But in WeChat, apparently it's broken. Compared with the era before the mobile Internet, people's ability to maintain friends has suddenly increased a lot. We used to limit a person to a maximum of 5,000 friends, but now there are nearly one million people who have approached 5,000 friends. Although it is not a true friend, it also prompts us to expand the number of friends. I remember that when people nearby went online, I actually had a vague unease myself, because the boundaries between us and people nearby would be broken, and I don't know if it was good or bad. This kind of thinking will actually run through the evolution of WeChat. It's very easy for us to expand the limit of 5000 friends, but to be honest, we will think over and over again about the impact it will bring. 4. The speed of information dissemination On the one hand, information spreads faster than before. Maybe in an instant, an event can spread rapidly in many groups and in a rapid geometric progression. On the other hand, there is a saying "rumors travel thousands of miles", sensational content may have a greater chance of spreading. It's human nature. It may be difficult for us to use technical means as a criterion for judging the quality of content, but as a platform for information transmission, we also have many ways, such as using more participants and powerful mechanisms to help the platform make arbitration, just like we Treating originality and plagiarism is similar. 5. Difficulties in sms marketing service information selection It seems that we can freely choose which to watch and which not to watch in the face of massive amounts of information, but in fact, we cannot have time to sift through them one by one, so what