Entities on either side of a boundary do not encompass each other, nor do they encompass the boundary. A repetition of the event would be a re-presentation by its author. If we communicate our experience of the phenomenon to another person we present our own experience, a personal account of a personal event. If it cannot be perceived, it must be mind-independent. If mind-independent, minds cannot judge its reality.
Faith establishes reality and truth, including in science.
In our everyday world, I see new structures following prior experience, new experiences following prior structure as left foot follows right, right follows left. New concepts may come up when needed by experience which is not dealt with adequately by the available concepts. In my opinion, the TOE people want to correlate present scientific theories by making new discoveries and analyses. Theories of subjectivity would be a new project. In QM the need is more evident than in some other areas, because the old MIR-view does not work.