Just like everything They try and tell us to keep the truth out of our lives, that the sun has its own independent fuel or that it runs on nuclear fusion, or that evolution spanning millions of years, or the slow process too of making mountains and canyons, it's all just a slow process and we need not worry about sudden change, certainly not Catastrophism, why certainly not in our lifetime or any of our children's children's children any time soon. Ah, comforting that.