China will be the first country in the world to collectively give up phones: ignoring unfamiliar numbers, not answering landlines, not answering out-of-town numbers, and not answering local unfamiliar numbers; not only not answering, but also conveniently marking them as spam calls. On the surface, this is a tacit folk agreement formed by hundreds of millions of people; essentially, it is the overextension of social credit for phones under the tolerance and assistance of the system. In the past, a phone meant "someone is looking for you"; now, a phone primarily signifies "possibly sales, scams, collections, harassment, or trouble." When a communication tool no longer defaults to trust but instead triggers defense, it is no longer just a technical issue but a window into changes in the social trust structure.