Re-Problems With The Big Bang Theory

In another thread Straggler and I were discussing Inflation and the BBT. I raised the question that there was questions about the BBT. I was asked for the questions. It was suggested I start a thread that they might be discussed.Straggler made the following comment to Buzsaw Here. Which prompted some questions from me that Straggler answered.
Here and ask one of his own. I would like to present 7 question that are problems for the BBT that is found Here.
CAMBRIDGE COSMOLOGY HOT BIG BANGShortcomings of the Standard Cosmology I would like to see these problems addressed with evidence for and against as I think it would be very educational.Assertions will not be considered as evidence.God Bless,Edited by Adminnemooseus, : Replaced "BBT" with "Big Bang Theory" in topic title.Edited by Admin, : Fix title. I was originally going to close this thread because even the opening post was way, way off the topic of big bands, but then I realized that the title, "Re-Problems With The Big Band Theory", had a typo, which I've now fixed.

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

The problem is a simple big bang theory cannot explain how an Omega so close to critical density could arise.ROBERT H. BRANDENBERGER Physics Department, Brown University
says HERE Technologies | The world's #1 location platform: The Big Bang Theory has no answer to this question.I found this on a superstring site. So wouldn't that mean the universe is much younger than many of the stars in the universe?God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

Hi Straggler, Sorry about that, I would rather have moved my entire post but Moose said cut it down and start a thread. Feel free to bring anything over that you desire to as I will. The Big Bang Theory predicts that the Omega would be much greater today than it is. It does not predict an Omega at near critical density, Which it the observation. Message 6You have made this statement several times in the last couple of weeks. Now you have an opportunity to present your evidence.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

Hi cavediver, Which hypothesis of Inflation are you refering to. I don't want to fall into the trap of me talking about one version and you about a totaly different version.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

I did put that in the form of a question? If you will notice the question mark at the end of the sentence.With the predictions of the standard BBT the universe would only be about 8 billion years old. But we have stars older than that.If I remember correctly the age of the universe is determined by the extrapolation back to the Big Bang using the Hubble expansion rate. This expansion rate is dependent on the current density of the universe as well as composition.According to the standard BBT the universe would be much younger than 13.7 billion years old.Hubble's initial value was 500 km/s/Mpc the latest estimates are 70.1km/s/Mpc.Feel free to correct any of this as I am just digging trying to learn.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

If I understood what Einstein had said the density of the universe should have gotten to be less and that would make the universe younger. I know cavediver already set me straight that there was a problem but Inflation cured the problem.I will deal with Inflation later. Right now I wanted to see these problems that exist with the BBT discussed. But seems nobody wants to talk about them. I think there would be a wealth of information that could be brought forth that would enlighten many and especially me.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

I understand the initial conditions had to be very precise or the universe would not exist today.But I also read where the Einstein equation says that any deviation from flatness would grow to very large by now.But that is not what is observed.http://archive.ncsa.uiuc.edu/.../Cosmos/FlatnessProblem.html I like these assumptions without explanation. But I can't insert God without proving He exists.It seems like you are trying to tell me there is no problem with the BBT. But I keep finding scientist that say there is a lot of problems with the BBT.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

I left it out on purpose as I wanted to talk about the problems with the BBT. Without inflation the BBT would be dead.Inflation is an add on to the BBT to fix the problems listed in the OP.The reason I asked you in Message 10 "Which hypothesis of Inflation are you refering to." I was wanting to know which one had become a theory.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

Unless you are backtracking there is no space outside of the universe as time, space, and gravity all were contained in the universe that began to expand some 13.7 billion years ago.The problem we the uneducated have is, how does the universe expand?If the little pea sized universe is all that there is, and there is an absence of anything to expand into. Then is it just expanding into itself and we just think the universe is billions of light years across because we are actually so small?God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

Which hypothesis solves the problems listed?Present the one you think that does and we can discuss it. There is no updated model. There is the BBT that has been patched up and pawned off as a true good model. When the patches are just guesses.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

There are some very learned men I have read that says you can not explain the problems listed in the OP without some type of inflation period.ROBERT H. BRANDENBERGER Physics Department, Brown University says,

quote:

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Standard cosmology cannot explain the observed isotropy of the CMB.

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quote:

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The problems I will focus on here - the homogeneity, flatness and formation of structure problems are questions which have no answer within the theory and are therefore the main motivation for inflationary cosmology.

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http://arxiv.org/PS_cache/hep-ph/pdf/9910/9910410v1.pdfNo answer within the theory.That is the MAIN MOTIVATION for inflationay cosmology.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

So which version of Inflation as I asked you for earlier.The original by Guth or his 2001 version Eternal Inflation.
Chaotic inflation model.
Multi-field theories.
Open inflation.That is some.But Inflation has it's problems. No body can agree is one. Very few hypothesis have been thrown out.There seems to be a fluctuation problem for all realizations of potential.driven inflation.Chaotic inflation has a Trans-Planckian problem.Scaler field driven inflation does not eliminate the singularity.Then there is the cosmological constant problem.All these problems according to Robert H. Brandenbergerhttp://arxiv.org/PS_cache/hep-ph/pdf/0101/0101119v1.pdfNow there could be later data that I have not been able to find if so please point it out.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

How do you refute an idea?But when did an idea become a solution to a problem?God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

I didn't see you present that evidence.How can anyone refute what is not presented.But Robert H. Brandenberger, says there are some problems with inflation. Here5 Problems of Inflationary Cosmology
5.1 Fluctuation Problem
A generic problem for all realizations of potential-driven inflation studied up to now concerns the amplitude
of the density perturbations which are induced by quantum fluctuations during the period of
exponential expansion [26, 27]. From the amplitude of CMB anisotropies measured by COBE, and from
the present amplitude of density inhomogeneities on scales of clusters of galaxies, it follows that the
amplitude of the mass fluctuations M/M on a length scale given by the comoving wavenumber k at the
time tf (k) when that scale crosses the Hubble radius in the FRW period is of the order 10^’5.
However, as was discussed in detail in the previous section, the present realizations of inflation based
on scalar quantum field matter generically [71] predict a much larger value of these fluctuations, unless
a parameter in the scalar field potential takes on a very small value. For example, as discussed at the
end of the previous section, in a single field chaotic inflationary model with quartic potential the mass
fluctuations generated are of the order 10^21/2. Thus, in order not to conflict with observations, a value
of smaller than 10^’12 is required. There have been many attempts to justify such small parameters
based on specific particle physics models, but no single convincing model has emerged.
With the recent discovery [40, 41] that long wavelength gravitational fluctuations may be amplified
exponentially during reheating, a new aspect of the fluctuation problem has emerged. All models in which
such amplification occurs (see e.g. [48] for a discussion of the required criteria) are ruled out because the
amplitude of the fluctuations after back-reaction has set in is too large, independent of the value of the
coupling constant [49].qsHe also says in his conclusions: He says inflation is a nice idea. But there is no theory of inflation yet.So the crutch that is supposed to fix BBT's problems is crawling around on the ground.Andrew R. Liddle had this to say: Here
Inflation seems like a good idea because without it BBT is in a lot of trouble.Inflation was added on to the BBT because it was necessary or the BBT had to be discarded. Now some 27 years after inflation was proposed the solution is no closer.I think you said it best several months ago when you said we need a new theory. I am still satisfied with mine.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."

My statement was that without inflation the BBT was dead. BRANDENBERGER would not call it debunked even though he pointed out problems with the BBT, that did not agree with the theory.I will include a quote here that will speak to why anyone would not say anything negetive about the BBT. This comes from an open letter that is signed by over 400 Scientist and Engineers. Open Letter on CosmologyYou don't shoot the goose that lays the golden egg.From Message 42
He says the Standard BBT can not answer the homogeneity problem.
He says the Standard BBT can not answer the flatness problem.
He says the Standard BBT can not answer the formation of structure problem.The BBT was in serious trouble until Guth proposed Inflation 50 years after the BBT came on the scene.Now 27 years later Inflation has a lot of problems that have not been resolved. Even to the point there is no theory yet.But we know it happened like we think it did because it is necessary.ROBERT H. BRANDENBERGER said: the main motivation for inflationary cosmology was that the BBT could not answer those problems.ANDREW R. LIDDLEhttp://arxiv.org/PS_cache/astro-ph/pdf/9901/9901124v1.pdfFlatness problem,
Liddle says the BBT density problem would cause the universe to recollapse or rapidly expand and cool below 3k withing its first second of existence.The horizon problem
Liddle says it is impossible in the BBT for the Microwave photons to be in thermal equilibrium at almost the same temperature.The monopole problem
Liddle says, "Modern particle theories predict a variety of ”unwanted relics’, which would violate observations."The Idea of Inflation
Liddle says, "Seen with many years of hindsight, the idea of inflation is actually rather obvious."So without inflation the BBT would be in deep trouble.Both these guys believe in the BBT with inflation added on as a patch to fix it.Liddle even proposes a hypothesis of Inflation, and talks of many others.But they are only hypothesis of Inflation. No Theory.God Bless,

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"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."