Maybe it already happened once. Mars could have easily seeded life on young Earth, it seems, but I don’t think we get another go around. Eventually, the sun will be a Red Giant, and long before that it will have grown so bright it will boil away our water.
So I’m pretty sure we have to quit doing all these side quests and mini-games and get back to building living habitats and re-engineering life for space like the cool pictures in the simulation trailer.
