to become a payment system seems to be very difficult to apply around the world, but for some countries it may be possible
I prefer the bitcoin as it is today, as a money-making investment tool.
indeed the main vision of bitcoin is to become the world currency, but after seeing the rejection of some countries, it seems that it will be very difficult to doing
It can't just be a money making investment tool. If that is all it is going to be, where is the intrinsic value? It only holds value because people think that they will be able to use it for consumption at a later date. Without thinking that this will be the way we transact in the future, you are saying it is worthless.