One of Mrs ERJ's oldest friends is visiting for New Years. This is a decades long tradition.
They are busy catching up on events of the past year.
The friend was talking about how there is a "sweet spot" for distance or space in relationships. Conceptually it is similar to "Geosynchronous orbit".
Orbits that are too far away have the bodies drifting away.
Orbits that are too close are a frenzy of change, the frictions of atmosphere and death spirals.
Geosynchronous orbits offer enough distance to provide the illusion of stability but close enough to offer durability.
I am going to have to think on that idea.