> The norm for planet Earth is for the environment to change drastically over millions of billions of years, though sometimes in mere moments (eg: asteroid smac

> The norm for planet Earth is for the environment to change drastically over millions of billions of years, though sometimes in mere moments (eg: asteroid smack). Life as we know it since its inception has also survived all of those changes. Life itself survives, but most living things die. It would be pretty disingenuous to say "hey, an amoeba survived, who cares all other life is dead" - because somehow every second commenter seems to have the incredible insight "but the planet earth will not literally be destroyed, so why should we care".