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WiM001 - The Saylor Series | Episode 1 | The Rise of Man through The Stone and Iron Ages

The "What is Money?" Show

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Fires Is Critical for Communicating

We're an omniboas we can go anywhere. We can metabolize calories that are very efficient. It takes us ten or 15 minutes a day to get all the calories we need. Animals tha don't cook food have small brains. So fires is critical for seeingyo, your channel your fire, and you can light up a cave. And with the seeing comes communicating. The romans built watch towers. You put a fire in the tower, you can see it fom miles and miles away. You kate a signal system.

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