Most people believe that humans will sooner or later establish open contact with aliens.

When it happens, we might get an invitation to join what scientists and science-fiction writers refer to as the "Galactic Club".

There is also a possibility that advanced extraterrestrial civilizations will not welcome us a new members.

So, naturally we might wonder what criteria will be used to determine whether we will be able to enter the Galactic Club or not.

Our world will change completely once we enter the Galactic Club.