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rajnz00 » Wed Jan 04, 2017 4:12 pm wrote:ronjanec wrote:Raj, I am not you, and you are not me... we exist completely independent of each other in the universe
No we don't. The fact that you can recognise you are not me is totally relationally dependent. Your qualities only arise by the interaction of other things. Fundamental particles that pop into existence have no qualities at all until they are "observed", that is interact, with something else.
Don't want to go on and on. Leave you to think about it.
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Forest_Dump » Wed Jan 04, 2017 4:18 pm wrote:Now I see why topics like this can get moved to metaphysics, etc. Perhaps because sometimes the rabbit holes decorated with Greek symbols have no external, independent reference points, they sometimes seem to merge into kinds of mysticism. And I suspect that is also why denizens of these muky depths are among the most sensitive to accusations or even suggestions that they verge on religious dogma or could use some guidance from philosophers. But then again, many philosophers of a certain stripe do seem to come out of physics or math. Peculiar world. I have to remember to avoid these places - there be dragons here.
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ronjanec wrote:His question is actually a metaphysical/ontological question Forest, and the only proper or correct answers to his question are of the same nature.
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ronjanec wrote:
You asked "is time real?", I correctly answered your question within the accepted parameters of what defines "real" in philosophy and science.
ronjanec wrote:
"Strawman"? The question asked was "is time real?" According to the two definitions I posted here, time is not real because it has no objective existence(not a distinct physical object or thing existing anywhere in the universe), a fact which you appear to be in total agreement with. ???
Sorry Dave, but I prefer going with two established sources for a proper definition of the word "real" than something you just came up with off the top of your head:
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rajnz00 » January 4th, 2017, 5:12 pm wrote:ronjanec wrote:Raj, I am not you, and you are not me... we exist completely independent of each other in the universe
No we don't. The fact that you can recognise you are not me is totally relationally dependent. Your qualities only arise by the interaction of other things. Fundamental particles that pop into existence have no qualities at all until they are "observed", that is interact, with something else.
Don't want to go on and on. Leave you to think about it.
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rajnz00 » January 4th, 2017, 8:29 pm wrote:Scott, I addressed this question on my thread in Physics.
I am reproducing it below:
How I look at it is, we cannot extrapolate the results of the double slit experiment to the macro-world. Particles in isolation, like single photons, cannot have any properties until they are “observed”, that is “measured” or interacted with. Thus, before “measurement” they can have any property at all, such as position or spin. Because the measuring “instrument”, an electron or photon, is comparable in size to the particle being measured, it alters its state, by the act of “measurement”. It needs to be way smaller, example pressure gauge and tire. We can see the probability curve becomes exponentially narrower as the number of particles in the interaction increases.
I think the most ridiculous interpretation is the “many worlds” interpretation. The particle splits into every conceivable state and so does the human observer. We just happen to observe one of the states, in one of the universes. How convenient. No proof necessary, or possible. Moreover, it violates Newton’s ubiquitous 3rd law. The reaction should be EQUAL and opposite. A small photon shattering me into an infinite number of identical pieces seems to be a bit extravagant.
And an “observation” is merely an interaction. It does not need a conscious human to interpret it. That is merely an added, superfluous layer. So Einstein was right, (and Niels Bohr was wrong). The moon exists even if no one is looking at it. It is being “observed” by the photons of the sun, stars and cosmic rays.
Measurement is any interaction. Thus when the photon is "measured" / interacted with it is "observed". That essentially what an observation is, not seeing something and jotting down the results, which is the common English usage.
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rajnz00 » January 4th, 2017, 9:07 pm wrote:Yes space is real. But it is grainy, discrete, not continuous. So when quantum fluctuations happen, there could be moments before the particle interacts with anything. It is only defined after interaction. Rather like you being truly alone in the universe. You will have lost "your bearings". You won't know if you are a human, an elephant or an insect.
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rajnz00 » January 4th, 2017, 9:38 pm wrote:Scott - an "observer" is anything that interacts with anything else. And it's mutual. Not something that passively stands around separate from the "observed".
When you "observe" a rock, the rock "observes" you.
Your question "what is your definition of the space (with or without) matter?" is meaningless. Matter is not separate from space. Space is part of matter and matter is part of space. This is the idea of General Relativity. Not something through which matter moves, as Newton conceptualised.
I feel you are wanting to say something and perhaps what I have said does not go well with you. If so what is it? How do you visualise things?
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rajnz00 » Wed Jan 04, 2017 8:50 pm wrote:ronjanec,
Closely tied to the question Is Time Real? is the question Is the flow of time from the present into the past real?
Could you answer the question - does my time actually flow into the past? Did my birth occur before my first birthday? Will I die after I am born? Are these facts? or are they just illusions?
If your answer to the questions are Yes they are facts, then you are saying Time is real.
If you answer No they are illusions, then you are saying Time is not real.
Those are my definitions. If you don't like them, there is nothing I can do.
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without man and his timekeeping system existing, time and spacetime would not exist in any way shape or form in the universe. Both are just inventions of man and are not naturally occurring
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rajnz00 » Wed Jan 04, 2017 10:47 pm wrote:man's timekeeping system just keeps operating and recording the results(called time existing) in what man now calls the present, from it's previous operation in what man now calls the past.
That makes no sense.
Do you have a watch/ clock on your hand/ in your house? What is it recording? What did your watch record from yesterday till now? Let me make it simpler, what did it record from the time you sent your last message till the time you are reading this message? (how much time? And what happened during that time for you?)without man and his timekeeping system existing, time and spacetime would not exist in any way shape or form in the universe. Both are just inventions of man and are not naturally occurring
Pardon me, but that is bs. Man is superfluous to objects in the universe, so are his timekeeping systems. They are observing and being observed. (Interactions). Every object has its own history. It's continuing interactions. And those events are ordered.
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rajnz00 » January 4th, 2017, 11:28 pm wrote:"if we imagine a rock moving in an ideal absolutely empty space"
There is no "ideal absolutely empty space". It is teeming with "stuff". Matter, energy.
The rock is a macroscopic object. It cannot move either in space or time without being observed and observing. Whether a grain of sand or the moon, they are constantly being observed and observing, that is interacting. Hence they have properties, which arise because of a vast number of interactions, which are constantly taking place.
Hence the illusion stated earlier that you exist intrinsically by yourself.
It's the old Newtonian concept of a vast empty space through which objects like the moon travel. His equations are still amazingly accurate, but his concepts of absolute space and absolute time are as false as the geocentric system.
Matter is not "a form of space ", it is an integral part of space. Matter and space are real, but concepts can be illusions. Such as the concept of the sun, planets and stars moving around the Earth. They certainly appear to be doing so, but it is an illusion.
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Nature wrote:The equations of general relativity, having superseded Newton's account of gravitation, provide one of the great successes of twentieth-century physics. In 1949, Gödel discovered unexpected solutions to these equations corresponding to universes in which no universal temporal ordering is possible. A hypothetical inhabitant of such a universe could, in principle, travel to his own past. Yourgrau argues that because time fails to exist in these Gödel universes, and because the differences between such universes and our own are accidental, time can't exist in our world either.
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Scott Mayers:
Now you are sounding like one making horoscopes:
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Braininvat » January 5th, 2017, 1:08 pm wrote:This is not a science discussion. Moved it to Metaphysics.
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rajnz00 » January 6th, 2017, 6:21 am wrote:Braininvat » January 5th, 2017, 1:08 pm wrote:This is not a science discussion. Moved it to Metaphysics.
I disagree. Lee Smolin says that Time is "real", so does Richard Muller and Sean Carroll said "The origin of the universe and the arrow of time are major unsolved problems in our understanding of the natural world. But there is every reason to expect that they will someday be understood using the laws of physics. The quest to answer these questions helps make it all meaningful.
All of these have impeccable scientific credentials.
However, be as it may, I intend to discuss this in a scientific manner. I admit I have been distracted by an unnecessarily long discussion on the definition of "real". I should have chosen another title like the one I had about the arrow of time. But I'll run with it. If it's good enough for Richard Muller and Lee Smolin, it's good enough for me.
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Does anyone want to debate that "Time is Real" and "Time Exists" are synonymous statements?
That "Time" is an "Illusion".. like the "Universe spinning around the Earth". The Illusion is "Real" by subjective definition but "Time" as we think it is.. doesn't Exist.
Martin Davis:
The equations of general relativity, having superseded Newton's account of gravitation, provide one of the great successes of twentieth-century physics. In 1949, Gödel discovered unexpected solutions to these equations corresponding to universes in which no universal temporal ordering is possible. A hypothetical inhabitant of such a universe could, in principle, travel to his own past. Yourgrau argues that because time fails to exist in these Gödel universes, and because the differences between such universes and our own are accidental, time can't exist in our world either. I doubt that many readers would be convinced by this argument.
Martin Davis:
When his wife was hospitalized, Gödel literally starved himself to death, unwilling to eat anything not prepared by her. Referring to his sad end, Goldstein makes the untoward suggestion that he might have imagined that he was living in an actual Gödel universe in which he could look forward to an eternal recurrence
Our persistence in believing "Time is Real" is what causes so many to be uncomfortable with Quantum Mechanics.
My solution was to realize "Time" is actually "Distance" literally (as already pointed out previously).
Thanks Biv, for moving this thread to Metaphysics.
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Lee Smolin wrote:"More and more, I have the feeling that quantum theory and general relativity are both deeply wrong about the nature of time. It is not enough to combine them. There is a deeper problem, perhaps going back to the beginning of physics."
"I am convinced that quantum mechanics is not a final theory. I believe this because I have never encountered an interpretation of the present formulation of quantum mechanics that makes sense to me. I have studied most of them in depth and thought hard about them, and in the end I still can't make real sense of quantum theory as it stands."
"All that is real is real in a moment, which is a succession of moments. Anything that is true is true of the present moment. Not only is time real, but everything that is real is situated in time. Nothing exists timelessly."
Raj wrote:They are as per my definition. Defined as such - so no debate.
Raj wrote:Yeah but you never told me how we would get velocity or momentum without time.
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