I think somewhere out there an alien is wondering the same thing,
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Given that what we know about our universe and that it is deffinitly infinite, there should be a reason to believe that there is sentient life out there some where. If one all mighty power( not going by any religion in case I offend you) had created such a vast space, and we have peeked at just the boundaries of our own universe, who's to say that there isn't life out there somewhere in the rest of the universe. We do have a neighboring universe that is right at our doorstep metaphorically speaking. There could be alien life there. The word alien though, is a sketchy word though. Most use it to describe ET or some use it as any person that is not a US born citizen. The word itself is difficult to fully understand. But as in another being from another planet, I see why not. I really do beleive that there is other life out there somewhere, and that the 7 billion people on this planet is nothing but a grain of sand in the beach we call space.