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Author Topic:   Before Big Bang God or Singularity
cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 178 of 405 (453183)
02-01-2008 4:22 PM
Reply to: Message 176 by ICANT
02-01-2008 4:00 PM


Re: Re=T=0
I took your word's and concluded the singularity could not exist according to your answers to the questions I asked.
I took Hawking's word's and concluded the singularity could not exist according to those statements.
So you are telling me I am not capable of taking your answers and the statements of Hawking and coming to a correct conclusion.
Yes, finally, this is exactly what I am saying.
Not becasue you are stupid or dumb but simply becasue it is not possible to extrapolate from analogies. The real language of this subject is mathematics - and rather complex mathematics. I am translating the mathematics into some vague words and pictures so some of the ideas can be explained to non-cosmologists/mathematicians. Hawking is doing the same thing, though aimed at a slightly different audiance. Our analogies only correspond to each other in part - we have our different ways of explaining the subject. So there is no way you can combine what we are saying to conclude anything. Even your chance of successfully extrapolating from what either of us are saying in isolation is extremely remote - the language we are using is not designed to be used to make predictions. For that you need the real mathematical language. Sad but true.
If that is the case would you please take your my questions and your answers and go through them one at a time and explain whatever it is that I am not understanding.
I can do that, but I need you to promise to stop running off with mad conclusions - in my first post in this thread, I presented quite a bit of information and given the responses I sorely regretted getting involved in this thread. I'm doing my VAT return, so time is at a premium this weekend.
Edited by cavediver, : No reason given.

This message is a reply to:
 Message 176 by ICANT, posted 02-01-2008 4:00 PM ICANT has replied

Replies to this message:
 Message 181 by ICANT, posted 02-01-2008 4:48 PM cavediver has not replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 191 of 405 (453249)
02-01-2008 6:18 PM
Reply to: Message 187 by Hyroglyphx
02-01-2008 6:01 PM


Re: ... In the beginning
I guess I'm waiting for the punchline or some explanation as to why singularity has no relevance to space-time
Who says it has no relevance?
Common sense would say that something coming from nothing is preposterous
Yes, 'common sense' would - but until you can actually define what you mean by 'something', 'from' and 'nothing' in the context of a solution to the Einstein Field Equations, the phrase has absolutely no meaning. I can assure you that this is not trivial.
That said - look at my post 13, and your reply 101. I don't see many questions there - I see posturing and half-baked nonsense claims.
Its nonsense to think that the cause of everything is inconsequential? That's half-baked nonsense?
Let's see what you wrote in post 101:
The multiverse theory is the only attractive alternative to answering the question of the First Cause without invoking the supernatural
Complete nonsense
he Hawking solution, which seems to be just pretend that such a question about the singularity is immaterial, is begging the question.
Unbelievable nonsense
You seem to think that I am misinterpreting what he meant by his north pole analogy. If so, explain what I'm not getting.
Hawking's solution to the singularity is not the 'north pole' analogy... the analogy is a way of explaining his solution to the layman. His (and Hartle's) solution is a fantastic piece of quantum cosmology mathematics in semi-classical quantum gravity. And this is what you refer to as question-begging If I find time, I'll derive the whole thing for you here and you can let me know where he went wrong. I take it you're fine with the standard ADM 3+1 decomposition and the Wheeler-deWitt equation?

This message is a reply to:
 Message 187 by Hyroglyphx, posted 02-01-2008 6:01 PM Hyroglyphx has replied

Replies to this message:
 Message 198 by ICANT, posted 02-01-2008 6:45 PM cavediver has not replied
 Message 222 by Hyroglyphx, posted 02-01-2008 9:29 PM cavediver has not replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 302 of 405 (454542)
02-07-2008 3:37 PM
Reply to: Message 300 by ICANT
02-07-2008 2:50 PM


Re: Big Bang.
Son Goku writes:
Well it is the correct theory of the early universe. It's not a theory of the universe's origins and never was.
Son you may think it is the correct theory but there are many who disagree with you.
Significantly less than 1% of all astrophysicists and cosmologists is not many... it is insignificant.
The Big Bang could not have happened without a singularity.
Wrong
According to cavediver there was a singularity at T=O.
In the Friedman-Lemaitre-Roberston-Walker 'big bang' GR solution, there is a singularity at T=0. In reality, no there was not a singularity at T=0, as I stated in my first post in this thread:
quote:
Strictly, the singularity does not exist as it is simply the artifact of inapplicable mathematics
But there was no space time before the Big Bang.
This statement is meaningless gibberish. There are also no oceans 1000 miles above the equator.
Then there was no place for the singularity to be.
What? The singularity is at T=0 in the FLRW solution of GR. Just because T only takes values from zero upwards, does not mean that T=0 is not a valid point!
Therefore it could not exist.
What does not exist is your understanding...
That had to be some kind of compression to get all the energy in the universe in such a small space.
That small space IS the Universe. It cannot be in any larger space because that space does not exist at that time!
That is unless energy can be created.
You'll have to let me know what you mean by energy...
According to Hawking's statements in his public lectures it is impossible for a singularity to be present at T=O
Rubbish
There is no space time, or gravity, therefore there can be no positive curvature of space time to produce a point that the singularity would be.
The singularity in the FLRW solution is surrounded by space-time. What are you talking about?
Neither would there be a black hole to produce a singularity.
What??? Where did this come from? What have black holes got to do with any of this?
Scientifically there is no way for a singularity to be present at T=O.
Well, there definitely is one at T=0 in the FLRW solution... as for reality, I think both SG and I told you that there most certainly isn't...
Big Bang can't happen if it is not there.
But of course it can...
We invent one more fudge factor. Such as. Imaginary time for the singularity to exist in.
Hawking REMOVED the singularity by use of 'imaginary time', which is neither a fudge nor invented but simply borrowed from particle physics mathematics, where its applicability is proved daily at every particle accelerator around the world.
Therefore my conclusions in Message 91 stands.
ICANT writes:
Premise 1: Singularity including the Big Bang is the best explanation for the origin of the universe. Falsified
Hmmm, my very first line posted in this thread, in Message 13:
quote:
The Big Bang/Singularity is not the origin of the Universe
My conclusion, for which I have considerable evidence:
quote:
ICANT's grasp of this subject is very poor and seems to have become worse over the course of these 300+ posts. Obviously Cavediver is blameless and it seems the blame lies squarely with Son Goku

This message is a reply to:
 Message 300 by ICANT, posted 02-07-2008 2:50 PM ICANT has replied

Replies to this message:
 Message 303 by ICANT, posted 02-07-2008 4:13 PM cavediver has not replied
 Message 305 by ICANT, posted 02-07-2008 4:38 PM cavediver has replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 306 of 405 (454568)
02-07-2008 5:23 PM
Reply to: Message 305 by ICANT
02-07-2008 4:38 PM


Re: Big Bang.
There was something at T=O.
Yes
From that something the universe has come into being as we see it today.
Yes
Science has tried to explain this by many theories.
No... from T=10^-43 seconds to present, there is essentially one theory. For T<10^-43 there are several lines of current research.
The most accepted of those is the Big Bang Theory.
Essentially the Big Bang theory is the only viable theory.
Everybody gets real uptight if you question this generally accepted theory.
Not at all. Questions are always welcome. But professionals eventually become uptight when know-it-all laymen try to teach them their subject...

This message is a reply to:
 Message 305 by ICANT, posted 02-07-2008 4:38 PM ICANT has replied

Replies to this message:
 Message 307 by Parasomnium, posted 02-07-2008 5:28 PM cavediver has not replied
 Message 308 by ICANT, posted 02-07-2008 6:53 PM cavediver has replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 309 of 405 (454605)
02-07-2008 7:19 PM
Reply to: Message 308 by ICANT
02-07-2008 6:53 PM


Re: Big Bang.
cavediver writes:
ICANT writes:
Science has tried to explain this by many theories.
No... from T=10^-43 seconds to present, there is essentially one theory. For T<10^-43 there are several lines of current research.
I thought the Big Bang Theory replaced a couple of theories back in the 1920's. Was I mistaken?
More like the 1960s, but then a couple is not many. And since then we have essentially had just the 'big bang' cosmology, with a tiny minority following 'plasma'-type cosmologies.

This message is a reply to:
 Message 308 by ICANT, posted 02-07-2008 6:53 PM ICANT has not replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 311 of 405 (454651)
02-08-2008 6:26 AM
Reply to: Message 305 by ICANT
02-07-2008 4:38 PM


Re: Big Bang.
Missed these:
If there was something at T=O.
What do you want to call it?
It's there in my very first post Message 13:
quote:
Colloquially, the singularity refers to the ultra-dense, ultra-hot state around T=0 (up to say T=10^-43 secs), and all evidence points to this very much existing.
Does this take place in real time or in the absence of any time?
It takes place in a Euclidean region of the Universe, located around T=0, where time *as you think of it* does not exist.
That small space IS the Universe. It cannot be in any larger space because that space does not exist at that time!
Explain how, if the space that is the universe and does not exist can be the usiverse that does exist today.
All I am saying is that at a particular early time, space is the size of a pea. At that time there is no extra empty space - it is not that everything has been squashed into one small pea-sized corner of the Universe. Space itself is the size of a pea. So anything in space must be confined to that size.
How can you squash an entire line of latitude into less than 10 square feet? Easy if you are at the North Pole.
Edited by cavediver, : No reason given.

This message is a reply to:
 Message 305 by ICANT, posted 02-07-2008 4:38 PM ICANT has not replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 322 of 405 (454719)
02-08-2008 12:01 PM
Reply to: Message 321 by Percy
02-08-2008 11:35 AM


Re: Big Bang.
I think your attempts to summarize what Cavediver and Son Goku have been telling you about the singularity and T=0 are also incorrect
No 'think' about it
I know that people are not always being consistent in their terminology and that this makes things difficult
Yes, this is very true; your 'c' analogy is apt. Using Universe to refer to both the 4d entity and the 3d space slice at a particular time causes untold problems when communicating to the layman, but is not even noticable between professionals. However, you will note that I tried a little terminology straightening in my very first post, which was immediately quoted-mined, misunderstood, and misrepresented by our resident pastor. I am thus not too convinced that untangling terminology would be of that much practical benefit in this case... other than to the peanut gallery of course.
Edited by cavediver, : No reason given.

This message is a reply to:
 Message 321 by Percy, posted 02-08-2008 11:35 AM Percy has not replied

Replies to this message:
 Message 324 by AZPaul3, posted 02-08-2008 2:16 PM cavediver has replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 325 of 405 (454742)
02-08-2008 2:25 PM
Reply to: Message 316 by ICANT
02-08-2008 8:53 AM


Re: Big Bang.
Percy the problem there is that all the information you can find is 3 to 4 years behind the present. Even on the internet most information is several years old.
All the current information is on pay sites and cost around 50 dollars per paper.
Completely untrue - vrtually all of the recent papers are available for free if you know where to look. Here is Hawking's latest on the No-Boundary Proposal from two days ago. Let me know what you think. Once you've digested that, I'll find some more for you...
There are some sites that keep up to date but they don't believe the Big Bang Theory is viable any longer and are into the alternatives.
Really? And what are these sites?
my aim in this thread was to show that according to what I found in the lectuers of Hawking that the singularity could not exist at T=O and therefore was not a better explanation for the orgin of the universe than God.
The singularity has never been an explanation of the origin of the Universe, as you have been told repeatedly so what have you acheived?
I think I accomplished that goal.
No, you have not. You have simply completely failed to grasp what has been explained to you ad nauseam. That you insist that you have managed to reason something in this field contrary to what Son Goku and I have been telling you is the height of arrogance. Let me know how you get on with that paper...

This message is a reply to:
 Message 316 by ICANT, posted 02-08-2008 8:53 AM ICANT has not replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 326 of 405 (454744)
02-08-2008 3:00 PM
Reply to: Message 324 by AZPaul3
02-08-2008 2:16 PM


Re: Peanuts and The Big Bang
My understanding .
Yep, that's a good peanut understanding. Minor quibbles would include:
Stressing the 'zero-dimensional' as possibly something odd, when all points are zero-dimensional. The North Pole is zero dimensional, but that doesn't mean anything strange happens there.
It is infinite energy density, not infinite energy; and I would possibly advise saying that the energy density grows without bound as you approach T=0.
I would avoid saying gravity, as that gives the wrong impression. Space-time curavture grows without bound as you approach T=0.
Take these on board, and it's looking rather good.

This message is a reply to:
 Message 324 by AZPaul3, posted 02-08-2008 2:16 PM AZPaul3 has not replied

Replies to this message:
 Message 327 by ICANT, posted 02-08-2008 5:41 PM cavediver has not replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 334 of 405 (454811)
02-08-2008 7:33 PM
Reply to: Message 332 by ICANT
02-08-2008 7:13 PM


Re: Big Bang.
If there was something at T=O as cavediver says.
Then it was there a few moments prior.
That does not follow at all... you can fool yourself that you understand this, but you will not fool me.
Or it appeared at T=O out of an absence of anything.
Complete nonsense
We are talking about the physics and mathematics of General Relativity and space-time, where time and space swap identities, time can loop back upon itself, and everything you think you know about 'common sense' and 'the way things must be' is utterly invalid. Welcome to being totally out of your depth.
As I said long ago, you need to stop making proclamations, empty your mind of all preconceptions, and ask questions. If you find yourself about to make a proclamation, make a quick check... if you have not yet made it past masters level cosmology, hold the proclamation and keep asking questions...
Edited by cavediver, : No reason given.

This message is a reply to:
 Message 332 by ICANT, posted 02-08-2008 7:13 PM ICANT has replied

Replies to this message:
 Message 339 by ICANT, posted 02-08-2008 7:53 PM cavediver has replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 341 of 405 (454836)
02-08-2008 7:59 PM
Reply to: Message 339 by ICANT
02-08-2008 7:53 PM


Re: Big Bang.
Where did it appear from then?
It didn't 'appear' from anywhere. It just is. If God (or a god) created the Universe, he didn't bring it into being at some point. He brought the whole of it into existence - past, present, and future. Stop looking towards the T=0 point for the act of creation. If there was an act of creation, then it applies to every point in space-time..

This message is a reply to:
 Message 339 by ICANT, posted 02-08-2008 7:53 PM ICANT has replied

Replies to this message:
 Message 345 by ICANT, posted 02-08-2008 8:37 PM cavediver has not replied

cavediver
Member (Idle past 3665 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 401 of 405 (455070)
02-10-2008 5:54 AM
Reply to: Message 400 by Admin
02-10-2008 5:20 AM


Re: Should This Thread Remain Open
Given the reams of counterproductive drivel from Tesla and ICANT, I think it should die (and thought so 100 posts ago.) If basic analogies are still being argued with at post 399, I do not see the discussion benefiting anyone, certainly not at this late stage.

This message is a reply to:
 Message 400 by Admin, posted 02-10-2008 5:20 AM Admin has not replied

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