At one point the planet was nothing but a hot 230 °C ball. How much pedantry do you want to get in to? "Ever" vs "human history" almost seems like a nitpick. _

At one point the planet was nothing but a hot 230 °C ball. How much pedantry do you want to get in to? "Ever" vs "human history" almost seems like a nitpick. _We_ have never seen it this hot, ever.