Some international students choose to work abroad after their studies. What causes brain drain?

The growth space of domestic academics is so poor that non-academic people have been managing academics in China, so that some quantitative standards must be used to evaluate academics, which may be the number of published papers or the number of indicators of papers. This is too simple and rude. Moreover, the administrative intervention of the education and scientific research system is too great. If you just like to engage in academics behind closed doors, it may be difficult to have enough room for growth in China. I once asked one of our professors, tenue, what is the scientific research environment in the United States, and he gave me the answer that scholars can do research with relative peace of mind. Although you have to ask for money everywhere in America, it's better than running around in China. I won't talk much about the third social environment, such as the uncertainty of policy. Everyone living in China knows what I'm talking about. But according to my observation, this is the most important reason that affects most people to return to China, and basically because of this, cattle people in non-academic fields are still reluctant to return to China. For example, some Daniel of Facebook and Google I know can get much higher offer in China than in the United States, and the technology worship in the Internet industry has better room for growth, but I always choose to give up when considering this issue. What we are doing now in the policy of encouraging international students is actually only a very good point. If we expand the scope, there will be a lot of fish in troubled waters (although there are many now), which we don't want to see. If it is much smaller, many scholars who can return to China will not come back. Although there are many criticisms such as "Ten Million Plans", we must admit that the quality of these returned scholars is far better than the domestic average. If we really want to reform, I prefer to reform the evaluation criteria. At present, the standards in various places are still too quantitative. Finally, I think that the real solution to the problem of talents not returning to China has never been a question of money. The problem is that many people are afraid to go back to China, even dare not go to academic websites, or even watch TV dramas, watch the blue sky or drink clean water. This kind of thing may not be a big deal to many people, but it will always make you sick.