He takes his time on the nine rungs of the ladder. Then another five seconds or so for the initial, almost hesitant, contact. His foot reaches down, rebounds, and then settles onto the ground, which reminds him of powder. Neil Armstrong is on the moon. The first person ever. More than half a billion people, at that time around one-fifth of the world’s population, hear the sentence spoken on July 21, 1969, at 2:56 a.m. Greenwich Mean Time, etched in our memories forevermore: “That’s one small step for a man, one giant leap for mankind.”