Everybody goes down eventually. Even the US. 100 years ago, Britain was the Top Dog superpower of the day. A few hundred years before that, Portugal and Spain

Everybody goes down eventually. Even the US. 100 years ago, Britain was the Top Dog superpower of the day. A few hundred years before that, Portugal and Spain were the twin Top Dog superpowers of the day. A few thousand years earlier it was the Romans and Egyptians who were the Top Dogs. Nobody lives forever, no matter how Exceptional they seem.