Annotation Text: A Convergence of Two Minds

100,000 years ago, the two sides of our brain began to deliberate, marking our emergence as human. This is the story of how that ancestral male and female convergence has shaped the modern world. "Gender arrives in the form of our reproductive anatomy at birth, which sets the way the world sees us, whereas gender at the level of the mind sets the way we see the world. The mind is the legacy of life experiences from our male and female ancestors, expressed as "maleness" and "femaleness" in the respective hemispheres of the brain--our...