Wow that is also my estimate of how many angels can dance on the head of a pin! In all seriousness, I would think that a) finding life on another planet in our

Wow that is also my estimate of how many angels can dance on the head of a pin! In all seriousness, I would think that a) finding life on another planet in our solar system and b) determining whether it shared a common ancestor with life on Earth is the next thing that needs to happen to refine our assumptions for terms in the Drake equation.