Vitalik Buterin wrote today that he supports privacy not only as a guarantee of individual freedom, but also as a cornerstone of social order and technological progress. The article points out that decentralization and privacy are inseparable, and current AI and big data greatly enhance the centralized control of personal information risks. Vitalik emphasized that cryptographic technologies such as ZK SNARKs are empowering the protection of identity information and enabling secure data computation. He called for strengthening the open source, universality, and credibility of digital privacy tools to counter potential global data hegemony trends.