A lot of the comments: http://xkcd.com/638/ http://xkcd.com/638/ I don't know much about all this but we haven't even left our solar system (if we truly have t

A lot of the comments: http://xkcd.com/638/ http://xkcd.com/638/ I don't know much about all this but we haven't even left our solar system (if we truly have then fine galaxy). I mean physically as I imagine other emissions do get out but idk. And we find new life forms on Earth all the time. Are we really qualified to say there is no life out there?