Students from the elite school Tsinghua University protested with Friedmann equation. I have no idea what this equation means, but it does not matter.
It's the pronunciation: it's similar to "free的man" (free man)—a spectacular and creative way to express, with intelligence. pic.twitter.com/m5zomeTRPF

— Nathan Law 羅冠聰 (@nathanlawkc) November 27, 2022