By examining the origins of human behavior using a geographical approach it became possible to reconstruct a much clearer global understanding of our ancient cultural history. DeMeo was able to show the cause-effect relationship between "traumatic and repressive social institutions" and "destructive aggression and warfare." The great hope of mankind is that there existed "an ancient, worldwide period of relatively peaceful social conditions, where warfare, male domination, and destructive aggression were either absent, or at extremely minimal levels." It even became possible to identify the "exact times and places on Earth where human culture first transformed from peaceful, democratic, egalitarian conditions, to violent, warlike, despotic conditions."
Knowing the origins of violence we can retrace our steps along the human journey to recognize that what we call "civilization" was, in part, a response to a need to armor our selves and our society to protect against the attacks of violence that originated in climate change several thousand years ago. Peace is possible now that we know what created war. James DeMeo has opened a new way to look at war and peace.