Human being wander in the outer space carrying nothing but high technology only .
Farewell to their hometown and float with debris of satellites.
Putting it in perspective, what is the difference between Human being and space debris?
Mankind, banish themselves to the space along with their remaining technologies, away from their home soil forever.
Putting it in a macroscopic perspective, there's no longer differences between mankind and the long existed debris of technology. They drift along together, all same as space junk.