some countries banding bitcoin , some encureging , some people say its a replacement of visual currency , some saying its just a scam ...... whats the real future of bitcoin 
Our world is now towards digital so it is not possible that bitcoin will succeed and penetrate the world since it is the most in demand currency and some altcoins usually depends on bitcoin because of its value of exchange. As long as the demand is high it will be very successful. Hoping that supply will be available to all who demands specially in the next 50 years.