Do ghosts exist? That’s a tough question. Many people have told me stories of supernatural encounters with entities they describe as “ghosts”. They were in their home late one night, and they saw the distinct features of a small child at the end of the hall. They rubbed their yes, they shook their head, and the child was still there. A moment later, it vanished.
Are these people crazy? Certainly not. Are these people lying? Certainly not. Then how do we explain what they saw?
Before I begin the discussion proper, I would like to make the following statements:
1. I do not believe that ghosts exist.
2. I am not going to attempt to prove or disprove the existence of ghosts.
Please keep those in mind as I continue.
As I mentioned, I will not attempt to disprove the existence of ghosts. I will, however, attempt to prove that such a question is answerable. Whether or not I currently have the ability or technology at my disposal is irrelevant. Whether or not I would ever actually succeed in such an endeavor is equally irrelevant. All that I wish to convince you, the reader, of is the fact that if ghosts do exist, then that is provable (or disprovable).
To steal a quote from my father, “To measure is to know.” I believe completely in this statement, taken out to the extreme. Everything that is can be measured. If something cannot be measured, then it probably does not exist. It may be the case that we lack the proper tools to measure it, but that does not mean it is not a measurable thing.
To put it another way: Everything in the universe is subject to a rule. If there is an exception to that rule, then we did not understand the rule. There are no exceptions.
Let’s say that someone sees a ghost. Humans see things by catching reflected light (and a specific spectrum of light, no less) with the eye. That is what it is to “see” something. I don’t know the exact science behind it, but this layman’s understanding is all we need. Reflected or refracted (or whatever) light is a measurable phenomena. If a ghost is something that can be seen, then it is something that can be measured. The same system can be applied to “hearing a ghost”. Sound occurs when vibrations travel through a medium (like the atmosphere) and are picked up by our ears. That is a measurable phenomena. These are the definitions of what it is to see or hear something. There is no other way in which humans see or hear things external to them.
If ghosts exist, then they are measurable. There are no exceptions to this. If we cannot currently “measure” a ghost, then simply do not understand ghosts well enough, or lack the proper technology.
It may be the case that ghosts do exist. I am fully willing to admit this possibility. But if they do exist, by any definition of the word, then they are measurable and therefore provable (or disprovable).
Response: Maybe ghosts do not reflect light or cause vibrations, but instead put the sensations into our minds directly. In this manner, they make us see or hear things without causing the external stimulus normally associated with said phenomena.
The brain is a measurable thing. Our ability to understand and measure it are not perfect, not by a long shot. Brain waves are measurable things. If a ghost is affecting the brain in some manner, then that is a measurable thing. Again, if a ghost exists, then it is not an exception to the rules. If a ghost exists, then it is measurable in some manner, whether by sight, sound, brain waves, or some other spectra or energy wave – even if we haven’t discovered that wavelength or spectra yet.