Well, my point is that you don't actually know how diverse the authors are. It was just assumed by their identity. They could be immigrants. They could have

Well, my point is that you don't actually know how diverse the authors are. It was just assumed by their identity. They could be immigrants. They could have been abused as children, or hungry. They could have been raised by wealthy tennis pros. They could have spent their lives hacking on electronics and playing chess, or they could have spent their lives camping and herding cattle. You have no idea. And this is true of someone from any part of the world.