Is it possible to ‘roll-up’ the Rollups?
OR (Optimistic Rollup) and ZKR (ZK Rollup) are great. But I'm curious, Is it possible to build a ZKR on an OR? E.g. Polygon builds another zk rollup on Arbitrum How about building an 'L3' on L2 to get 10,000x fee reduction? Or build an L4 and get 1 million fee reduction?? Or build an…
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