Hans Bohlin Posted about 3 hours ago Yuval Noah Harari: What explains the rise of humans? Yes i did. But I failed to see any clear connection between the hypothetical "Brain Catastrophes" and the statement "out of control". We are who we are, including all evolutionary "infections" and including the both brain half's capabilities. If we are "out of control", we still is the top dog of the ecosystem, so Yuval's statement of "control" still seems very reasonable (if you interpret control as I did above).