“…Some ancestor of ours, perhaps around a million years ago, not only learned to control fire as it came to using it for cooking. This was a radical change.
In addition to being easier to chew and swallow the cooked food has a higher gain of calories and nutrition. No, it would not have been possible to increase the number of neurons in the brain, because the brain’s energy costs – 20% of our body – is proportional to the number of neurons that he has and requires energy.
We would spend more than nine and a half hours if our diet was, eating raw food.”