Thank you, I am in China, just got off the subway. Suddenly I saw that Zhihu released a video "The Answer to Upwards"; I just found out that Zhihu has been around for ten years. Why is there always an announcer cleaning up the clips of the manuscript after the "News Network" ends? What kind of person is Zhang Xiaolong of Tencent? What are the differences in thinking between men and women? What will be the impact of the Notre Dame fire? How do you force yourself to study when you don't want to study? ... "You are the 609,587 users of Zhihu. In the past ten years, you have created 648 content on Zhihu and been viewed 6,642,709 times..." Ten years, really fast, actually a little melancholy. In ten years, some people say that fortunately there is Zhihu; others say that Zhihu has changed. In January 2011, Zhihu went online; at that time, as an invitation-only serious knowledge community, there was an text message service atmosphere of classical professionalism here, and an idealistic geek style flashed from time to time. On October 15 of that year, an internal email from the Zhihu team wrote: We believe that in the sea of ​​Internet information overflowing with garbage, truly valuable information is absolutely scarce. But ten years later, the environment of the entire Internet has long been different, and Zhihu inevitably needs to face such a problem: open the latest version of the interface, the sea of ​​information is blowing, and the content of Zhihu is getting richer and richer; Systematic and organized high-quality information is often hidden in the depths. Zhihu has indeed changed, but it is not only Zhihu that has changed. Ten years later, the ecology of the entire Internet circle has changed beyond recognition.