> If a hunter goes out, learns out how to kill an animal, and then teaches everyone else in the tribe how to do the same, he is shooting himself in the foot bec

> If a hunter goes out, learns out how to kill an animal, and then teaches everyone else in the tribe how to do the same, he is shooting himself in the foot because he is no longer useful. The tribe can get their own food and his specialization is no longer special. So he dies off. Unless, he's ready to retire the hunting business and/or holds the monopoly for creating the weapons. This ignores competitive and first-mover advantages. Maybe he's the best hunter (because of experience or talent), or maybe no one else wants or is able to be a hunter (especially if it's dangerous or physically-demanding). Essentially, you're arguing that the sole hunter should keep a strong grip on the hunting monopoly by keeping everyone ignorant. In practice, this never works out well.