To believe that an infinite number of planets only offered life here makes absolutely no sense. A species whom survives had to have had built Starships. With the number of UFO sightings reported on Earth that's a solid conclusion. The fact that we have not had a more public landing suggest to me that whoever owns this planet is protecting it from outside interference and that we are only being visited by rogues. If we are being protected the question is why?  This planet is currently perfect and is a prize worth taking, why are we still allowed to live?  Is Earth not really the homeworld of humans, could humans be spread throughout the galaxy and we are merely an outpost colony protected by our own intergalactic species?  Faced with a cataclysm started over forgetting our history and where we really come from?  Our species allowing us to develop on our own maybe being some of the ships who've visited us observing our progress?  I'd wish they would make contact with those of us whom are ready to face reality for I find the company on this planet unpleasant immature and too barbaric for my taste.  I'm ready to migrate and be part of a true future.