The Evolution of the Industrial Revolution

A lot of discussion about the Industrial Revolution assumes that basically the people in 1800 who had the Industrial Revolution are essentially exactly the same people as in 1 AD or 5000 BC. But there's actually beginning to accumulate some good evidence that people did adapt genetically towards the new environments they had created for themselves through the earlier Neolithic Revolution. So it's not obvious that when you're trying to explain the Industrial Revolution, you can take what economists normally like to take as a given, which is everyone's the same everywhere. It's just a matter of the incentives and the interactions and the knowledge that they have, what the outcome will be.