The thing that gets me is that we, humans, are pretty complex organisms. We can communicate with each other better than most species, we can build things to make our lives better; I have never seen a giraffe driving around in something that one its relatives designed and built. I just dont understand how enough random series of events could have happened to have brought us to this point without some sort of divine intervention. According to scientists the sun and solar system was formed by condensing matter into a ball of gas that ignited and was surrounded by planets, one of which is the ideal distance from the sun and has the correct proportion of elements for life to not only exist but to thrive. Then life was started by a bunch of amino acids that formed one cell organisms which eventialy became us? That is a lot of luck or coincindence. That is hard to believe that there wasnt an outside influence. Like someone said, who created the aliens? Might have been God. To answer the orignal question, if we are alone, there is a whole lot of wasted space out there.