Dimensional divide
From Jenny Everywhere Wiki
The dimensional divide, or dimensional fabric, was the outer boundary of a given universe or dimension.
Void Ships needed to phase or pierce through the dimensional divide to enter a universe. (COMIC: The Beginner's Guide to Multiversal Theory) Tracker-764's Void Ship, being an outdated model, needed to build up speed before it could pierce through the dimensional fabric, and even then it was not automatic, with an additional command needing to be pressed at exactly the right time. (PROSE: Misadventures in the Interdimensional Black Market)
