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what's going on here?
Ivan Seeking said:Then please explain the mechanism through which spin is conserved at a distance when a measurement is made on one particle in an entangled pair.
That would be fine if he was an objective scientist, but he clearly has an agenda, and that means that he can't be trusted...
unless of course Randi's work is published in a peer-reviewed, mainstream, scientific journal, which is our basic minimum here and throughout science.
siddharth said:I don't know. However, the point is that the "mechanism" (if that even means something) here is irrelevant, only the predictions that quantum mechanics makes, which can be (and are) experimentally verified.
Compare this with astrology. The "mechanism" by which astrology takes place is irrelevant. However, when people try to test the predictions that astrology makes in a controlled test, they find that the predictions are not true. Same thing with fortune tellers, etc.
As long as he performs the tests properly, I don't see what's wrong if he has a personal opinion. He's just exposing people who assert that astrology, faith healing, etc works for the frauds they are.
I'm surprised that you expect Randi to publish in a a peer-reviewed, mainstream, scientific journal, before he can perform such tests, while the people who he tests have never done so.
Also, most scientists don't take any of the claims seriously cause there's no evidence for the past hundred years. So, why would a journal be remotely interested in publishing such studies?
The point is that experimentally provable phenomena (repeatable observations under controlled conditions) need not be considered "supernatural", even if the mechanism behind the phenomena are not currently understood. That is a limitation of our understanding, and it is to be expected. We will never understand everything. It is quite a stretch to say that Randi is obligated to pay out a million bucks every time he cannot explain something that is so foundational that we cannot explain it through science. Does Randi owe a million bucks to everyone who asks him to explain how particle masses arise or to explain the mechanics of wave/particle duality? That's a huge stretch.Ivan Seeking said:You all want to argue that entanglement doesn't qualify because we know it's real, which in itself should make my point. You are arguing that nothing real qualifies for the challenge, whether we can explain it or not; even if it is one of the deepest mysteries of physics.
On one occasion Randi did agree that the claimed ability existed.
Arthur G. Lintgen claimed an ability to identify LP records without
labels. Randi tested him on behalf of Time magazine, and found that
Lintgen could in fact do this by reading the patterns of loud and
quiet in the groove. Lintgen did not get Randi's reward because he
had not demonstrated (or claimed) any paranormal ability.
Lots of classical music is structured into movements that can result in recognizable patterns in the textures of the grooves. In addition, the grooves in recordings of violins and other higher-pitched instruments with lots of even higher overtones will have a noticeably finer texture than, say, an AC/DC record. I don't have the link, anymore, but some years ago, a clever fellow wrote a program to reproduce music from optical scans of albums. The quality was pretty poor, but the application was impressive nonetheless.Curious3141 said:Dr Lintgen claimed that he could distinguish between classical music compositions merely by "reading" the grooves of vinyl records. Apparently, years back, Randi actually tested him and found his claims to be true. But Dr Lintgen got nothing because he never represented his claims as being paranormal, and Randi conveniently agreed.
turbo-1 said:I don't have the link, anymore, but some years ago, a clever fellow wrote a program to reproduce music from optical scans of albums. The quality was pretty poor, but the application was impressive nonetheless.
Curious3141 said:This looks interesting : http://www.randi.org/joom/index.php?option=com_content&task=view&id=97&Itemid=27
The superior cable audophile has actually consented to participating in the JREF challenge.
I find it a little alarming that Randi was the one to throw the word "paranormal" into the discussion, especially when the audiophile was at pains to make sure that he did not represent his abilities (such as they are) as paranormal.
Thank you! I have re-worked lots of old tube amplifiers and there are some impressive and some not-so-impressive changes that you can make early on in the signal chain. The best changes are early in the signal chain, and get propagated on and on. The last thing I would worry about is some odd coupling/capacitance/etc in the speaker wires. These people are weird.f95toli said:As a physisict who also happens to be an audiophile I must side with Randi here. While the "cable crowd" rarely CLAIM do to anything paranormal a lot of the ideas, terminology, techniques etc they use have more in common with New Age "healing crystals" etc than with science. The whole idea is that cables (usually made from what they claim is a VERY expensive material) can significantly "improve" the sound despite the fact that you can't measure the difference; e.g. silver cables make the sound "cooler" gold "warmer" etc (there is even a cable that uses water as a dielectric). There are also cables that claim the improve the sound by removing the "quantum noise".
There is also a LOT of money in this business; high-end cables cost many thousands of dollars and there are some that costs TENS of thousands of dollars.
turbo-1 said:The point is that experimentally provable phenomena (repeatable observations under controlled conditions) need not be considered "supernatural", even if the mechanism behind the phenomena are not currently understood.
wikiAlthough originally devised as a thought experiment that would demonstrate the incompleteness of quantum mechanics, actual experimental results refute the principle of locality, invalidating the EPR trio's original purpose.
Ivan Seeking said:Why? We have a definition for supernatural, and spin conservation at a distance in entangled systems meets the definition. For one, spin is conserved instantly; or at least much faster than speed of light communication would allow.
According to the current theory, it is not possible even in principle to measure the mechanism for spin conservation in entangled systems. Its not a matter of being difficult, it is impossible. And according to the defintion, this qualifies precisely as being supernatural. What you want is a completely arbitrary definition that allows us to pick and choose what qualifies based on personal bias. That could be considered the definition of bad science. Now if Randi specified that he was only interested in testing spoon benders, mind readers, and fortune tellers, we wouldn't have this problem.
I don't think you understand the depth of the paradox. QM predicts the correct results every time, but the mechanism - how spin is conserved - might as well be magic. And for all practical purposes, it is. This is why the EPR thought experiment was such a big deal.
wiki
The situation is roughly equivalent to this: I have a predictive model, or I have learned by doing experiments that psychics can make correct predictions under specific conditions, and it works every time, but I can offer no explanation as to how they do it. You are saying that because I can say when it works - say for example if it only works when they are standing on one leg and facing South - the psychics no longer qualify for the challenge.
I really don't want to make life difficult for Randi, but I do wish to reduce his ability to close people’s minds.
Ivan Seeking said:To answer your question specifically, as I said earlier, Randi and I once corresponded by email, and that's where he got black listed in my book in the first place.
To the contrary, I do understand the depth of the paradox. The fact that we do not know or cannot know the mechanism behind an observable event does not elevate the event to something paranormal, however. Quantum weirdness is something that we have to accept. The quantum world is not constrained by the rules of classical physics and we have to acknowledge that. Much of our world runs on semi-conductors that rely on quantum behaviors like tunneling that seem to violate the laws of classical physics. While we do not fully understand the mechanics behind these behaviors, we can model them, predict them, and can control them. The behaviors are no less weird for this, but they are hardly supernatural.Ivan Seeking said:Why? We have a definition for supernatural, and spin conservation at a distance in entangled systems meets the definition. For one, spin is conserved instantly; or at least much faster than speed of light communication would allow.
According to the current theory, it is not possible even in principle to measure the mechanism for spin conservation in entangled systems. Its not a matter of being difficult, it is impossible. And according to the defintion, this qualifies precisely as being supernatural. What you want is a completely arbitrary definition that allows us to pick and choose what qualifies based on personal bias. That could be considered the definition of bad science. Now if Randi specified that he was only interested in testing spoon benders, mind readers, and fortune tellers, we wouldn't have this problem.
I don't think you understand the depth of the paradox. QM predicts the correct results every time, but the mechanism - how spin is conserved - might as well be magic. And for all practical purposes, it is. This is why the EPR thought experiment was such a big deal.
Ivan Seeking said:if someone like Uri Geller was really bending spoons with his mind, I would probably be just as surprised as Randi.
turbo-1 said:To the contrary, I do understand the depth of the paradox. The fact that we do not know or cannot know the mechanism behind an observable event does not elevate the event to something paranormal, however. Quantum weirdness is something that we have to accept. The quantum world is not constrained by the rules of classical physics and we have to acknowledge that. Much of our world runs on semi-conductors that rely on quantum behaviors like tunneling that seem to violate the laws of classical physics. While we do not fully understand the mechanics behind these behaviors, we can model them, predict them, and can control them. The behaviors are no less weird for this, but they are hardly supernatural.
Moridin said:There is a difference between having an open mind and being gullible. Having an open mind means accessing each new piece of evidence and trying to see the bigger picture. Sure, it means accepting possibilities, but evaluating probabilities. It does not mean accepting everything. Randi is actually opening people's minds, not the other way around.
Mk said:If somebody was out there that was bending spoons with his mind and wanted to tell everybody, everybody would know.
I cannot define every-day occurrences as supernatural, even if we do not understand the mechanisms behind them. This includes all well-established quantum effects, but also extends to the macroscopic world. For instance, we do not have any understanding of how gravitational attraction arises. We have the Newtonian approximation, and we have Einstein's GR, but those are both mathematical models. They are predictive, but they do not explain the mechanism behind gravitation. After developing GR, Einstein tried all the remainder of his life to uncover the mechanism behind gravitation and inertial effects, to no avail. Understanding the mechanism of gravitation is key to a TOE, but despite the best efforts of the LQG folks and the String folks, we seem to be a long way away from that. It would seem that gravitation and inertia are supernatural by your definition. I cannot accept this view. The fact that these effects are universal and fundamental mean that they a real and are not supernatural, even if we do not understand the mechanism through which they arise. This applies equally to quantum effects that we observe, but cannot yet explain. We cannot expect Randi to "debunk" things that have been occupying many of the best minds for decades. That over-broad definition of "supernatural" is not consistent with our reality.Ivan Seeking said:That's because you can define supernatural to mean whatever you want. When exactly is something supernatural? We already were given a definition. I was responding directly to the definition. And the key point is that the mechanism cannot be measured; not even in principle. What better definition could you want?
Gokul43201 said:You can always ask one more "why" question that physics can not answer (eg: why are the 19 free parameters of the standard model what they are?), but that doesn't make any of them supernatural.
The things that underlie these questions are simply the building blocks of the present model (just as certain truths are axiomatic to a mathematical theory).
What is supernatural, however, is something that is claimed to occur at a likelihood that far differs from what is got from either controlled experimentation or where applicable, existing theory.
turbo-1 said:I cannot define every-day occurrences as supernatural, even if we do not understand the mechanisms behind them.
This includes all well-established quantum effects, but also extends to the macroscopic world. For instance, we do not have any understanding of how gravitational attraction arises. We have the Newtonian approximation, and we have Einstein's GR, but those are both mathematical models. They are predictive, but they do not explain the mechanism behind gravitation. After developing GR, Einstein tried all the remainder of his life to uncover the mechanism behind gravitation and inertial effects, to no avail. Understanding the mechanism of gravitation is key to a TOE, but despite the best efforts of the LQG folks and the String folks, we seem to be a long way away from that. It would seem that gravitation and inertia are supernatural by your definition.
I cannot accept this view. The fact that these effects are universal and fundamental mean that they a real and are not supernatural,
even if we do not understand the mechanism through which they arise. This applies equally to quantum effects that we observe, but cannot yet explain. We cannot expect Randi to "debunk" things that have been occupying many of the best minds for decades. That over-broad definition of "supernatural" is not consistent with our reality.
Ivan Seeking said:According to QM, there is for-real superluminal communication between pairs [or non-locality, or whatever we want to call it]. Doesn't QM pass Randi's challenge?
No Ivan, of course not! For the last couple of years, every single set of measurements I've made at work has shown something that was not explained by theory. This is true of any fundamental experimental research, and it happens every single day in hundreds of research labs around the world.Ivan Seeking said:So then the increasing rate of expansion of the universe would qualify? Would it qualify until we have a testable hypothesis to explain it?