into fiat currency, but you can also sell gold for fiat currency, and averything else ...