I’d be interested if you could find that link.
I think that organisms are designed not only to interact with their own kind, but in a complex way with other kinds of things. Having enough stuff isn’t enough to satisfy one’s purpose for existing.
Cities have nearly always been net consumers of human biological capital.
I didnt find the video to which I had referred, but I found this article with an embedded video which describes and analyzes the same experiments.
WHAT HUMANS CAN LEARN FROM THE MICE UTOPIA EXPERIMENT
It is a very sobering concept, and difficult to avoid seeing that the same dynamics are going on in societies all over the world.