Over time, bitcoin will take its place in the financial system of the world, because there is progress and the whole world turns to digital currency every year.
Bitcoin will be the world currency, I'm sure of that. Only a matter of time, when and how because as a currency used by many countries, there must be regulation. The problem is that bitcoin is anonymous and the system is peer to peer, difficult to accept in many countries. So, there must be a meeting point that allows bitcoin to be realized as digital money in the future.