“Omigod, Earth’s core is about to explode, destroying the planet and everything on it! That is, unless a gigantic asteroid strikes first. Or an advanced physics experiment goes haywire, negating space-time in a runaway chain reaction. Or the sun’s distant companion star, Nemesis, sends an untimely barrage of comets our way. Or … ” Gregg Easterbrook —We’re All Gonna Die! (Wired)