Polygon co-founder Sandeep Nailwal is emphasizing the importance of zero knowledge (ZK) technology in the upgrades for Polygon 2.0. He believes that current optimistic rollups are temporary solutions and that ZK technology is more efficient and scalable. Optimistic rollups rely on “socioeconomic games” while ZK proofs rely on mathematics. Checking for fraud on optimistic rollups is time-consuming and expensive, while ZK proofs can handle millions of chains. Nailwal also mentions that ZK rollups don’t require putting data back on Ethereum. The implementation of ZK technology is crucial for the future of Polygon 2.0.

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