Ethereum co-founder Vitalik Buterin has expressed concerns about the current state of the Layer 2 ecosystem, which he describes as fragmented with isolated solutions operating independently. According to NS3. AI, Buterin envisions a new phase that emphasizes rectification and unification, aiming for 'native rollups' that are more closely integrated with the Ethereum mainnet. This proposed shift seeks to address inefficiencies and enhance scalability by promoting stronger synergy among Layer 2 protocols