Ethereum co-founder recently stated that privacy features will become the next major development direction for the Ethereum ecosystem. This judgment is very interesting——as on-chain activity increases, users' demand for transaction privacy is also continuously rising. Currently, most public chain transactions are open and transparent, which is actually a pain point for institutional users and privacy-conscious participants. Once the privacy layer is improved, it can not only attract more institutional-level participants but also expand Ethereum's scenarios in finance and business applications. From a technical perspective, the maturity of privacy protocols has already seen significant improvement, and the timing for integration into the main chain seems to be approaching. If this trend truly explodes, it could change the competitive landscape of the entire ecosystem.