But we must not deceive ourselves and think that the Fiat will be replaced by bitcoin because it will not happen even if it is 30 years and the same way I do not believe that they were to create a Fiat that will be used in all the world because for that we already have the American dollar.
People don't know what they are talking about when they want Bitcoin to replace fiat. The best possible outcome for everyone here is to have as many competing currencies as possible. What else can we really wish for?
If one implodes, we can hop over to the next one. If that one implodes as well, there is another one. The more currencies we can use as hedge the more overall strength the financial system will have.
Bitcoin complements the current financial system as yet another alternative, but one not directly tied to a government. Sounds like a great safe haven asset to me, just like gold is right now when things go bad.