The world has now entered an era in which “a single sentence can affect many people.” This is not because this person’s abilities have suddenly grown stronger, but because the media has moved from centralization into the era of self-media: any individual whose expression happens to represent the emotions, positions, and imaginings of enough people can quickly generate resonance and be further amplified by algorithms. As a result, an ordinary person may gain, in an extremely short period, the power of dissemination that in the past belonged only to media organizations. The problem is that while the power to disseminate has become democratized, fact-checking, a sense of responsibility, and the ability to judge have not become democratized at the same pace. So what is truly dangerous today is not merely that someone may say something wrong, but that once an unverified narrative becomes a collective stance, it may form a conclusion before the facts do—and even directly alter another person’s real-life fate.