But it is surprising that life could only appear on our planet, since it doesn’t seem to have unique features.
What does “could appear” mean here? 1 in 10? 1 in a trillion? 1 in 10^50?
Remember we live in a tiny universe with only ~10^23 stars.
What does “could appear” mean here? 1 in 10? 1 in a trillion? 1 in 10^50?
Remember we live in a tiny universe with only ~10^23 stars.