Consensys founder Joseph Lubin said Ethereum is getting close to achieving synchronous composability, a mechanism that allows a smart contract to call a contract on another chain and receive the result within the same transaction. The solution ensures that transactions either fully succeed or fully revert across multiple chains. Lubin emphasized that scaling utility through shared atomic execution will accelerate transaction volumes and subsequent gas burning.

The proposed architecture relies on zero-knowledge proofs of transactions across different networks, aggregating them into a single proof processed by a synchronizer smart contract on a target layer 1 or layer 2. Lubin said the structure enables tokens to move "automagically" without standard bridges, using native rollup bridges instead. The feature is expected to unify fragmented liquidity, a long-time pain point in Ethereum's multi-chain ecosystem.

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