And I hope later that more people will know about Bitcoin and that they can use it in the future.
I also do not see this happen at all its just to much because the bitcoin is very dependent on the dollar these days so I think this is not gonna happen.
Also the point is that banks and other people/company's will not let this happen the dollar is already to big, a lot of people around the globe are depending on it.
Yeah, in future more people would start using bitcoin as a currency but that would be their secondary option, the primary option would be to use dollars for making purchases.
I think bitcoin will be more powerful in future, but it cannot replace paper money as the paper money is widely used and accepted but many will face a good competition from bitcoins in future.