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Well I read that. Call me a big dense dummy, but it makes not a lot of sense to me. I can't understand, I mean me personally, I can't grasp the concept that something I do now can change something that has already happened.Hawklady wrote:Very interesting article link on the LT home page today. I find it astounding that our actions in the future could change our past. Comments?
http://www.huffingtonpost.com/robert-lanza/does-the-past-exist-yet-e_b_683103.html

Hawklady wrote:Very interesting article link on the LT home page today. I find it astounding that our actions in the future could change our past. Comments?
http://www.huffingtonpost.com/robert-lanza/does-the-past-exist-yet-e_b_683103.html
Metaluna wrote:Hawklady wrote:..... I can't grasp the concept that something I do now can change something that has already happened.
Most of the time I think there is just now, there is no past and there is no future, there is just this moment in time.
from Buzi-Blu's source, Opening quote from: Wheeler's Classic Delayed Choice Experiment, 03/23/03, by Ross Rhodes who wrote:
"Nonsense," said the reductionists. "Rubbish," said the materialists. "Completely absurd," said the naïve realists. "Yup," said the mathematicians.
Buzi-Blu wrote:Something also to do with the solutions for the wave equation with imaginary numbers and that the negative imaginary value had been traditionally ignored. If it is taken into account it predicts backward moving signals. Something like that.
Buzi-Blu wrote:The instantantaneous action at a distance is very odd, and would seem to indicate the backward signals in time. The more I think of it the less I understand.
Buzi-Blu wrote:And it is this that creates the "pool ball triangle"…
Buzi-Blu wrote:The question by Pons Asinorum about the contradiction: it only applies if the same photons are being detected I think.
Buzi-Blu wrote:(see the bottom of that page).
Buzi-Blu wrote:A few years ago when I read that entangled photon experiment I wondered if you could use it to know the future. If the interference pattern has gone then someone put the polarizer in place sometime in the future. There must be a snag in this idea otherwise you could build a machine to tell the lottery numbers.

Pons Asinorum wrote:Perhaps this is where mathematicians and scientists might disagree vigorously (recalling the quote in your first source). The chances of this happening spontaneously…
Metaluna wrote:Time is a river and we are floating down it in a small canoe, facing forward. We can't see what is behind us and can't see what is ahead of us around the next bend.

Buzi-Blu wrote:I have no idea. I went to bed thinking over some of this and of course achieved nothing. The black hole experiment is losing me now, the whole thing becomes way too mathematical.Pons Asinorum wrote:Perhaps this is where mathematicians and scientists might disagree vigorously (recalling the quote in your first source). The chances of this happening spontaneously…
What I mean is that the process of evolving from molecules, say, to what we have today - ie increasing complexity - is the opposite of the universe in general. A dead animal for example will break down in a statistically expected way but the animal came about by the 14 billion years of processes. The mystery to me is why does mathematics exist, why is there logic?
Last night I was trying to think how a particle could be a wave and particle. But what occured to me is this apparent wave behaviour is not really like waves, it is not as if photons (for example) cancel out in the dark patches which would give the impression of vanishing. Rather they always hit the screen somewhere but tend to land in the bright bands. So what could be causing a photon to "prefer" those bands?
Another idea, and I am going off tangent even more, is imagine a particle path as a line on a piece of paper, diagonal say. Now roll it up (ink on outside). The path becomes wave-like. So if extra dimensions collapsed down to a quantum scale then a particle will still be passing through them. Just an idea which doesn't help one bit but is one way of creating a wave-particle duality. I still feel there is a real universe out there, not the fuzzy magical one fashionable today, we just don't
Metaluna wrote:Time is a river and we are floating down it in a small canoe, facing forward. We can't see what is behind us and can't see what is ahead of us around the next bend.
Or not.....
Buzi-Blu wrote:What I mean is that the process of evolving from molecules, say, to what we have today - ie increasing complexity - is the opposite of the universe in general. A dead animal for example will break down in a statistically expected way but the animal came about by the 14 billion years of processes.
Buzi-Blu wrote:The mystery to me is why does mathematics exist, why is there logic?
Buzi-Blu wrote:So what could be causing a photon to "prefer" those bands?
Buzi-Blu wrote:Another idea, and I am going off tangent even more, is imagine a particle path as a line on a piece of paper, diagonal say. Now roll it up (ink on outside). The path becomes wave-like. So if extra dimensions collapsed down to a quantum scale then a particle will still be passing through them. Just an idea which doesn't help one bit but is one way of creating a wave-particle duality.
Buzi-Blu wrote:… this does not mean multiplying it by itself. Instead, you have to make another variable, a mirror-image version called the complex conjugate, by changing the sign [plus or minus] in front of the imaginary part.
Buzi-Blu wrote:There we go, one universe explained. If only Windows 7 64 bit was that simple.
Majeston wrote:Big Bang Abandoned in New Model of the Universe
http://www.technologyreview.com/blog/arxiv/25492/

Pons Asinorum wrote:I wonder why? Aside from simplicity, the imaginary term must not have any practical meaning (at least any known practical meaning).
Pons Asinorum wrote:Talk about entropy, W7 = increasing disorder
Just hope the universe does not have the BSOD; how does one reboot that sucker?

Buzi-Blu wrote:Majeston wrote:Big Bang Abandoned in New Model of the Universe
http://www.technologyreview.com/blog/arxiv/25492/
That is an interesting idea, new to me and much neater than the Big Bang with its ugly singularity. The forum on that page is very high level and way beyond my mathematical knowledge so I think I should just leave it at that. The analogies and ideas I put forward are almost certainly incorrect but they help get one way of picturing the world. Other methods are equally valid.
I am unfamiliar with the Urantia book but it looks to me to be opinion. To be acceptable it must have sound reasons for the claims, verifiable by experiment. Maybe it states truth, maybe not but there is no way of determining this.
Lewis Carroll Epstein's Relativity Visualized is a brilliant book for illustrating how space and time are bent due to gravity, and much more. ………… It is worth pursuing, even to make the paper models.
The Gribbin’s book is now number one in my reading list.
Pons Asinorum » 22 May 2011 03:02
The poem "The Blind Men and the Elephant" …..is based on an ancient fable out of India known by the same name.
It speaks to the folly of those men who beleive they know the absolute truth, even when it becomes clear that they do not.
I use the quote from the Saxe Poem because, among other things, it reminds me that as I come across yet another person with a modern, big book and a claim that all truth and knowledge resides in that book (all for the low, low price of...) -- proceed with caution and heed the warning from a fable dating back thousands of years.
Majeston wrote:Pons Asinorum » 22 May 2011 03:02
The poem "The Blind Men and the Elephant" …..is based on an ancient fable out of India known by the same name.
It speaks to the folly of those men who beleive they know the absolute truth, even when it becomes clear that they do not.
I use the quote from the Saxe Poem because, among other things, it reminds me that as I come across yet another person with a modern, big book and a claim that all truth and knowledge resides in that book (all for the low, low price of...) -- proceed with caution and heed the warning from a fable dating back thousands of years.
☺![]()
Buzi-Blu wrote:All ideas stated are opinion; there is no absolute truth that we can comprehend and we must always resort to analogies. Inevitably these analogies only work up to a point within its own bounds. We are apes, and as such have a narrow range of experiences, and it is only through these experiences that we can imagine things.
A blind person cannot imagine the colour red. None of us can imagine such a simple object as a four dimensional cube. We do not know what magnetic fields feel like but other creatures can. So, with topics such as space-time and the quantum world we have no hope of truly understanding. We may get a sense of parts of it by comparison to everyday things. Atoms, for example, are not like anything else; atoms are only like atoms.
The issue I have here is the route to knowledge, not so much with whatever that knowledge is. Science is the method of establishing how the world works - to develop a theory based on what has gone before, make a prediction then crucially test through experiment. All claims should be repeatable by anyone, with no secrecy or hidden sources. In this way small steps are made. It is only through such methods that the absolutely staggering results of quantum mechanics can be first derived and then proved. We can trust that the results are valid because independent researchers (possibly sceptics) can each repeat it.
Is the Sun or Earth at the centre of our Solar System? How can we know? Observation and a theory, and then prediction. However, most of us have not done this. Instead we trust those that did, and that if it had been wrong then others would have noticed that. Nevertheless, we know that the process is checkable if we should choose to double-check.
Statements within any holy book, even if true, cannot be verified. A track record of accurate facts cannot be counted as evidence that any additional facts are true. It is interesting in the quote about the oldest rocks in Canada that this fact can only be verified by academics from the McGill University. Holy books turn to science to give them credibility.
I personally tend to dislike it when humans are put on some evolutionary pedestal as if we are superior. None of us would survive long if it were not for roles of microbes in our gut, plants, bees, etc. etc. Every living thing on Earth shares exactly the same length of history. The worm in the garden also has 4 billion years of ancestors who each have struggled to produce offspring, and as such is now perfectly built for the function it performs. As apes we are therefore perfectly suited to ingeniously slaughtering each other and other things like realizing there is a wave-particle duality.
However, this too is opinion. We all choose our own methods. So I'll stick with the principles of academic research.
Majeston wrote:
Pons,
I do not find you amusing in the least. I have never seen you quote or intuit anything that was accurate, including everything you have written above and I agree that your manner and behavior demands a dismissal of any moderator status.

Pons Asinorum wrote:Correction: In my presentation of the Lorentz Transform for time dilation, I mistakenly transposed Δt and Δt'. My bad.
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