Ethereum is about to enter a new era. In a message published on X, Vitalik Buterin announces a major technical upheaval: zk-EVMs could become, by 2027, the main block validation mechanism. A profound transformation of the protocol, which would mark one of the most ambitious turning points since the creation of the network. Performance, decentralization, scalability... Buterin claims the trilemma is "solved" in practice. One challenge remains: ensuring security.