An operating system has a file system which supports writing data to a file in a logical loop of clusters of storage locations.

This is possible without «time travel», if the final state validates the whole logical loop on which depends the existence of the universe.

Obviously the system has a logical loop failure, either that, or someone wants this country to eat itself.

Then we saw in chapter IV-6 that this paradox resolution could also feature a logical loop including the whole history of the universe.