Civilization is the result of agriculture and the need of fixed populations to defend their farmland and fields of food, and religion arose as a result of civilization, not the other way around. The USSR collapsed because of its rejection of reality, e.g., the market economy.
There was no mention of the recent efforts to study the extremely wide human existence in the rain forested areas of the Amazon head waters. These were agricultural people.
It turns out that the rain forests being “destroyed” exposing the previous extensive remains are in effect weeds in the old croplands.
The extent of the human existence hidden by the forests are visible in radar and other such methods.