There is stuff on the surface of the moon that was put there at the end of the 1960s. Stuff that was put there not by robots but by frail organically-evolved human beings. Put or left there by members of a species that only three score and six years before had been struggling with the basics of heavier-than-air flight. A baby born at the time of the Kitty Hawk flight [where liftoff and touchdown were separated by all of 260 meters] would barely have qualified for social security by the time that Neil Armstrong stepped on the moon. THAT span represents one of the most extraordinary feats of recorded history. Let us take a moment to be amazed. And understanding of the deniers. It is still difficult to wrap one's head around. Perhaps it is just easier to deny. Wow. And yet it happened. Wow.