Its not unjuestified spectualtion but based on interpretations of QM. You do realise that some of the interpretations propose the observer and consciousness influences reality.
Thats because you cannot see the forrest through the trees when you claim that the scientific aapproach in the only wayto determine reality. The science method is only one way and not exclusively the only way we can know reality.
So when you insist on bringing everything back to science, to methodological naturalism you are not just talking about science. You are actually making and espistemic claim about how we should understand reality an and ontological claim about what reality is ie enclosed within the physical and all other ideas are ruled out as Woo. But that is more than a science claim and more a belief position.
But as I mentioned 'behaviour' tells us nothing about the nature of reality. It tells us about the functioning of the mind but the functioning of the mind, the neuron and electical activity does not tell us why a physical substrate should contain subjective experiences. We cannot see the experience of red within the brain activity. Only what it does to the brain and body.
If you insist that this is the only way we can understand consciousness then you are going beyond science and making a metaphysical belief claim.
Yes it has in many ways and its not just about demonstrating mind without brain activity. Its also about mind influencing the physical activity which is the other way around. The mind is at the root rather than the physical. A memory or a subjective state that suddenly appears in the mind without apparent physical cause can change the physical state of the body and even objective reality.
There are a number of verified conscious experiences where there is little brain activity or absolutely know brain activity when the brain has flatlined. They have also compared brain signals between imagined events, hullucinations or other drug or anastetically induced states and found they are different to NDE brain activity.
The NDE brain activity happens in the higher consciousness regions and associated with memory and episodic experiences. In other words they are similar in nature to real lived experiences and the experiencers claim it is more real than everyday life and not dream like. Nor is it confusing and fragmented for which toxicity and unreal dreamlike states cause.
New evidence indicates patients recall death experiences after cardiac arrest
Up to an hour after their hearts had stopped, some patients revived by cardiopulmonary resuscitation (CPR) had clear memories afterward of experiencing death and had brain patterns while unconscious linked to thought and memory. As captured by EEG, a technology that records brain activity with electrodes, the patients saw spikes in the gamma, delta, theta, alpha, and beta waves associated with higher mental function. These have included a perception of separation from the body, observing events without pain or distress, and a meaningful evaluation of their actions and relationships. This new work found these experiences of death to be different from hallucinations, delusions, illusions, dreams, or CPR-induced consciousness.
New evidence indicates patients recall death experiences after cardiac arrest
Pim van Lommel, describes them, “the NDE is an authentic experience that cannot be simply reduced to imagination, fear of death, hallucination, psychosis, the use of drugs, or oxygen deficiency.” NDEs need to be examined as their own thing — a separate experience, that millions of people around the world encounter, and which is irreducible to any other (existing) neuroscientific explanation.
Lommel’s landmark paper reveals several interesting things. First, NDEs have been shown to occur some minutes after the heart of a critical patient has stopped, and at a time when “the brain ordinarily stops functioning and cortical activity becomes isoelectric.” This implies that whatever the source or reason for these NDEs, it does not lie in normal, understood brain processes. Second, our recollection of NDEs is much more like real memories than imagined memories. As a research team from the University of Padova showed,
Can near-death experiences prove the afterlife?
As mentioned there is now evidence of flatlined brains having higher level consciousness with clarity and detail. More real than real. This should not be possible even in an unconscious or compromised state let alone a flatlined brain with no brain activity.
By claiming that whatever it is "its not supernatural" you are making a belief claim and not a scientific one. There is no way you can or science can prove it is not the result of something beyond naturalistic causes because science cannot even tell us what the nature of matter is let along consciousness. All it can do is describe behaviour which tells us nothing about the nature of what is being described.
Doesn't the leading mainstream scientific interpretations and theories on QM data propose extra dimensions such as with M and String theory. It seems to me no matter which interpretation you want to take, the Many Worlds or Quantum Consciousness such as QBism your going to end up needing extra dimensions to be able to account for what is happening.
How can science even measure other dimensions when that would require a completely different set of methodology and assumptions which science doesn't include.
No I only claimed that 'Imagination' is not something the science method can even measure let along make claims about its nature as associated with consciousness. Its certainly of the Mind and not explained physically. Whether thats the supernatural or some undiscovered force know knows. But it is not within the closure of the physical.
But your missing my point. The existence of imagination, abstract and creative thinking which all come under subjective experiences does tell us something about the nature of Mind. That it cannot be reduced to its physical mechanisms. This is already inherent in the Hard Problem of consciousness.
You keep assuming the physicalist assumptions about the nature of the mind has been proven and all other possibilities are excluded when that is not the case at all. In fact because thse experiences point to a qualitative nature if anything it undermines the physicalist claims.
Ok then, does subjective conscious experiences reveal knoweldge about fundemental reality. If you say that experiences are not unreal what do you actually mean. Real in what sense. Real as in the fact they happen. But we are not talking about that reality are we but the place for conscious experiences as far as fundemental reality.
That is the fundemental difference that one side says ultimately experiences are physical in nature and the other that they are beyond physical nature. Or beyond the closure of the physical. I would have a guess that when it comes down to it you will fall on the side that its fundementally a physical phenomena caused by the physical and therefore not real as far as accounting for fundemental reality.
Ok I thought I had. But heres the thing. If you are going to make claims these alternative ideas are Woo then don't you think you should understand what you are refuting and not just assume. Integrated Information Theory is a well recognised idea proposed in various forms.
Integrated Information Theory (IIT), published in the journal BMC Neuroscience, is one of a small class of promising models of consciousness. “IIT is a very mathematical theory. A core idea suggests consciousness will emerge when information moves between the subsystems of an overall system: to be conscious, an entity has to be single and integrated and must possess a property called "phi" which is dependent on the interdependence of the subsystems.
https://www.space.com/is-the-universe-conscious
Once again if you don't know who Stapp and Wheeler are and what they are known for then how can you say their ideas are Woo. Stapp was a collaborator with Heisenberg and probably one of the leading physicists on consciousness and QM. I think his paper “Quantum theory and the role of mind in nature” broadly sums up his arguements that QM points to mind/consciousness being fundemental.
“From the point of view of the mathematics of quantum theory it makes no sense to treat a measuring device as intrinsically different from the collection of atomic constituents that make it up. A device is just another part of the physical universe… Moreover, the conscious thoughts of a human observer ought to be causally connected most directly and immediately to what is happening in his brain, not to what is happening out at some measuring device…
Our bodies and brains thus become…parts of the quantum mechanically described physical universe. Treating the entire physical universe in this unified way provides a conceptually simple and logically coherent theoretical foundation…”(H. P. Stapp, 2001).
Orthodox Copenhagen quantum theory renounces the quest to understand the reality in which we are imbedded, and settles for practical rules describing connections between our observations. Many physicist have regarded this renunciation of our effort to describe nature herself as premature, and...
arxiv.org
Wheeler generally agreed with Stapps position or rather Stapp with Wheelers and his 'Anthropic Participatory Universe'. Which is similar in that they both propose Mind and Consciousness as fundemental. That we as conscious observers are participators and entangled in the unraveling of reality.
But Wheeler is most known for coming up with the ideas of 'Black Holes and Worm Holes'. He pioneered the theory of nuclear fission with Niels Bohr and introduced the S-matrix in quantum mechanics. Also his 'Delay Choice Quantum' experiment which basically shows that measurement can even influence the past and from this came his arguements that conscious observers create reality.
The “Past” and the “Delayed-Choice” Double-Slit Experiment
Experimental Realization of Wheeler's Delayed-Choice Gedanken Experiment
Also his “
Participatory Anthropic Principle”
John Wheeler’s Participatory Universe
https://futurism.com/john-wheelers-participatory-universe/