When I visited China, Hong Kong, and Taiwan several years back, just before China took control of Hong Kong, I thought the move may eventually backfire on China. The people of Hong Kong and Taiwan have had many years of freedom. It would take a great deal of force to just subdue them. It is more likely they would spread the idea of freedom the more they interacted with the mainland Chinese.
It is more likely they would spread the idea of freedom the more they interacted with the mainland Chinese.
Thus, the Social Index. Keep them from traveling.