 Whereas before, fire was literally not possible because if you don't have oxygen and combustible matter, you cannot have wildfire. And then we have something like 6,000 unique mineral species on Earth, which is vastly more than any other planetary body we've ever discovered, including the Moon and Mercury and Mars and all of our sibling planets. And most of those can only exist in a high oxygen environment. So the mineral diversity of Earth that defines our planet is also largely because of life.