Roy Barzilai is an independent scholar and author of The Testosterone Hypothesis: How Hormones Regulate the Life Cycles of Civilization and Sex Wars: How Hormones Drive Gender, Race, & Culture Conflicts.

We talked about his hypothesis of how hormones regulate the life cycles of civilization, how the sun effects growth cycles, chronobiology, and individualistic vs. collectivist societies.

As always this show welcomes independent thinkers presenting novel ideas and Roy’s hypothesis represents one of the most interesting and wholistic theories of the rise and fall of civilizations coming from outside mainstream institutions.