" By shifting to a highly digestible, cooked diet, our forebears no longer needed the massive molars and expansive guts that apes need to process fibrous raw foods. And with so much more energy available, we could suddenly afford the metabolic demands of a larger brain. "

― Thor Hanson , The Triumph of Seeds: How Grains, Nuts, Kernels, Pulses, and Pips Conquered the Plant Kingdom and Shaped Human History