Yes Fan refers to Van Duckholm, one of the three giants of philosophy, which was once popular. The philosophy here is not traditional philosophy, but gay movies. The philosophy of "Bi Li" originally came from Station N, and all the videos used pornographic covers to attract viewers. When the audience watched the video, they found two men in it. With more and more of these videos, people watching these videos are thinking about who I am, why I clicked in, and what I clicked in for. This is very similar to the philosophical three questions, so this kind of gay video is called philosophy.