This is kinda random but because were talking about perpendicularities i'll post it here. So the Radiants could draw upon magnitudes of investiture through surgebinding, if you had enough Radiants surgebinding would they create a perpendicularity? and is the voidbringers were cast into damnation which I think is braize or ashyn, the Radiants would make a massive perpendicularity making it so the voidbringers could jump worlds and cause a desolation, and that is why the radiants broke their oaths.
-sorry if this is not organized i am really tired.