Origins: The Journey of Humankind - Season 1 Episode 4 The Writing on the Wall
If knowledge is power, communication is the jet fuel, the delivery system, the gift we give each other that links the modern world. But it has a dark side.
- Genre: Documentary
- Studio: National Geographic
- Keyword: human evolution, fire, medicine, money, evolution, communication, humankind, technological evolution
- Cast: Jason Silva, Mark Monroe
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