Comment Re:Security through obscurity? (Score 1) 1015
You're comparing an extremely finite place like Earth to an (for all intents and purposes) infinite place like the Universe. If the European "invaders" saw that there was virtually limitless "gold" someplace else, that was easier to get and where they didn't have to deal with the locals to get it, do you think they would still have invaded the Americas?
Yes, maybe we are fairly unique in the grand scheme of things, but we are still one diverse biosphere out of a conservatively estimated 100 billion diverse biospheres in our galaxy alone, times that by the estimated number of galaxies in the known universe, now standing at some 500 billion (scientists are only estimating by the fraction of a fraction of the universe that they can see as well), and you start to get an idea of how totally insignificant Earth really is.
Earth was born in space, created from the smashing toghether of smaller bits of space debris, whatever is here is certainly elsewhere and likely in far, far greater quantities.