Timeline Travel

Timeline travel  refers to the act of moving from one timeline to another. Only certain characters are capable of timeline travel.

Spawning
Spawning and despawning is the act of arriving in or departing from the current timeline. While in most cases the traveling individual will favor despawning out of sight of any bystanders, it is possible to witness, in which case the character will appear to rapidly phase out and disappear.

Limbo
Limbo is a dimension independent from all timelines, which travelers temporarily occupy after despawning. They may also remain there indefinitely, or until they wish to leave.

Appearance
Limbo can be thought of as a near-void. No physical objects or matter exist here; all visual phenomena are conceptual. The space occupied by travelers functions as a hub world hosting portals to all timelines. Portals can be marked to indicate previously visited timelines, failed timelines to avoid returning to, among other things.