They can also round them up and let them live lavishly. There still are walls, limits, secrets of course. Just saying there are any number of ways to advance

They can also round them up and let them live lavishly. There still are walls, limits, secrets of course. Just saying there are any number of ways to advance and they are all available to a sovereign willing to get after advancement. Size matters too. China has size enough for these things to be true.