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Before the Big Bang
Where time ends, does something else go on?

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Before the Big Bang

bert1
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Posted 07/26/09 - 09:35 PM:	#11
Kwalish Kid wrote: In the Big Bang theory, if we extrapolate it backwards, there is always an event before any given event. In the standard spacetime of the Big Bang theory, however, every event has a finite history in the standard measurement of time. This leads to a mathematical problem with the physics, so most cosmologists reject the idea of a Big Bang moment and wait for more physics to see what the early very universe was like. The Big Bounce was one idea: that the universe would expand and then contract to a really dense state in cycles. Oh, I see. So the event preceding the expansion of this universe was the crunch of the previous universe? I thought this universe was supposed to just spread out and die rather than contract again. Does that mean we are the last universe in this series of universes? If so, why have the previous ones contracted again, but not this one? I'm not expecting you to know the answer, by the way, but I thought I'd ask on the off chance.
"Like a ungroomed dog in which the desired look is it’s long hair but it has been so unattended to, that combing is impractical, and it might be better if the hair was cut and attended to as it grows back." d_martin

Kwalish Kid
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Posted 07/27/09 - 04:14 AM:	#12
The Big Crunch was a fairly popular theory from about 1960 to 2000. After that, the parameters of the standard cosmological model got pinned down well enough that the Big Crunch cycle looked pretty unlikely. It could be that we are on the end of a cycle, but there really is no evidence for what happened at what we might be tempted to call the start of the universe. Our theories of thermodynamics and particle physics have not been tested above a certain temperature, so physicists believe that we cannot properly speculate on what happened when the universe was hotter and denser than a certain level.
"Scientific truth is always paradox, if judged by everyday experience, which catches only the delusive nature of things." - KM, V, P and P Can you pass Religion 101?

Cadrache
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Posted 07/28/09 - 03:14 PM:	#13
If there is no interaction, we cannot claim we percieve time. Mr. Hawkin's cough new idea is interesting; though the depicted picture is only accurate if we only had two spatial strings. (I think, I haven't seen somebody knit with 3 strings before.) The neat thing is you might be able to more easily link string theory to Einstien's "inflation" aspect.
"...There was a writer who asked why it was that when we find positive experiences we say that only the physical facts are real, but in negative experiences we believe that reality is subjective. He made an example of those who say that in birth only the pain is real, the joy a subjective point of view, but that in death it is the emotional loss that is the reality." - Tony Ballantyne, Recursion. _____________________________________________ Truth is want. - The internal state of matters. Truth is Need. - The external state of affairs.

123savethewhales
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Posted 08/01/09 - 01:31 AM:	#14
I thought the introduction of dark energy pretty much killed any possibility of Big Crunch. Nowadays Big Freeze, and eventually Big Rip, seems to be the popular theory. Of course, this is only if we assume that we know enough about dark energy to begin with.
Keep it simple.

Shape
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Posted 08/26/09 - 08:28 AM: Subject: Before the Big Bang	#15
If there was nothing before the Big Bang, where did it come from? God?? There must have been a Universe before ours; for several reasons. I have some theories based on symmetry which may be of interest to those addressing such questions... http://www.e-journal.org.uk/shape/papers/i0201.html
The revolution of life the universe and everything... http://www.e-journal.org.uk/shape

ragus
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Posted 08/26/09 - 08:35 AM:	#16
ViperThunder wrote I wonder what it'd be like if we could somehow reach the farthest reaches of the Universe You're already there. Just change the point of view.
"A word in your ear is like an untethered goat in a field" Wittigenstein

cosscos
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Posted 08/27/09 - 02:16 AM:	#17
It is said Big Bang is caused by God. However, I wonder it would be applicable to Big Bang in economy. cc

Bmonk
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Posted 08/28/09 - 05:53 AM: Subject: heretic ideas	#18
If one has some ideas regarding the beginning of the universe, which incorporates other realms such as cognitive science, philosophy, psycology, theology, etc, and which would therefore be regarded as heretics by researchers from any above field, how would he publish his idea? Don't laugh at me. I am not the ONE. I am just curious about where I can expect to find something like that?

Jubal Harshaw
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Posted 08/28/09 - 09:36 AM:	#19
ragus wrote: ViperThunder wrote You're already there. Just change the point of view. This is supposing that the universe is infinite, which has yet to be demonstrated.

ragus
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Posted 08/28/09 - 09:57 AM:

#20

Jubal Harshaw wrote

This is supposing that the universe is infinite, which has yet to be demonstrated.

What I was pointing out was that in the observable (finite) universe what we take to be "the farthest reaches of the Universe" are, from that POV, where we are now.

"A word in your ear is like an untethered goat in a field" Wittigenstein

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