id: 0000,1B1
title: Anna Karenina principle.
date: 2024-02-08

Anna Karenina principle.

Pulled from Leo Tolstoy’s Anna Karenina:

All happy families are alike; each unhappy family is unhappy in its own way.

In essence, in certain cases, a state arises from many other states, but the lack of any single one causes the absence of the state of interest. As another example, animal domestication requires many specific traits to line up, and any misaligned trait leads to an animal or species being undomesticatable.