Glossary
Force Inclusion
A rollup mechanism that lets a user bypass a censoring sequencer by submitting a transaction directly to L1, which forces it into the L2 chain after a delay.
When a rollup's sequencer is the only party ordering transactions, it can in principle censor a user by simply never including their transaction. Force inclusion is the escape valve: the rollup's L1 contracts expose a queue where anyone can post a transaction directly, and after a fixed delay the L2 must process it or its state root becomes invalid.
This turns censorship from a permanent block into a bounded delay, and it underpins the credible-neutrality claims of optimistic and ZK rollups alike. The delay — often several hours to a day — is the price users pay to route around a misbehaving or offline sequencer.