Rollups Now Enable Synchronous Composability Across Chains Instantly

Realtime proving enables synchronous composability between rollups via Realtime Proving 1, a mechanism that requires posting data and proof simultaneously. This eliminates the incentive design gap in traditional rollup designs. Prover centralization is a concern but the trend is towards faster proofs on cheaper hardware. Synchronous composability allows cross-chain calls with atomic composition across chains.