« on: November 17, 2014, 11:55:47 am »
A day in the life of Nigel:
It is better to set off a nuclear bomb, than to sit and curse the dark.
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It's pretty clear that if craniosacral massage has an effect, it's not via the claimed mechanism.Yes, I agree with that.
Configurations are not belief states. Their distinctness is an objective fact with experimental consequences. The configurations are distinct even if no one knows the state of S; distinct even if no intelligent entity can ever find out. The configurations are distinct so long as at least one particle in the universe anywhere is in a different position. This is experimentally demonstrable.
I mean, now how crazy is that? What kind of paranoia does that inspire in some poor scientist?
Okay, so in the 21st century we realize in order to "know" a photon's history, the particles making up your brain have to be correlated with the photon's history. If having a tiny little sensitive thingy S that correlates to the photon's history, is enough to distinguish the final configurations and prevent the amplitude flows from canceling; then an entire sensor with a digital display, never mind a human brain, will put septillions of particles in different positions and prevent the amplitude flows from canceling.
But if you hadn't worked that out yet...
Then you would ponder the sensor having banished the Mysterious Phenomenon, and think:
The photon doesn't just want to be physically free to go either way. It's not a little wave going along an unblocked pathway, because then just having a physically unblocked pathway would be enough.
No... I'm not allowed to know which way the photon went.
The mysterious phenomenon... doesn't want me looking at it too closely... while it's doing its mysterious thing.
It's not physical possibilities that have an effect on reality... only epistemic possibilities. If I know which way the photon went, it's no longer plausible that it went the other way... which cuts off the mysterious phenomenon as effectively as putting a block between the mirrors.
I have to not observe which way the photon went, in order for it to always end up at Detector 2. It has to be reasonable that the photon could have gone to either mirror. What I can know is the determining factor, regardless of which physical paths I leave open or closed.
STOP THE PRESSES! MIND IS FUNDAMENTAL AFTER ALL! CONSCIOUS AWARENESS DETERMINES OUR EXPERIMENTAL RESULTS!
You can still read this kind of stuff. In physics textbooks. Even now, when a majority of theoretical physicists know better. Stop the presses. Please, stop the presses.
Anne Hathaway poses in the same position for 15 minutes, making you think the film has frozen.
The theory behind craniosacral therapy is not particularly wooey.
Practitioners claim there are small, rhythmic motions of the cranial bones, which they attribute to cerebrospinal fluid pressure, or perhaps arterial pressure. The therapist places their hands on the patient's head and (apparently) tunes into the craniosacral rhythm, the regular flow of the cerebrospinal fluid, allowing cerebrospinal fluid to move through the spine more easily. They then lightly palpate the patient's body and focus on the communicated movements. After this, the theory becomes wildly inconsistent between different authorities and practitioners.
Given that a rhythmic (though daily, rather than more frequent) process of cranial fluid managed to be missed until 2012 (see Nigel's Neuroscience Nook), I think it is possible that the autonomous rhythm, pulsation of the craniospinal fluid that Osborne described is not mythical.
After having outlined the theories of cranial osteopathy (SUTHERLAND, KARNI, UPLEDGER, and, more recently, CLAUZADE and DARRAILLANS), the authors refute the latter point by point. "Primary respiration" is in fact a way of thinking, and the various bones making up the calvaria and base of the skull, which are solidly synostosed in the adult, are clearly incapable of the pretended rhythmic displacements "described" by the osteopaths. Moreover, the C.R.L., like any liquid, is incompressible and mildly pulsatile. Conversely, although the brain clearly shows rhythmic pulsations, which every neuro-surgeon notes every day, the latter are exclusively connected to the vascular system.