Gene: Well, Bob, if you want to work about three hours a day for your living, be relatively healthy, and live about the same lifespan (35 years for both), then you would want to be a hunter-gatherer rather than a English factory worker.

Bob: But would I have learned the Pythagorean theorem?

Probably not. But what makes you think you would have learned the Pythagorean theorem as an illiterate English factory worker ca. 1800?

Bob: And would I have to speak Swahili?

I don’t know what this is supposed to mean. Modern Swahili is a literate language which serves as a lingua franca for trade, diplomacy, and education throughout much of East Africa. It developed as a direct result of extensive trade, cultural exchange, and colonization between the Arabian peninsula and East Africa, via the Indian Ocean. It has just about as much to do with a “primitive” or hunter-gatherer lifestyle as does modern English, French, Mandarin Chinese, or Hindi.