The pattern is enlarged, and the future of Layer 2 is not limited to Rollup!

While everyone is debating the "DA legitimacy" of Ethereum, @VitalikButerin stood up and put forward a thought-provoking point of view: the definition of Layer 2 is no longer limited to Rollup!

In the current discussion, Layer 2 is easily associated directly with Rollup, but Vitalik's remarks reveal the vast possibilities of Layer 2, which is far beyond the scope of Rollup. He pointed out that Ethereum’s expansion plan covers a variety of options, such as Plasma, Rollup, Validium, etc., each of which strikes a balance between security, decentralization and scalability.

Vitalik believes that the definition of Layer 2 is too narrow and proposes the division of Strong L2 and Light L2. In this way, the development of Layer 2 will no longer be subject to Rollup, and other expansion solutions such as Plasma and Validium can also receive more attention in the public eye. .

So, why not just keep Layer 2 in the realm of Rollup? Vitalik gave an explanation, highlighting the better security of Validium compared to some Rollups that use multi-signature governance. He also pointed out that Rollup’s strict solution can ensure the availability and integrity of data on the chain. Compared with Validium’s approach that relies on off-chain security mechanisms, security is more direct and pure.

Finally, Vitalik emphasized a key point: Rollups are not the same as Layer 2. He mentioned that there are also opportunities in directions such as Plasma and Validium, and urged that Layer 2 should not be limited to Rollup, otherwise the definition of Layer 2 should be revoked.

Vitalik's statement was seen as a wise move. In order to prevent Ethereum from falling into over-reliance on Rollup, he deliberately opened up the concept of Layer 2 to provide developers with more choices. In the Lego building of Ethereum, Vitalik's forward thinking has always been a strong pillar!

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