At first I thought this was going to be about looping a tractor fed printer's paper back into itself to print double sided.

This is an interesting way to do present something if you are reading it once and don't need it for reference material. Needing to find a specific page only to have topics interleaved might make searching disorienting.

A side note, boxed sets of 78 RPM records used to come like this. At the time, stacking record changers were more common. You would load a stack of records in, play one side of each as they dropped down, remove the entire stack, flip it, and play all of the other sides. 78's didn't hold a lot so this could drastically increase the time between needing to interact with the player.