Although I dont think the dollar will vanish completely, bitcoin definitely will need atleast 50 years to become a globally used currency. Big changes like that dont happen overnight guys.
the point is that maybe this will not happen at all, unless a big portion of the population start believing in bitcoin and use the cryptocurrency only, you can simply think that many like paying with fiat
because they know that they are using a form of money that offer a kind of security, and it's backed by the governemnt even if this mean making coins out of thin air
Thats the problem, because if its backed by it, then the backing can be taken anytime, so its only worth because of promise. Now what kind of financial stability is that if your value is only value because somebody else says it?
Sure value is subjective, but we are talking about 1 entity deciding what is valuable and what is not, instead of letting the community and the free market do it.
I can never understand why people are so brainwashedly fanatic about fiat money, it just doesnt excite me anymore.