Imagine that in 1900, you owned 100 acres of land someplace in the Midwest. It's very easy to see where your fence ends, your neighbor's property begins. Now let me ask you, where in the sky does your property end? Does it end at 1,000 feet, 5,000 feet, 10,000 feet? It makes no difference, because other than the novelty of a few hot-air balloons, man couldn't fly.
But within three years, he could. Now all of a sudden, it was very much relevant whether your land ends at 1,000 feet in the sky, 5,000 feet, 10,000 feet. And you have to have someone arbitrate that. And indeed, that's exactly what happened. And five or ten years from now, when Amazon wants to deliver a package over your house to your neighbor from that UPS truck, we're going to have to decide: Does you property end at five feet, 10 feet, 50 feet, 100 feet? Where does it end? And there is no ideology that will tell you where your property ends. It's an operating system.
