Vitalik Buterin, in his latest article, discusses a new paradigm emerging in Ethereum's frontier research. This approach involves directly coding with EVM bytecode, assembly, or Lean, and verifying correctness through mathematical proofs automatically checked in Lean. AI-assisted formal verification is expected to enhance both code efficiency and security, particularly for critical security modules like STARK, ZK-EVM, quantum-resistant signatures, and consensus algorithms. However, Buterin cautions that formal verification is not infallible, as it may fail due to incomplete proof coverage, specification errors, or hardware side channels. He envisions future software dividing into "security cores" and "non-security edges," with Ethereum poised to become a key security core.