Let us be clear about one thing: the existence of anything supernatural or paranormal (including alien visitation and abduction, not to mention magic medicine like homeopathy) has not been proven. For such claims to be true, there would have to be something fundamentally wrong with everything that science has discovered about the world around us and across the whole universe. The laws of nature are pretty well understood, and for the usual claims of the paranormalists to be valid, they would have to demonstrate how their claims do not contravene those laws, or at the very least they would have to show that they have discovered some hitherto unknown law or laws of physics.
It is claimed that telepathy, for instance, is real, but there is no testable hypothesis suggested, and there is certainly no theory (in the scientific sense) that explains how information can be transmitted directly from one person’s brain (or consciousness) to another. The proponents of such claims sometimes talk in terms of a mysterious energy that is undetectable to science (which just happens to be very good at detecting and measuring energy), but which is somehow just transmitted and received by certain rare people who also cannot explain it in any sensible way that could lead to objective confirmation.
Parapsychologists, of course, claim they have the proof, but when their claims are tested by others they just don’t work. At least they usually seem to be following scientific protocols, but replication is the acid test for any scientific claim; so far, however, no one else can get the same results, so the paranormal is not taken seriously by science. That’s the way it is.
Quite honestly, however, I would not be bothered by science rejecting, say, dowsing, if those dowsers could actually do what they claim they do in the real world. If a dowser could clear minefield after minefield, I would be convinced, never mind what those “closed-minded” scientists say. My own hypothesis, however, is that the number of dowsers it would take to clear a minefield is exactly equal to the number of mines in any minefield. (That hypothesis is testable, so it is a scientific hypothesis. As a proposed experiment it would not pass any ethics committee, of course, but my other hypothesis is that no dowser would volunteer anyway, so it’s a moot point – unless any dowsers want to travel to any of the many war zones in the world to prove me and science wrong.)
Things get murky, however, because there are a lot of enthusiastic but scientifically illiterate paranormal “experts” who go on various “ghost hunts” and “vigils” and so on, promoting absolute nonsense in lieu of rationality. To put it bluntly, they have no idea what they are talking about. They go on about “energy” but flounder about when asked what, exactly, they mean. Over a year ago, I listened to a local radio station broadcast where a group of ghost hunters were interviewed by an equally credulous presenter. One of the interviewees, a local beauty therapist by trade, “explained” that when someone dies, their energy can’t dissipate. It’s electricity, she said, although she didn’t mention Ohm’s Law, or the relationship between voltage, current and resistance in a circuit, nor did she give any of the basic mathematical relationships between those concepts that would explain why the well-established laws of thermodynamics are invalid within her interpretation of reality. Michael Faraday, et al, did not rate even a mention. I can only assume that she is qualified in her chosen career, and that when her clients leave her beauty salon they are (at least in a statistically significant way) less ugly than when they entered. But I think she should stick with make-up rather than making it up.
In short, parapsychologists are doing it wrong, ghost hunters are doing it wrong; psychics, dowsers and all the rest of them are doing it wrong. If they could get it right, there would be no dispute. So, as an aid for those self-styled experts in the paranormal, and as a public service, I present the Bad Thinking Guide For Paranormal Investigators:
Feel free to use the above illustration for educational purposes.