The answer has been right in front us all along. What matters is the place, and what happens in a place. In order to fully discover the full importance of a place, it would be illogical to call it the earth. The earth is too big, as a system it is described in terms the larger solar system. It would be far better to have it make sense of it in a smaller way, one with people in it and what want and need to do.
The Things Compacity
Compacity is the measure of the New York Metropolitan Area. It has a fairly distinctive line around it, and that defines it reasonably well. People know exactly where they are in the NYMA and when not. Lines separate one thing from another and the stuff that makes the NYMA separate from everything else is tied to the density of things per unit of land. At some point, the area is not dense enough to be metropolitan. These densities are measures of compacity of everything we know and it remains a vague notion.
Politics and Plans
Lines are also the subject of power. I am a researcher more than a practitioner. The lines in the world of politics and plans distinguish one leader’s area from another. Your leaders may be political representatives or other types that reveal areas of distinct responsibilities for services such as police, fire, and sanitation or how water, gas, electricity, and bytes serve your community. The lines are multi-linear they can define you by your zip code or the train line you use as equivalent to career routes to and from places that shape human life.