Sir Ronald Aylmer Fisher, a twentieth-century statistician and geneticist, pointed out in 1966, “The ‘one chance in a million’ will undoubtedly occur with no less and no more than its appropriate frequency, however surprised we may be that it should occur to us.” Consider the 7.5 billion people who currently make up the world’s population and you can be sure that the highly improbable is happening with regular frequency. The “one chance in a million” takes place every second.
