Is the Creation of Our Universe from Nothing Truly Viable and Consistent?

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In summary, the conversation revolves around Hawking's new book "The Grand Design" and its argument that the universe can be created "out of nothing" due to the laws of gravity. There is a debate about whether Hawking's idea of creation aligns with religious beliefs or if it is a different concept entirely. There is also discussion about the consistency of this concept and how it relates to the laws of physics and quantum field theory. Overall, the conversation raises questions about the nature of creation and the energy content of the universe.
  • #71
QuantumClue said:
I was active in a conversation when you said the thread when bordering irrationality...

What I meant with "irrational" is what I wrote in the same post; it mainly served to defend the observer perspective that seems necessary by science.

To discuss what is or isn't unless it makes a difference seems strange at best. I am not able to follow such discussions.

IMHO, the observations does make a different to the observer. If there is no oberver, what are we talking about? I just loose track.

To get back on track: You mentioned a better quantum theory; I certainly also think QM needs revision, the question is more in which direction to look. What's your picture here?

/Fredrik
 
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  • #72
Fra said:
What I meant with "irrational" is what I wrote in the same post; it mainly served to defend the observer perspective that seems necessary by science.

To discuss what is or isn't unless it makes a difference seems strange at best. I am not able to follow such discussions.

IMHO, the observations does make a different to the observer. If there is no oberver, what are we talking about? I just loose track.

To get back on track: You mentioned a better quantum theory; I certainly also think QM needs revision, the question is more in which direction to look. What's your picture here?

/Fredrik

Well I will need to stop you right there. If you read back on the material, you will find I was not advocating for the preservation of an observer-dependancy on the universe. In fact, I argued quite the reciprocal. Let us examine some of my paragraphs to the crux of my various points.

Indeed. In fact it was A. Neumaier who first mentioned this, and it really is important to consider what Copenhagen is really on about. Everything about the experiments truly states that somehow objects are smeared over space and time as probabilities, and these probabilities have [two core interpretations]. One of them it is non-physical - the world have probability waves which have no substance, no eigenstates, no tangibility until some detector comes along and disturbs the system by locating it. A simple act of measurement which can be made by the human being, or it can be conducted by simply other atomic states.

Here I simply explain the Copenhagen way of thought. Also I mention how probabilities might be smeared over space (and I mention time before also because of the unity between physical events and change) that they could be either ethereal or physical manifestations.

Then we have the wave function which spreads out over space as a physical entity. Some experiments may be suggesting this is the case: http://www.independent.co.uk/news/sc...e-2162648.html - so let us ponder this.

1) No longer can we say objects do not exist until observation - but we can characterize certain properties by pulling them out of superpositions.

2) No longer can we state that these wave functions are ethereal. These probabilities do in fact exist physically in the world.


The article I linked to suggests that it is physical, which is actually the first blow to Copenhagen simply because:

So does the world need the human? Did the big bang require an initial observer? Does a universe that contains nothing which is invariant under the Hamiltonian dynamics, which would mean nothing remains nothing unless something is measured?

If probabilities do not exist physically then Copenhagen is not correct in saying that things are not real until they are observed... This has already been proven in a separate experiment which just came to mind: http://www.economist.com/node/13226725?story_id=13226725 - so I don't understand how you could think the discussion was in defense of the human observer. As I stated, it seems that reality can quite easily exist, and have real observable effects without the special aid of any human observer. Afterall, the universe has existed long before any humans arrived on the scene.

However I will now note there is a loophole. It is possible that our universe works by a top-bottom model, meaning that the universe is not created specifically from past to future, but rather the future is shaping the past, according to the Transactional Interpretation of quantum mechanics. If we add to the intelligence in the future sphere, then perhaps there is some kind of meaning to our existences, one which is actually unique in shaping the universe. Perhaps our measurements today is making a highly defined present, and this is the future to an otherwise, undefined past... Hawking believed in something similar, including many other scientists.

Personally I don't like to speculate on models which put to much emphasis on either side. I think the past and future are simultaneously as important as each other.
 
  • #73
After Alain Aspect's experiment with laser the quantum non-locality becomes real phenomenon. Many new interpretations appeared then, mostly deterministic or quasi deterministic like Transactional Interpretation for example. There is past and also a future allready.
The modern approach to the Big Bang shows us that our Universe expanses because it absorbs existing information beyond the Event Horizon (space recession). Therefore average density decreases due to Holographic Principle.
The information beyond our Event Horizon exists though we do not observe it.
The future is just a place on the already existing Information Background where we are going. If someone is there it would be his present.
Actualy our Information Background is changing because of the absorption of the information from beyond the Event Horizon. May be if our "observable Universe" were closed, we may move toward the future and past if we control the entropy ?
May be it is to much speculation.
 
  • #74
Thanks for your further elaboration.

QuantumClue said:
Well I will need to stop you right there. If you read back on the material, you will find I was not advocating for the preservation of an observer-dependancy on the universe. In fact, I argued quite the reciprocal

Yes and that's what I thought. And I did defend the observer perspective.

I'll respond more later and address what you wrote part by part, and explain what I mean... there are some distinctions that makes the entire difference. Because I may agree with part of what you say.

more later

/Fredrik
 
  • #75
Fra said:
Thanks for your further elaboration.



Yes and that's what I thought. And I did defend the observer perspective.

I'll respond more later and address what you wrote part by part, and explain what I mean... there are some distinctions that makes the entire difference. Because I may agree with part of what you say.

more later

/Fredrik

I don't know if you will agree at all. See I believe the universe is human-observer-independant.
 
  • #76
QuantumClue said:
I believe the universe is human-observer-independant.

Me too, but observer [tex]\neq[/tex] human.

I'll try to make the distinction later.

/Fredrik
 
  • #77
It seems to me that your views of how people think of the observers roles are not how I see them, so first some notes on what you wrote...
QuantumClue said:
No longer can we say objects do not exist until observation
I defend the observer view but would not accept this statement.

Btw - what objects? the whole point of science and physics is to try to describe and utilise nature. Until we know, all our environment is simply a black box. So I ask again in this light, what objects are you talking about?

Lacking evidence of a certain proposition beeing true, doesn't men it's false.

Without evidence, the observer does not deny possibilities, but without evidence the rational action of the obsever is independent of it. Nothing in your examples or links below contradicts this. On the contrary this ensures locality.

So I demand that whatever you call objects, must be inferred strictly in terms of interaction properties of the black box.
QuantumClue said:
2) No longer can we state that these wave functions are ethereal. These probabilities do in fact exist physically in the world. [/b]
I never had the view that they are ethereal. They are however not like physical substances.

The information, implicit in the state vector, is in CI encoded in the ENVIRONMENT or the state of the measurement device. This is very real. There is nothing ethereal about this IMHO.

Here a holographic situation appears; as I see it the "statevector of system A; relative system B" is NOT a physical property of system A, but a physical property of system B. But of course the physical property of B, is the result of the interaction history with A (or preparation of experiment), so it's a kidn of relation of almost holographic nature.

QuantumClue said:
The article I linked to suggests that it is physical, which is actually the first blow to Copenhagen simply because:
...
If probabilities do not exist physically then Copenhagen is not correct in saying that things are not real until they are observed...

First, I'm not defending classical CI. This is obviously incomplete as it presumes a classical observer.

I'm defening the observer perspective (the heart of CI) but dropping the classical observer.

That link I does't blow anything as I see it.
QuantumClue said:
As I stated, it seems that reality can quite easily exist, and have real observable effects without the special aid of any human observer. Afterall, the universe has existed long before any humans arrived on the scene.

An observer means any system encoding an information state, and that interacts. It hasnothing to do with humans.

No sensible physicist would claim that thus has anything to do with humans. I've started to think it's an distorted description made on purpose by people who don't like the observer perspective.

In CI the actual observer is the measurement device. The process whereby another classical system (a human or a tape recorder) simply copies the classical state of the indicator on the measuremnet devices is clearly trivial.

It contains no interesting physics. So it should be without doubt that the operator in the lab has nothing to do in this analysis.

I just think it's irrational to talk about "observable effects" without acknowledge the central role of an observer. (again, no need to confused this with the human operator of a lab).

I'm not sure if your objection is to the HUMAN observer specifically, or just OBSERVING system generally?

Btw, it's not possible to make an observation without distoring the system. The so called weak measurements are nevertheless a measurement. An observation is synonmous with interaction, which again means to note how the systems RESPONDS to perturbation. The weakly coupled measurements may be realized in various ways but there is no way to escape this. Weakly coupled situations can also be realized with extended interaciton times, so that the systems equilibrates with a local environment which is then probed, for minimal coupling of original system. But there is obviously still a coupling nevertheless, and the longer chain in between the larger is the probability of distorting the original information, making it less reliable.

/Fredrik
 
  • #78
I have so much I want to say, but I am pressed for time.

I will answer this part for now:

''I defend the observer view but would not accept this statement.''

Think of the alternative. Are we to believe that since no one was present during the creation of the universe, that it did not exist? For a great part in the initial moments of big bang leading to inflation, many particles never observed each other until inflation finished.
 
  • #79
QuantumClue said:
Are we to believe that since no one was present during the creation of the universe, that it did not exist? For a great part in the initial moments of big bang leading to inflation, many particles never observed each other until inflation finished.

In my view, the big bang IS the creation of the first proto-obserers, which then evolved on from that point, possibly leaving remnants even today.

About inflation, now it becomes speculative as there is te my knowledge no detailed satisfactory understanding of the mechanism behind this.

But the expectations on inflation, purely based on the observer view is that it corresponds to the inflation of an abstract event space, which means that the dominating process from the point of view of the desicion process of the inside observers, observing each other is just expanding the contact surface to the environment at the expensve of evolving complex internal structure. Thus the first thing to emerge is then some original form of area, once these observer grains become large enough it would become untenable to not evolve internal structure. As internal structure starts to emerge that can adapt some of the interactions and then inflation of the statespae would slow down.

So I think that there are definitely interactions during inflation. The grossly incomplete understanding of that event, and the emergence of space, selection of 4D structure etc gives us no IMHO reason to jump into conclusions about expansion speeds. IMO, the interactions would be a critical key to understand the mechanisms of inflation.

Inflation of spacetime is in my view dual to inflation of the complexity of observers. What these first protoobservers exactly ARE though, I do not konw, that is a much harder question. But presumaly some below Plancksize aggregate of complexions whose interactions together explain the emergence and inflation of 4D space as we know it.

The above isn't supposed to be a serious explanation of anything, the only purpose is serves is to add some reflections to show that I see no contraditions whatsoever in maintaining thte observers perspective into the big bang. These "proto-observers" has then evolve on until today, and they where the seeding structures of the world we see today; this is the way that are "observable" in the postdictive sense; but the real value of postditctions isn't to konw what really happened in the past, it's a test of the inference idea, that if working on history, may work for the future as well. That's IMO the "utility" of this.

Edit: In fact if you see if from the inference perspective, inflation simply means that observers just absorb information about the environment WITHOUT responding. In this sense it's not much of an interaction, it's rather like a one-way communication; this is what in my abstraction view inflates space. To me this in fact appears very plausible. Compare to the very EARLY part of a learning process, then you do not REACT back yo SIMPLY observer, note and store... only after you have acquired a certain critical complexity does it make sense to start producing your own actions. This is a totally new, but possibly useful way to see inflation.

/Fredrik
 
  • #80
Fra said:
Me too, but observer [tex]\neq[/tex] human.

I'll try to make the distinction later.

/Fredrik

Yes. It is very important to clarify it. I also use the word "observer" but I think a "relation" between information.
Someone on this thread wrote that information is just a relation between information and we need a frame of reference to see the information.
The information alone is non-local, timeless and weightless.

May be we have to distinguish an information alone and the visible information relation.
There is also wave function which is used as its squared magnitude or virtual particle-antiparticle in the Vacuum which is always a pair.

May be the Big Bang started with the relation between the information and the Event Horizon appears then ?
 
  • #81
czes said:
Yes. It is very important to clarify it. I also use the word "observer" but I think a "relation" between information.
Someone on this thread wrote that information is just a relation between information and we need a frame of reference to see the information.
The information alone is non-local, timeless and weightless.

I really like how Wojciech Zurek put it in one paper

"What the observer KNOWS, is indistinguishable from what the observer IS"

I think that is a really good way to put it. This means that the observer has no existence independent of what it knows (what information about it's own environment) it encodes.

This of course also means that a STABLE observer, is also in relation to it's environment in a sort of holographic sense, BUT in my picture this corresponds to equilibrium (referring to that the observer is stable). But I think that even close to equilibrium, the lack of perfect agreement is what is responsible for the flow of time. This is why the holographic connection for me isn't a starting point.

I'd choose to say that information is local beause the only way to measure inforamtion is with respect to other ifnormation, therefor locality is emergent in the space of information states, where each information state or observer is local to it's own information.

So observes that are in disagreement, is always somewhat "remote" by construction. This mean that there could be a "distance" between two internal states that even exists at the same 3D space point. You have something remotely like that in string theory in the compactified spaces... but I'm envisioning a compeltely different construction, more like verlindes entropic view.

/Fredrik
 
  • #82
One has to abandon at least the notion of naïve realism that particles have certain properties that are independent of any observation. Anton Zeilinger - Legett inequality http://en.wikipedia.org/wiki/Leggett–Garg_inequality

Our real Universe exist according to relation.
Is a not related alone information something or nothing then ?
 
  • #83
czes said:
One has to abandon at least the notion of naïve realism that particles have certain properties that are independent of any observation. Anton Zeilinger - Legett inequality http://en.wikipedia.org/wiki/Leggett–Garg_inequality

Our real Universe exist according to relation.
Is a not related alone information something or nothing then ?

The human is an observer. The equation [tex]human \ne observer[/tex] is not correct.

The human must observe, or what is it that we see? The human mind may not be viewing the world directly... it is afterall just a complex series of electrical signals moving through the nervous system and then interpreted by the brain. But we do view this bubble of perception, so it is not correct to say the human is not an observer.

But particles almost surely exhibit properties which are independant of the human observer. It formed the universe from the radiation era, and formed the very ground we stand on today, very independant of the human observer.
 
  • #84
QuantumClue said:
The human is an observer. The equation [tex]human \ne observer[/tex] is not correct.

The human must observe, or what is it that we see? The human mind may not be viewing the world directly... it is afterall just a complex series of electrical signals moving through the nervous system and then interpreted by the brain. But we do view this bubble of perception, so it is not correct to say the human is not an observer.

But particles almost surely exhibit properties which are independant of the human observer. It formed the universe from the radiation era, and formed the very ground we stand on today, very independant of the human observer.

I have to clarify my words. Observation means for me the relation not by the human mind. The matter exist when it is in a relation to another matter. A photon before measurement, observation, relation may have vertical and horisontal polarisation. The observation shows the information.
Here is my question - if the information or particle is not in a relation to another information is it something or nothing then ?
 
  • #85
Of course, all humans are qualified observers. We can agree there.
But not all observers are humans! (this was the important part) :)

And then I'm not talking about other animals, I mean that for example the nucleus of an atom, can "observer" electrons. etc.

ALOT of physicists that advocate the observerperspectve, are not using the word "observer" as synonym with human. It means an "observing system", generally a measurement device, or just any subsystems of the universe.

The general sense of observation is "interaction or query". Two systems are "observing each other" when they are interacting.

So when I say I think the state vector encodes the state of the observer, I am definitely NOT suggesting that it's in the state of the MIND of the observer. It's a PHYSICAL state of the observing system.

Of course, even the brain IS a physical state, so the analogy partly applies, but the major point is that all humans are observers, but not all observers are humans.

Do you agree with something here still?

/Fredrik
 

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