I don't surmise that it will supplant the dollar soon, yet over the long haul I trust that the bitcoin will be more significant. Why? Since the entire world can utilize it, it has natural esteem, it can be separated into modest bits and utilized for microtransactions, and the world bank doesn't control it. I think inside 100 years we see the USD fall, yet before that we will see significantly more war as nations martingale to attempt to recoup misfortunes.
There were new USD falling but they can still handle to go through, but when bitcoin availabilit and adaptability occirs ,USD might not no longer stablize its position due to the economic problem of America. Yet bitcoin have need more developments to move.
Bitcoin will become more popular in future but its hard to believe that it can ever replace dollar or take over it as dollar is the strongest currency and more popular then bitcoins and it is widely used and accepted which is missing with bitcoins at a moment and even in future we cannot expect that each and every person will start using bitcoins.