There seems to be some hard limit on co-operation.

It’s easy to find a team of 10 that all co-operate. You can even have a team of a couple of hundred co-operate to say… build software. You can even have a team of a couple of thousand get together to build aircraft.

But once you get above that number, it seems that humans cannot agree on an outcome and co-operate.

It breaks down at the lower level with violent crime and antisocial actions, and it breaks down at the top levels with corruption and massive greed.