“We also happen to have had two superpowers that came into existence after a series of world-consuming conflicts. Through a terrible act of disenchantment, one world leader was killed, and his policy of racing to the Moon became a nation’s policy, which drove members of our species to create space programs around the world. As a result, when an asteroid that could once again destroy the dominant form of life comes along, that dominant species (you and me) is ready to do something about that rock or block of ice.”