Sapiens
What You Will Learn
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The Benefits of Fire
Humans used fire 800,000 years ago and still use it on a daily basis. Fire allowed us to divert more evolutionary energy toward our brains in the first place. Chimpan's E spend five hours a day chewing, but because we could cook things like wheat, potatoes and rice, normally they're pretty much indigestible in the natural form. But when we cook it, we kill all the germs, we kill the parasites,. We make it easier to chew and digest the normal foods. So that's a lot of time for us a day saved right there.
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