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.
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.
I'll have a look at that book however: what were the other books?
These are off the top of my head.
The Catholic Church thing - yea that was quite unexpected for me, and apparently accidental for the church too - the basic premise was - they banned cousin marriage, and heavily enforced it throughout all of society - kings to peasants - this drove people to move around and settle outside of their home towns, driving up individualism and just changing the way our brains work on a neurological level - we have always been a close nit kin social structure animals.
The e book explains it quite well with tons of historical data, neuroscience, comparisons with different countries, continents and social structures.
It got me to “understand” India on a much deeper level since I moved here from Europe, and not get pissed off at people for “not thinking things through”. But also appreciate how small and consistent things can drive profound changes. Also how did china/ussr speed run the Industrial Revolution so quickly - spoiler alert - they copied the same “ban cousin marriage” thing
The Catholic Church did ban marrying first cousins and some other relatives (there is a complicated rule) which broke up clans. It also deserves a lot of credit for the scientific method, although that was not a deliberate strategy - it just emerged from theology and lots of educated people within in.
On laws and nationalism, there were many states and legal systems that predate it. Rome or Athens in Europe, empires, kingdoms, even a republic or two elsewhere. Legal systems go back to Hammurabi. Breaking up clans (requiring better laws) and distinguishing between secular and religious laws are something it deserves credit for.
I am puzzled by what the Church contributed to the Industrial Revolution though.
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.