An interesting consideration is our critical assumption regarding what is known as the arrow of time and that all anomalous events regarding ghosts come from the past.
Perhaps the iris of the human eye as pictured at the top of this essay that links the parallel universes of external and internal time keeping bears a relationship to what we see as a tunnel through the three dimensional physicality of the visible universe known colloquially as a black hole as the microcosm of the macrocosm.
We all know the old axiom from physics, that no information \ energy is destroyed, it is simply modified. We assume by perception that the arrow of time moves forward but does it also reverse, and if it does, is there a middle ground where a demarcation does not exist between them, rather a state that resembles the spectrum of a continuum? Are some cases of precognition evidence of retro-causation? Information carried from the future into the past which we call the present? What of persistent images that play as a unending spool in ghost visualizations? A woman is seen walking up a staircase over and over by witnesses through the centuries. The disturbance or reorganization of a certain vectoring by the physical rehabilitation of the locality where ghost behaviors occur, is this a case of quantum restructuring that causes the cubing of activity as an effect by the disturbance of the past?