Today I went to pick up my niece from school and, by chance, overheard her classmates talking about u. I wanted to ask if it was the u I was thinking of, but they said it was US dollars. Don’t you know? It’s something that teenagers in their teens are talking about. I don’t know whether it still counts as a sunrise industry—I only know that they’re all future stars. In any case, the number of people trading cryptocurrencies in China may have already exceeded our imagination, and China will continue to try to find ways to crack down on the industry.