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For a brief period of time.

For substantially longer we just hung out with our buddies, banged, and picked up food right from the ground when we were hungry.

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And had 20 children to have 3 survive?

> we see that on average 57 percent, 64 percent, and 67 percent of children born survive to age 15 years among hunter-gatherers, forager-horticulturalists, and acculturated hunter-gatherers.

https://condensedscience.wordpress.com/2011/06/28/life-expec...

Still bad, but much better than 3 in 20.

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