When I was visiting the space center in Huntsville, Indiana, I had a chance to talk with one of the volunteers. His name was Brooks Moore (https://www.youtube.com/watch?v=O3hudRA3yL8), and he had been the director of navigation systems for the Apollo (and other) projects.

The first SpaceX barge landing had just taken place, and I asked him what he thought. He got a faraway look in his eyes, and agreed that it had been spectacular. For those guys, it must have seemed like all of their dreams were coming true.