What is the social problem that you find most incomprehensible now?

The biggest problem is that the gap between the rich and the poor is too large, in layman's terms, that is, there is money in how hard you can't change, there are some things that you can't afford to buy by birth, and can't afford it in this life. If you come from the bottom you will be very difficult to salty, this and a person's ability is big or not you do not work hard, not much to do with.