Yeah, that was kind of my point. You don’t know for sure and I don’t know for sure. You’re guessing there is other life because you guestimate that the probability of life emerging is high enough for it. We don’t know what that probability is. I’m guessing it’s actually so low it happened only once. We’ve seen huge portion of the universe already but no signs of life. For now most people prefer your theory but as time passes my theory becomes more and more likely.