Ethereum co-founder Vitalik Buterin proposes a redefinition of Layer 2 (L2) solutions, contending that the original vision of 'rollups as branded shards' no longer suits current Ethereum realities. He notes that while Ethereum Layer 1 (L1) scaling has advanced, L2 decentralization progress remains slower than expected, prompting the need for L2s to focus on differentiation and specialized functionalities. This shift means L2s will now need to demonstrate clear value propositions and guarantees rather than relying solely on Ethereum alignment.

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