I don't believe either, and won't until I see undeniable evidence.
Also, I've never understood the "ignorant!" argument when it comes to people not believing there are extraterrestrial life forms. There was once a time when there were no humans, so why is it so hard to believe that we could be alone in the universe
right now? Just because the universe is large and endless in extent, doesn't mean it can't be full of nothing.
