I believe that crypto currency can change the world and we also know that one of the very promising coin is bitcoin. By this said coin it has a capability to change people's life and world why? It's because of high value and  it will take you away from any bad guys that want rob right? since we know that it is virtual so many people encourage to invest to increase their profits. This technology are very popular and it has different blockchain technologies are created by people. Now a days many successful people testify that this kind of technology change their lives and share stories to everybody.