With all due respect to those who took the plunge and made boat loads of money on bitcoin and other cryptos, it’s just speculation! You can justify it anyway you want but they are just momentum ponzis because there is Nothing there, just like fiat currency. I believe blockchain is a great development that will have usefullness in many applications. I believe that when someone actually backs a digital crypto with gold and or silver it will become the new reserve currency to replace the fiat only US dollar. That said the current cryptos that are backed by nothing are worth nothing just like fiat currencies. As long as there is a greater fool out there they may have value at any given moment but when the music stops they will all be as worthless as all the fiat currencies.