> We are indeed small and insignificant, but alone? Doubtful at best. I often read this, but I have no idea why this should be the case. Since we only have a s

> We are indeed small and insignificant, but alone? Doubtful at best. I often read this, but I have no idea why this should be the case. Since we only have a single data point, we can only really infer that the probability of life naturally occurring on a random planet is greater than zero. We do know however that there are a finite number of stars in the universe, let's say 10^24. If turned out to be the case that the actual probability of life occurring on a planet was say, 10^-40, then we could very well be alone in the universe.