There are two major contradictions in Layer2 at present: one is that the centralized operation of the sorter leads to the outflow of revenue (for example, Base transferring 90% of its revenue to Coinbase may trigger selling pressure); the other is that the value capture of L2 tokens (such as OP/ARB) competes with ETH. Vitalik called on L2 to feed back to the ETH ecosystem through a fee-sharing mechanism. If this proposal is implemented, it can alleviate the problem of value leakage. In addition, the reduction in L2 transaction costs after the Cancun upgrade may attract more users of competing chains such as Solana to migrate, forming a long-term positive.