Historians like Yuval Harari have written about how these tribal bands were largely democratic. Then democracy worked up to a city-state level before reaching a population ceiling.
Peter Bauman, Lawrence Lek on AI Reinventing Place
In his books Sapiens and Homo Deus, he also talks about how artificial intelligence is or will surpass the algorithm of the individual human brain.
Peter Bauman, Sasha Stiles on Writing Poets