The sky is a limitless concept in physics as well, if we so choose, in one’s imagination. But it does end in a sense when we arrive, in mind, body or both, at something solid and terrestrial.
Forty years ago, a combination of imagination and human ingenuity placed human footprints on our moon. The limit that was the sky had been breached, but the limitless space beyond that limit had also been newly defined by human presence on a different terra firma.
Both world and moon would never be the same again.
The fortieth anniversary falls next week and, thankfully, all three members of the Apollo 11 mission, Neil Armstrong, Michael Collins and Buzz Aldrin are around to celebrate the moment.
The anniversary will doubtless spur more talk of a return to the moon.
Most who remember those days in July, 1969 will like the sound of that because no matter how wondrous the technology that brings us web space, it doesn’t come close to the lingering sense of awe brought about by now antiquated technology powered by the desire of humanity to reach for a limit, and then step beyond it.