Actually, all it requires is that the universe is somewhat sparsely populated—there is no requirement that there must be no life anywhere but here.
Furthermore, for all we know, maybe there is no life in the universe anywhere but here.
Actually, all it requires is that the universe is somewhat sparsely populated—there is no requirement that there must be no life anywhere but here.
Furthermore, for all we know, maybe there is no life in the universe anywhere but here.