Vitalik: The transaction scope between Ethereum L1 and L2 needs to be clearly defined to avoid extremes of "all on L2" or "all on L1."

ChainCatcher news, Ethereum founder Vitalik Buterin responded to the question of whether "rollups are overall good for Ethereum or are they leeches, and whether ETH really needs these L2s." He stated that Ethereum currently adopts a hybrid L1 + L2 scaling solution, but it is still necessary to clearly define the transaction scope of both L1 and L2 layers.

Vitalik indicated that moving all transactions to L2 could weaken ETH's position as a medium of exchange and a store of value, and cross-L2 operations would still rely on L1. At the same time, keeping all transactions on L1 is also not feasible, as it could lead to centralization and fail to meet the ever-growing demand for on-chain transactions. It is essential to find an appropriate balance between these two extremes to provide users with the optimal solution.