"People rarely take time to deeply reflect on the uniquely important fact that our species came within a hair’s breadth of total annihilation during the Cuban missile crisis. We learned long after it was all over that the only reason a nuclear-armed Soviet submarine didn’t discharge its payload on the U.S. Navy and set off a full-scale nuclear exchange between the U.S. and the USSR was because one of the three men in the sub needed to authorize the weapon’s use stood against the other two and refused. That man’s name was Vasili Arkhipov, and he’s responsible for the fact that you and everyone you love exists today. There’s a good PBS documentary about the event on YouTube if you’re curious."