Many people are asking a question: Do ordinary people really have the opportunity to cross class barriers? If we only look at reality, most people's answers may be pessimistic. Because in modern society, the solidification of classes is indeed becoming more and more obvious: resources, education, connections, and capital are often concentrated in the hands of a few. Many people spend their whole lives striving, but in the end, they find that their efforts have not changed their fate. Why? Because most people are only doing one thing: working hard in the original track. And those who truly achieve class leaps often do another thing: they change tracks! And it has to be a high-growth track!