You can scale Ethereum by running computations off-chain and submitting batches of zero knowledge proofs on-chain. StarkWare https://starkware.co/ https://stark

You can scale Ethereum by running computations off-chain and submitting batches of zero knowledge proofs on-chain. StarkWare https://starkware.co/ https://starkware.co/ is the leading layer 2 for zk proofs. There are also other platforms that use other zero knowledge techniques to batch computation and sends proofs of that computation on-chain.