Ethereum (ETH) founder Vitalik Buterin proposed a new concept called 'Keyed Nonces' to improve Ethereum's scalability and privacy. He explained via Farcaster that "by utilizing separate storage structures for specific purposes, we can reduce network burden while maintaining decentralization. He emphasized that this can efficiently handle large-scale data issues arising from privacy transactions. Through this, Ethereum will be able to effectively achieve a balance between scalability and decentralization."