By our universe you mean the part of the universe that we observe? Like people believed the world ends at the sky firmament? How would you explain them why unin

By our universe you mean the part of the universe that we observe? Like people believed the world ends at the sky firmament? How would you explain them why uninhabitable planets don't exist? If all universes start in the same state and evolve deterministically, then they go through the same evolution, then if one produces life, then all produce life.