Originally Posted by AMSM

I'm a member of the space community on Google+. We were discussing the fact that there was a probability of approx .0000000000000000000001% that conditions on Earth were/are favorable for life. But if space is infinite, any number (even that small percentage) times infinity = infinity. Therefore there are technically an infinite number of Earth's in the universe, and the probability of you having a twin on another planet that is exactly like Earth is infinitely possible.