In small communities, the person who cleans your toilet sends their kids to the same school as yours.
You see them at the soccer game.
A full person, not just the transactional slice of a person.
The more you interact with others as full people, the more you can grow as a human in a collaborative fabric of society.
But seeing a full person is not efficient; to scale, we need to see simplified snapshots of others, to make transactional decisions in that domain.
Scale and community are in tension.