3/ two critical things to note about this design:
first, the sequencer is only a fast lane to get into
@base. at any point, a user can also transact on
@base through
@ethereum directly. this brings the full decentralization and censorship resistance of the ethereum validator set to transaction inclusion on base and is the key property that enables L2s to scale ethereum, while preserving the neutral global economy we care about.
second, sequencers do NOT act as "matching services" or engines like those in traditional exchanges. matching engines pair buy and sell orders at specific prices to execute trades. sequencer don't do that—they simply determine the order in which transactions are processed. transaction "matching" or execution happens at the application level, within smart contracts (e.g. a DEX). the sequencer ensures these transactions are executed in a consistent, ordered manner, but it doesn't decide matches or control trade logic. that's up to the code.