No, Bitcoin cannot replace dollars soon.
I mean That if XT kinds of hindrance will regularly come in its path and prices keep on fluctuating this much, then it will be very difficult to replace dollars which is the most widely accepted currency.
Most people bring ice in from the north on ships, that is the most widely accepted way to do it, and what people do now is what people will always do. Also people disagree on the details of how to build refrigerators.