Bitcoin is really changing the world. The idea of bypassing banking system which is sometimes not that very accessible and not that very secure. But I think the problem that bitcoin would encounter in the future is that very few people would be able to access this kind of system because of lack of knowledge and financial problems..
I don't know if Bitcoin can change the world, but it has changed my world. After working on bitcoin for more than two months, the friendship between the few friends he has harvested is now going to leave and tears will not be able to fall off.