Showing posts with label psi. Show all posts
Showing posts with label psi. Show all posts

Sunday, 2 February 2025

Why we apparently believe in the paranormal

Popular skeptical articles on the paranormal typically focus on how prone most of us are to believe in the paranormal, or, as many skeptics prefer to label it, the "supernatural". Here's one such article:

Six ways our brains are primed to believe in the paranormal

It seems clear to me that these articles attempt to persuade the reader that nothing we label the paranormal exists, and this article is no exception. I do acknowledge the force of many of the points made though. So, I'm in complete agreement that most people have a predilection to believe in the paranormal. I agree that we are very easily fooled. I agree that our perceptions and memories can be unreliable. I agree that we have a propensity to prefer more exciting explanations to mundane ones. I also grant that our minds are susceptible to suggestion—hence it is not too surprising that someone might agree that a metal key on a table is bending if someone else suggests that it is.

The article also points out that what we perceive can be influenced by implicit expectations derived from our background experience of the world. Indeed, perceptual illusions illustrate that what we actually perceive is very much influenced by our prior beliefs and especially by what we are used to seeing. Hence what we perceive is moulded and shaped by an internal model of the world we implicitly hold. It should be noted, though, that this doesn't appear to help the skeptical case since, if anything, this serves to filter out, or alter, our potential perception of anything unusual. I once read about an experiment that tested people's susceptibility to prior beliefs and the effect this has on their perceptions. It transpired that many of the paranormal skeptics were adamant that an object was not moving when it was in fact being slowly covertly moved. This response didn't seem to be merely a result of their psychological rigidity; rather their perceptions were quite literally shaped by their expectations. This underscores how our perceptual processes seem to favour us perceiving that which is usual and normal, even when what is actually out there may be unusual in some manner (see a blog post by me for another example). So, the processes by which we come to perceive the world — and our consequent mistaken perceptions — may not be as compelling for the skeptical case as skeptics naively suppose.

I acknowledge then that there is a great variety of ways in which we can be fooled. But here's the crucial question. How does this show or imply that no "supernatural" phenomenon exists? For clearly the author is insinuating that it is rational to conclude none of them do exist. Indeed she—and many other skeptics— even employ the word "rational" to label those explanations that align with our modern understanding of how reality works. In other words, she and others presuppose it is rational to hold that some type of materialism is correct, which in turn therefore strongly suggests no paranormal phenomena exists.

Of course, what is being implicitly implied in such articles is that the only reason why we believe in any paranormal phenomena is due to our aforementioned propensity to believe. Yet, to state the obvious, experiences of the anomalous or unusual is not merely confined to people excitedly assigning some unknown noise to a restless spirit, or worse still, seeing images of Jesus on a slice of toast or other trivial silly claims. What is vastly more interesting, for example, is when a person sees someone up close, perhaps right in front of them, that looks like a normal person, but which subsequently transpires to have been an apparition. For example, crisis apparitions where the person of the apparition seen is undergoing some type of crisis, quite often death. And such encounters are often reported by less excitable, more sober-minded and credible individuals who can be relied upon far more in their reports. Notwithstanding our psychological proclivity to believe and the myriad ways we can be fooled, it is difficult to dismiss the numerous independent reports of this type of phenomenon, and other phenomena of a similar nature.

What we see is the usual tiresome tactic by skeptics of placing all anomalous experiences into the same basket, then ridiculing the most silly and frivolous of such alleged experiences, insinuating in the process that such ridicule is deserving of the entirety of the so-called paranormal.

The bottom line is that people don't just believe in many of such alleged anomalous phenomena due to any psychological propensity. Many people also believe due to the evidence and reason. In other words, it seems the rational thing to believe.

It's also worth pointing out that our modern western culture is pretty much unique in rejecting the entirety of the paranormal. Are we to believe that other cultures psychological propensity to believe is the decisive factor that determines their beliefs here? That the evidence and reasons for them to subscribe to such beliefs is slim to non-existent? That our modern western world has figured out all the answers to any questions about reality and any other conclusions are irrational?

The problem with articles such as this is that there is no attempt to provide any type of objective level-headed assessment of the evidence for such phenomena and why more thoughtful people might believe in at least the phenomena that is more difficult to explain away. This, and so many other skeptical articles of a similar nature, are all about persuading. Trying to persuade people that any belief in any of the paranormal is irrational. 

For those interested, I address a different type of critique of the paranormal in the following link: Skeptical Inquirer attempts to explain why psi could not possibly exist

Tuesday, 27 October 2020

What do people mean when they say there's no evidence?

It's interesting that people on the web constantly say "there's no evidence for an afterlife", or "there's no evidence for psi". For this seems to be straightforwardly false. Take reincarnation. There's research into alleged past lives of young children that appears to show that they are getting accurate information about a person that had previously lived. Or take psi. Parapsychologists have provided plenty of evidence for it. 

Obviously, most of these people are presumably just repeating each other. But what justification could be given for the origin of this claim that there's no evidence for such things?

Consider the case where someone declares that we have evidence that beds are dangerous as people disproportionately die in them compared to elsewhere. Would this be evidence that beds are dangerous, even if only very weak evidence?

It depends on what people mean by "evidence". I would say yes, but I think most science educated people would say no. One reason why they would say no is because we already have a good explanation for why people die in beds -- namely because they go to bed when they are ill. But, another more compelling reason, is that it seems there's no conceivable mechanism whereby beds in and of themselves could somehow play a causal role in precipitating death.

Let's, for the sake of argument, accept for the moment these peoples' conception of "evidence" as requiring a possible mechanism.  
Now, consider reincarnation. Even though young children appear to recollect previous lives, people assert there's no conceivable causal mechanism whereby consciousness can depart from a person who has died, to then appear in a fetus or new born baby. Hence, until someone proposes a possible mechanism, there can be no scientific evidence for reincarnation. Same applies more generally to an afterlife, or to psi.

There's a deep problem here though. There appears to be an implicit assumption that our everyday embodied consciousness being produced by brains is entirely unproblematic and hence that there will be a mechanism whereby this is achieved even though we have yet to discover it. Or, even if it's not entirely unproblematic, we can be confident that brains do somehow produce consciousness because of all the ways that brains affect our mind-states -- especially when we consider such debilitating conditions as dementia.

I would maintain, though, that the mind-brain correlations that supposedly prove that brains produce minds, appears to be no more persuasive than eyeglasses- acuity of vision correlations prove that eyeglasses produce vision. In the case of the eyeglasses, there clearly is no conceivable mechanism. And we know that vision already exists, it is merely changed by the eyeglasses. However, it seems to me, brains are in the same boat. There is nothing about the ultimate particles that brains are made of that could possibly produce our phenomenological experiences. So, similar to eyeglasses-vision, perhaps consciousness already exists with brains merely changing it.

But, regardless of whether I am right or wrong about the brain somehow producing consciousness, it seems to me we don’t have any conceivable mechanism for how the brain does this. Hence, if despite the correlations we have no evidence that beds precipitate death, then likewise, despite the mind-brain correlations, and since we lack a conceivable mechanism, we also have no evidence that brains produce consciousness. So even if – contrary to my position – the thesis that brains produce consciousness is at least conceivable (unlike eyeglasses producing vision), we have no evidence that brains actually do so (least of all do we have proof).

Indeed, we have a more plausible scenario; namely consciousness exists all along with brains merely changing it i.e. consciousness is fundamental. And if that should be the case, then consciousness can exist independently of brains just as vision exists independently of eyeglasses.  If this is so then the demand for a mechanism is misplaced.  Indeed, demanding a possible mechanism appears to presuppose that consciousness is material and hence is question-begging.

Now let’s consider psi. Even if the notion of the brain producing consciousness is unproblematic, the fact still remains we have no causal mechanism for how it is produced. But psi, if it exists, will be an ability or property of consciousness. If we lack a causal mechanism for the very existence of consciousness, how on earth can we expect anyone to produce a causal mechanism for psi? Further, if I am correct and consciousness is not produced by the brain, how can we a priori declare what properties consciousness must have?

When people say psi is impossible due to no possible causal mechanism, they have in mind that physics pretty much describes the entirety of reality and it doesn’t allow for psi. But physics leaves out consciousness in its description of reality; indeed it suggests consciousness shouldn’t exist. If it suggests this, it is scarcely likely to suggest a property of consciousness like psi should exist, or even free will or a causal role for consciousness.

Monday, 12 August 2019

Skeptical Inquirer attempts to explain why psi could not possibly exist.

Introduction:


I read the following article:

Why Parapsychological Claims Cannot Be True

It says:
The entire field [of parapsychology] is bankrupt—and has been from the beginning. Each and every claim made by psi researchers violates fundamental principles of science and, hence, can have no ontological status. 
We did not examine the data for psi, to the consternation of the parapsychologist who was one of the reviewers. Our reason was simple: the data are irrelevant. We used a classic rhetorical device, adynaton, a form of hyperbole so extreme that it is, in effect, impossible. Ours was “pigs cannot fly”—hence data that show they can are the result of flawed methodology, weak controls, inappropriate data analysis, or fraud.

This is pivotal to the impasse between parapsychologists on the one hand, and paranormal skeptics on the other. The latter regard psi as simply being impossible as they regard it as contravening what science has told us about the world. Hence, no matter how compelling the evidence for psi is, it cannot be what it seems.

But how exactly does psi violate science? They go on to say:

We identified four fundamental principles of science that psi effects, were they true, would violate: causality, time’s arrow, thermodynamics, and the inverse square law.

Okay, so let's see what they have to say about each of these.


Causality:


They say:
Effects have causes. Bridging principles identify the causal links for observed effects. The appropriate response to circumstances that lack such a mechanism is skepticism or an existential agnosticism—and, historically, this has been the case. Newton’s notion of gravity as “action at a distance” was considered suspect until rescued by Einstein’s relativity theory.
 ...

Within the study of psi, there are no causal mechanisms, and none have been hypothesized.

There are all sorts of issues here. But the most crucial one is that there is also no mechanism for the production of the very existence of consciousness itself, nor how it is able to affect the body in the case of our voluntary behaviour. Our current physics, dealing as it does only with the measurable aspects of reality, necessarily wholly leaves out consciousness in its description of reality. Indeed, given the immaterial nature of consciousness, no tinkering with current laws can be fruitful in this regard. This is why we have what has been labeled the mind-body problem, a problem that has been particularly acute since the birth of modern science in the 17th Century. We require a radically new theory that doesn't just deal with the measurable aspects of reality but has consciousness at its core.

The important point to make here is that if we have no mechanism or explanation for why consciousness exists, then, of course, we could not expect to be able to discern any mechanism for any possible abilities of consciousness, such as psi. However, if such a mechanism or explanation were to be found, it may be that we will come to understand that psi is brought about as a consequence of that very same mechanism or explanation.

My own view is that I regard it very likely that consciousness is fundamental in the same way that the elementary constituents of reality are (electrons and quarks? superstrings?). We normally explain the existence of something by reference to the parts it is composed of. But, what of the ultimate constituents of reality? Such things simply exist as a brute fact with the properties they possess existing as a brute fact too. So, if consciousness is fundamental, then psi might be such a property, as indeed might the causal power of consciousness initiating our voluntary behaviour. No mechanism for psi is then required, although of course we still do require a scientific theory that incorporates such a fundamental consciousness.

Regardless, the bottom line is that it is only if we have a scientific theory at our disposal that incorporates consciousness could we hope to infer what properties and causal powers it has. Hence, once we have such a theory we will be in a better position to stipulate whether we can expect consciousness to exhibit psi abilities and whether such psi abilities require a mechanism. But, at the present time, we lack any such theory.

I should point out that my response here has no relevance should modern materialism be true since it holds that consciousness is identical to some physical processes, or at least what those processes do. In which case we already know how consciousness is produced. In particular, it is tied to specific brains and arguably, if psi is to exist, we then have a problem in that we need some method of communication between brains. Possible mechanisms to explain such communication would seem to be thin to non-existent.

There are 2 points I should immediately make here:

  1. To presuppose modern materialism is largely question-begging.
  2. Modern materialism is incoherent.  See a blog post by me.

Largely question begging since most of those who accept the existence of psi will reject modern materialism, and indeed any form of materialism.

But, even if modern materialism were correct, I question whether we necessarily need to propose theoretical mechanisms, that is mechanisms that are not directly observable. They mention Newton's law of gravity and that the concept of a gravitational force was suspect. Then Einstein came along and replaced it with the more satisfactory idea of warped space-time. The idea here is that influences have to be contiguous. Gravitational force fails to fulfill this criterion since it acts at a distance. Warped space-time, in contrast, allegedly does fulfill this criterion. My own position is that the job of physics is merely to map, predict, and manipulate our environment via mathematical models -- a position which Newton himself subscribed to. Proposing that reality exhibits patterns as circumscribed by invisible mechanisms seems to me to completely ignore the underdetermination of scientific theories by data thesis. I briefly talk about this here. More generally, I think they're confusing metaphysics with science (although, to be fair, most scientists are just as guilty). For an elaboration of my views on this topic go here. Finally, I should mention that the phenomenon of entanglement pays scant regard to this demand for a mechanism.

Inverse Square Law:


Related to this issue over a mechanism the article states:

In telepathy, the distance between the two linked persons is never reported to be a factor, a claim that violates the principle that signal strength falls off with the square of the distance traveled.

Should modern materialism be correct this objection has more force than the demand for a mechanism. But what if one rejects materialism? Personally, I do not buy into this idea that each of our streams of consciousness are isolated, that is confined to our individual brains. I think that although our essences are individual selves, we also to a degree partake in a universal consciousness. Telepathy is not then a signal passing from one stream of consciousness to another, nor is there any transference of energy, that is simply an entirely wrong way of looking at it. Rather the ability to sense others feelings, thoughts and so on is innate since our separateness is not as absolute as we might suppose. Indeed, I suspect that communication via telepathy might be the natural state of affairs in an afterlife realm or realms. However, whilst we're embodied, the brain serves to inhibit or diminish such abilities.

Thermodynamics:


They claim that psi, at least in the form of precognition, would violate the conservation of energy. They say:

 Again, take precognition. If the future affected the present, it would violate the thermodynamic principle that energy cannot be created or destroyed in an isolated system. The act of choosing a card from a fixed array, a common procedure used in psi research, involves neurological processes that use measurable biomechanical energy. The choice is presumed to be caused by a future that, having no existential reality, lacks energy.

This is all terribly confused. Are they, for the sake of argument, supposing that the future exists or not? They initially appear to assume that it does, but then contradict this by saying it has no existential reality. If the future does exist (implying we exist in a block Universe), then it's not true that the future lacks energy. If the future doesn't exist, implying the past doesn't either, then neither the future or past have energy. But our memories influence present actions without violating energy conservation, so what is problematic for future "memories" doing likewise? In the final analysis, this objection seems to collapse into the time's arrow objection that we will now address.


Time's Arrow:


They say:

Within parapsychology time is turned upon itself, most glaringly in precognition.

Here they are thinking precognition would only work by the future actually existing and causally influencing the past. But, despite some parapsychologists favouring this notion, why assume this? Perhaps only the present exists. In which case, there isn't a future that is causally influencing the present. Instead, precognition might simply be an implicit awareness, similar to telepathy, of how present events will play out should no preventative action be taken. If this strains one's credulity I suggest it's because they have bought into the mechanistic conception of reality. But, as I previously intimated, we are in no position to dictate to reality how it can or cannot behave; specifically, we are in no position to demand that it must exhibit patterns as circumscribed by invisible mechanisms. We must rely on what our experiences tell us.

If psi effects were real


The authors say:

[I]f psi effects were real, they would have already fatally disrupted the rest of the body of science. If one’s wishes and hopes were having a psychokinetic impact on the world—including computers and lab equipment—scientists’ findings would be routinely biased by their hopes and beliefs. Results would differ from lab to lab whenever scientists had different aims. The upshot would be empirical chaos, not the (reasonably) ordered coherent picture developed over the past several centuries.

This implies that scientists' findings are not biased by their hopes and beliefs, and indeed what will be financially lucrative. Is there any good evidence that this is the case? I feel also that they are overstating the effects of psi. I've had a few psi experiences in my life, mostly in my childhood, but I haven't experienced anything that I would judge to be psi for a fair few years. Why do they think that if it exists it has to be operating all the time regardless of one's psychological states? And even if it is omnipresent, why can't the effects be very slight? Or why can't various psychokinetic effects from differing people cancel each other out? If I'm in a casino mightn't any very marginal psychokinetic effect from me wanting a certain outcome be cancelled by other people wanting other outcomes?

It's either science or psi?


They also say:
[P]arapsychology cannot be true unless the rest of science isn’t.
So, psi cannot exist otherwise we wouldn't be able to get to the moon? We wouldn't be able to make smartphones? We wouldn't expect objects near the earth's surface to fall at an acceleration of around 10 m/s^2? This is clearly preposterous.

There's this persistent misunderstanding -- and one that the authors, Arthur S. Reber and James E. Alcock seem to share -- that scientific theories describe reality both with complete precision and in their totality. So if there's some aspect of reality a theory fails to describe -- namely some phenomena that contravenes what we should expect from the theory -- then that theory is simply not correct and hence it cannot adequately describe any aspect of reality. But that's not what we learn from the history of science. The history of science teaches us that our old scientific theories are often perfectly adequate to describe a given domain, but break down when attempting to describe that which resides outside that domain. Also, it teaches us that our theories give approximations only even if those approximations might be very close. Thus, the science prior to relativity and quantum mechanics is, in a sense, "wrong", however, that does nothing to prevent the Newtonian mechanical description of reality being able to be used to get us to the moon and back. In addition, the classical mechanics espoused before the advent of Quantum Mechanics is perfectly adequate to describe the macroscopic realm even though it might be "wrong". Quantum Mechanics is only needed when we describe the microscopic realm.


It seems that our present science describes reality where consciousness is not involved to a very close approximation, just as classical mechanics describes the macroscopic realm to a very close approximation. But that it breaks downs when it comes to consciousness, just as classical mechanics breaks down with the physics of the very small. So we need a new physical theory that incorporates consciousness. Once we have such a theory we might be able to judge from the consequences of such a theory whether consciousness requires a body, whether it is causally efficacious, whether it has psi abilities. But, until then, we can only go on the evidence. And the evidence very firmly says psi does exist, not just the evidence from parapsychological research, but also the collective experience of humankind throughout history and across virtually all cultures.

Friday, 11 December 2015

The changing meaning of the word skepticism.

Modern skeptics of the paranormal often appeal to a quote made by the late Carl Sagan that  “extraordinary claims require extraordinary evidence". However, I believe that originally to be a sceptic (I'll spell with a "c" for the original sense and a "k" for the modern sense), was to not simply accept the prevailing beliefs of one's culture, but to question them to see if these beliefs stand up to scrutiny. Crucially, no particular stance was taken. The prevailing beliefs may or may not be true, but the sceptic avoided simply assuming that they are true, and indeed avoided simply assuming they are false. What they attempted to do was apply reason and evidence and reach tentative, provisional conclusions in that way.

In contrast, skepticism in the sense in which it tends to now be currently used, at least as regards the "paranormal", has a supposition that modern science together with its implicit metaphysical assumptions, has successfully broadly painted a picture of what reality is like.  Lots of the details need to be filled in for sure, but in its broad outline skeptics assume it is essentially correct.  And, in general, the background beliefs of the intelligentsia regarding reality are shaped by the message that modern science seems to convey.

Now of course there are certain phenomena which are not consonant with such background beliefs and the conception of reality they entail e.g. apparitions, telepathy, the notion of an afterlife and so on.  Hence, when people claim to experience such things, the supposition of the skeptic is to assume that explanations consistent with the prevailing beliefs of one's culture are sufficient to explain the phenomenon concerned.  This is so even if such normal conventional explanations might be highly convoluted and implausible.  This is because no matter how implausible such conventional explanations might be, they do not rival the implausibility of accepting any paranormal phenomena -- or so skeptics maintain.  Any explanations not consistent with their beliefs are deemed to be controversial and extraordinary.  In order to accept a given anomalous phenomenon for what it seems to be, the evidence, to use Sagan's words, would need to be "extraordinary". 

So, in a nutshell, a skeptic assumes prevailing beliefs held by the intelligentsia are correct, and consequently he or she has a propensity to dismiss out of hand alleged phenomena inconsistent with such prevailing beliefs.  To describe modern skeptics as deniers is perhaps too strong.   But it certainly seems to me that modern skepticism is in many ways quite the opposite of the original meaning of the word scepticism.

Of course, a skeptic could argue that we are justified in subscribing to those beliefs informed by modern science.  He could also argue that the results obtained in parapsychology fall far short of the reliability of the results obtained in physics (as in the case of all "soft" sciences, including psychology and sociology). 

Two points should be made:

First of all, this doesn't justify the hijacking of the word "skepticism" to label this approach.

But secondly, and much more importantly, there is a stubborn misconception regarding what science actually does.   It tends to be conflated with a particular metaphysical interpretation of reality, an interpretation which itself cannot be justified.  More importantly, unless we presuppose materialism -- a metaphysical position which seems to me to be simply untenable -- science leaves out the existence of consciousness in its description of reality.  This includes our normal perceptions from our 5 main senses. Yes, we can describe the neural correlates of a conscious experience, such as a visual perception. But, even in principle, we cannot derive the experience itself, even from a thorough scientific understanding of the brain.  So, if normal perceptions are in principle inexplicable, how on earth can we claim that extrasensory perceptions are ruled out by science?   I suggest only by assuming philosophical materialism.  And materialism, apart from its unintelligibility, is not derived from science, but is a certain metaphysical stance.

Other blog entries by me might be of interest in this regard:

Science, the Afterlife, and the Intelligentsia
Science, the Afterlife, and the Intelligentsia
Do scientific explanations actually explain?
Science and the Afterlife
A very brief introduction to subjective idealism
 

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