Ok, look at it this way:
Earth: One planet. Life.
Sol: One sun. Eight planets. One with life.
Milky Way: ~200 Billion stars. Some with planets, some without. So say btwn 200 billion and 1 trillion planets.
Universe: ~200 Billion Galaxies. Each with said number of planets-200 billion to 1 trillion.
And then factor in the possibility of multiple universes, each with their own laws of physics, possibly more galaxies, possibly something completely different.
So it is sheer idiocy to think there is no chance of life anywhere aside from us-the high and mighty humans, one planet out of 1,000,000,000,000,000,000 ,000,000,000,000,000,000. ....
Possibly infinity.
Its just the "If an infinite amount of monkeys are at an infinite amount of typewriters, eventually one will rewrite one of Shakespeare's works."
The number of possible planets is so huge, it might as well be infinity. And the chances of no life, not even the simplest form, is almost impossible.
Then back at the multiverse thing-maybe one could be biological itself.
And depending on how you define life, our universe and its reactions and separate parts could be considered living itself. The only thing that is stopping us from finding life is the assumption that it has to be similar to us. You could say that everything is living, just not in the way that we are.
