I had once read an interesting detail in a book about the first manned moon landing back in 1969. At that time, the book said, some of the very elderly—men and women born in the nineteenth century, old enough to remember a world before automobiles and television—had been reluctant to believe the news. Words that would have made only fairy-tale sense in their childhood (“two men walked on the moon tonight”) were being offered as statements of fact. And they couldn’t accept it. It confounded their sense of what was reasonable and what was absurd.

