Why do some people think that other coins will replace bitcoin? Is it because everyone is disappointed with bitcoin? While other coins also have advantages and value is rising, they are not bitcoin rivals. Bitcoins exist longer than any other coin and experience more of a test.
I know your point but the point of this thread is will there be another coin that will be on top beside bitcoin and ofcouse nothing is impossible that one day some coin will rise against bitcoin. But still if that happen bitcoin is no longer existing on the cryptocurrency world.