[AlexanderHowl]

Actually, we are probably on an Affinity 8 world with 200% overpopulation (there is really no indication that the Earth has a RVM above +0). Carrying capacity is for sustainable population, and deforestation, desertification, global warming, mass species extinction, etc. indicate that we are far beyond a sustainable population. Anyway, we evolved for a radically different world than the one we inhabit now, a world dominated by ice sheets, where the sea levels were 300 feet lower, and where multiple hominid species lived together. We are an adaptable species, but our ideal world is cooler than the one we inhabit now.