Those tribes have been optimizing their hunter-gatherer lifestyle for thousands of years. Like the rest of modernity, they have innovated (increased their produ

Those tribes have been optimizing their hunter-gatherer lifestyle for thousands of years. Like the rest of modernity, they have innovated (increased their productivity) on their practices and their culture and society has evolved. So I see this point as being evidence to GPs perspective, rather than your own, respectfully.