ChainCatcher news, Vitalik Buterin wrote today that he supports privacy not only because it is a safeguard of personal freedom, but also because it is the cornerstone of social order and technological progress. The article points out that decentralization and privacy are inseparable, and that current AI and big data have greatly enhanced the risks of centralized control over personal information.Vitalik emphasizes that cryptographic technologies such as ZK-SNARKs are empowering the protection of identity information and enabling secure data computation. He calls for strengthening the open-source, universal, and trustworthy nature of digital privacy tools to combat potential global data hegemony trends.