The article discusses Plonky2, a revolutionary recursive SNARK technology by Polygon Zero designed to efficiently scale Ethereum, using zero-knowledge proofs while maintaining security and decentralization. It combines PLONK and FRI systems for fast, cost-effective proof generation, crucial for blockchain scalability and privacy. The article addresses computational costs, proof size optimization, and Ethereum compatibility issues, benefiting developers and blockchain enterprises. Structurally, it covers introduction, recursion, efficiency, proof sizes, and compatibility before concluding on Plonky2's impact. Key benefits include 100x speed improvement and reduced operational costs for Ethereum layer-2 solutions.