Rollups seem easy to understand at first. You do things outside of the chain only put the important stuff on the chain save room and keep everything running quickly. For a while everything works fine. Things get done faster numbers get bigger. The whole system feels like magic. There is something going on under the surface that people often do not notice. Rollups need data to work. The groups of transactions the proofs and the information that is used to figure out their state. Rollups really need this data from the batches and the proofs and the inputs that are used to make their state. If we do not have that information everything moves slowly users of the system cannot exit validators cannot. The rollup becomes something that we have to trust without knowing what is going on. We cannot just make guesses and expect the network to work properly the network needs to be available all the time. The Write Ahead Log or WAL, for short is what makes this availability possible. The WAL keeps the pieces of data sends them to nodes and makes sure that we can still see what happened a long time after it is done. This means that after a long time we can still check the rollups to make sure they are correct which is important when there are disagreements or when we need to rebuild the system. The rollup remains something that we can verify the rollup stays accurate. This is all because of the WAL. WAL doesn’t compete for attention or speed; it simply ensures that the past is always accessible. Trust in a rollup depends not on how fast it runs, but on whether its history can be checked. By keeping data alive and consistent, WAL quietly transforms working systems into trustworthy ones, preventing subtle failures before they grow into critical problems

$WAL #walrus @Walrus 🦭/acc