Light Bubbles

Light bubbles are a didactic scheme used by theors to picture how knowledge and cause‑and‑effect propagate across space and time. A bubble sketches the region that can influence, or be influenced by, a given event, assuming a finite speed for signals. Arrows within and between bubbles mark allowed causal paths, making it easier to reason about who can know what, when, and from where.

In current discourse they are invoked alongside Protist diagrams and related metatheory. Expositions attributed to Fraa Clathrand point out that certain directed‑acyclic diagrams used in metatheorics are isomorphic to ordinary causal structure in spacetime: information moves one way along the arrows and never loops. In that reading, givens about the cnoöns reach minds as if from the past—affecting us in the present—while nothing we do now can alter those givens. Light‑bubble drawings serve as an accessible way to picture that one‑way flow, whether one frames it in Simple or Complex Protism and whether or not one appeals to the Hylaean Theoric World.

As a practical tool, light bubbles are used in tutorials and messals to keep track of how news and proofs can spread across Arbre. During the ongoing Convox, they are revisited to structure discussions about the reach of signals and the limits of causal contact. In everyday teaching, an avout may gloss them simply as diagrams showing how information—cause‑and‑effect—moves across space and time.