To my knowledge people have talked much about bitcoin bane and it's rejected from the world but still they are not successful and it won't be true even we will not see that time when bitcoin will reject from the world and it is not controllable so people can use it every where in the world with out any further force and people use it for their good usage now.
For me, Bitcoin is something that can change the financial system in a big way. With the strength that exists, Bitcoin can have a tremendous impact on the financial system that has existed at this time. I am optimistic that Bitcoin can be accepted by society and we all only need time so that it can all become a reality.