According to Vitalik Buterin, the most effective way to build a Layer 2 (L2) network is to heavily rely on the Layer 1 (L1) for core functionalities such as security, censorship resistance, and data availability. In his view, the L2's logic should be reduced to simply being a sequencer and a prover, or only a prover for 'based' rollups that use the L1 for sequencing. This vision implies that L2s with deeper integration into the L1's security model may be viewed more favorably, a key consideration for traders evaluating the long-term viability and potential valuation of various L2 ecosystem tokens and the core value proposition of Ethereum (ETH) as the ultimate settlement layer.