“A lot less energy to convert animal into animal than vegetable into animal. And the brain boost we got from that bonanza. Tools, language, cooperation. You can see the incentive for all the advances that make us human. More meat. Bigger brains. Bigger brains. More meat. I wonder what it looked like, when we first tasted fresh blood. What did we think? What did we feel? That moment when everything changed. From scavenger to predator. Hunted to hunter.”
