Speed began as a decision to specialize, not a larger block
MegaETH’s first public research framed latency as the missing property of EVM chains. Instead of asking every node to order, execute and verify the same work, it assigned different jobs to sequencers, replicas, full nodes and provers. Only one sequencer would be active in normal operation. That removed consensus overhead from the immediate transaction path and concentrated block production in one high-performance machine.
The bargain was explicit. Replica nodes could remain light because they applied streamed state differences rather than re-executing every transaction; full nodes and provers retained heavier validation roles. MegaETH was not claiming that block production itself was decentralized. It was betting that Ethereum settlement, external data availability and separate validation could contain the trust cost of making execution feel like a server.
