Was agriculture a good thing?

Before I went to college, I learned a simple narrative about early human sociological and technological development: our earliest proto-human ancestors were like apes. Then we started making tools, like spears. Then we had fire, which allowed us to get more calories from the same amount of meat. Then we developed agriculture, which allowed us to get more calories from the same number of hours and amount of exertion. These increased efficiencies led to art, culture, writing, civilization, etc.

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