The Earth that Neil Armstrong left forever last month was a different planet than the one he re-entered in 1969. They won’t be making any more like him: a Navy test pilot with middling grades in his aeronautical engineering classes, husband of a home economics major, a man with so little media training that he bungled the first words spoken from the surface of the moon. The philosophy of his work was primal: “we’re required to do these things just as salmon swim upstream,” he once deadpanned at a press conference. I don’t even think they let people have last names like “Armstrong” anymore — a little too nail on the head.