The way I usually say it is like this: Communism works best between two spouses, a little worse with immediate family, a little worse with extended family, a l

The way I usually say it is like this: Communism works best between two spouses, a little worse with immediate family, a little worse with extended family, a little worse with orthodox religious communities. People can see the trend. As the number of people that get involved goes up the total number of connections goes up n + 1 choose two and the chance that you deeply care for them goes down.