Among the Yanomami (per Napoleon Chagnon), killing outsiders was not “murder,” it raised status. Men who killed had more wives. Violence was cyclical and regulated, not collapse. Humans are not universally anti-killing, mainly in-group.

That pressure kept population density low and groups mobile. Less surplus, less accumulation, weaker incentives for technological scaling. Over ~10,000+ years this maintained a relatively stable human–environment equilibrium.

“The weirdest people in the world” - has a very good roots cause analysis of all this.

Basically banding into groups and guarding against outsiders is the default human behaviour. It just works that way if you do a game theory analysis of our social structures. They usually don’t scale too well, but that’s what we revolved to do as social creatures.

It’s actually and very counter intuitively the Catholic Church that lead us to individualism, common laws, nationalism, even the Industrial Revolution and the scientific method.

It sounds bizarre but if you follow the historical logic, in a round about way it has paved the way for the modern world, which the rest of human civilisation was forced to adopt, either to compete or at gunpoint.

There are few books I read in a year that change the way I look at the world, “The Weirdest people in the world” was definitely one of them.

Interesting claim, though not enough detail to disagree with constructively. I'd agree that the Catholic Church had a big influence on our history of course, though among the things you mention I would only count common laws as being intertwined with Church history, everything else pre-dating it or being independent of it in my understanding.

I'll have a look at that book however: what were the other books?

Yes, good point. But generally, that's not the case. Though what you hint at is a bit more present in all cultures than what we would like to admit.

As far as 'population stability' though ... quite a lot of systems achieved this kind of stability without quite the same kind of social order.

But good point.

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