To change the world is not something easy to do and happen, and I'm sure bitcoin will be able to change the world with the advancement of Blockchain technology
No body knows what are waiting in future,but one thing for sure bitcoin will not be forgoten or get old.As technology improving bitcoin will also go with the flow.Bitcoin change the world in a way that many where earn more and able to support each family and income for unemployed people.This is how bitcoin change the world.Blockchain technology together with bitcoin will also be updated as years come.