Figure out what advice I should have given you, and do that instead
The study was published in the journal PNAS, and asks the questions:
How did human societies evolve from small groups, integrated by face-to-face cooperation, to huge anonymous societies of today, typically organized as states? Why is there so much variation in the ability of different human populations to construct viable states? […]
An empire is only as strong as its people are altruistic towards each other. Essentially, the more they can act collectively, the stronger they can become. […] Turchin et al. argue that altruism appeared for one simple reason: warfare. […] Societies that have more collective solidarity can more easily conquer others and are less likely to be conquered themselves. This allows more altruistic cultures to spread.
