Intresting article. Could be. Remeber the news article about the tower of London? People reported seeing the Ghosts of King Henry V111 wife. The look of horror on her face, well that's what they saw, the night before her execution.

Another theory to look at is the existence of other dimensions whre the spirit world exists. Maybe without the physical body restraints they can freely travel the space time continum? Perhaps?

IMHO,

The ghosts which we see, are actually personalities or egos of dead people in the astral or 5th dimension.

The ability to see into a higher dimension is called polyvision. It is not common, but can explain the small amount of "real" ghost sightings.

We can travel through time in the astral dimension, as it is above time (the 4th dimension). All thoughts, words, and actions are recorded in what is called "The Akashic Records". By accessing these records in the astral dimension we can go back and forwards in time.

"The Akashic Records".

Have you ever access those records?

I posted on another post about my thoughts to what ghosts and other unnatural entities are. I believe that there isn't a single dimensional layer as we think. Rather a multilevel dimensional existance that we all inhabit. The reason we can see some of these things is that the layers are close and its possible the an entitiy is able to modify its frenquency enought to tread on that. Though the process consumes amounts of their energy as they are now energy constructs, they regain their energy in their native layer or plane. I feel this theory is the most logical one i know of. If anyone cares to comment on this I'm all ears.

-Aza