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OK, now don't kill me on this, but what I'd like to know is this:
We know the Universe started with the Big Bang. That's all fine and good. But I just can't help thinking that time had to exist before the bang took place and whatever that thing was that exploded had to take shape and form much before. If so, time really goes back a long way before the big bang and so does the Universe. And technically, this equation could go on till Infinity... which is the real kicker because it practically means that nobody will ever know how it all began. Am I making sense or simply missing something? This may really sound amateurish (if a reasonable explanation exists and I'm not aware of it), but I can see that there are people here that may be able to satisfy my curiosity on this one. Thanks a lot Rohit |
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Graytown wrote:
OK, now don't kill me on this, but what I'd like to know is this: We know the Universe started with the Big Bang. That's all fine and good. But I just can't help thinking that time had to exist before the bang took place and whatever that thing was that exploded had to take shape and form much before. If so, time really goes back a long way before the big bang and so does the Universe. And technically, this equation could go on till Infinity... which is the real kicker because it practically means that nobody will ever know how it all began. Am I making sense or simply missing something? This may really sound amateurish (if a reasonable explanation exists and I'm not aware of it), but I can see that there are people here that may be able to satisfy my curiosity on this one. Thanks a lot Rohit First, your question is much better addressed to sci.astronomy or sci.physics. Second, the Big Bang wasn't (according to current theory) an explosion in the traditional sense of some large object going BOOM! and scattering debris. There really isn't a "thing that exploded". Instead, the "big bang" is a characterization of the early period of the universe as being hot, with rapid expansion ("hyperinflation", where the size is increasing faster than the speed of light.) We keep pushing back our knowledge of the early universe, and have a pretty good idea down to the first couple of seconds, but the physics doesn't imply the presence (or absence) of something before the universe anymore than it does outside the universe. It is unfortunate that the early characterization of the Big Bang talked about the "primordial atom", or the "ylem", and that something happened to cause it to explode. The modern view is that the explosion occured. Other than some initial conditions, we really can't tell about anything prior to the start of the Big Bang because the conditions of the Big Bang pretty much wiped everything else out. In fact, we know even less about the initial conditions than we thought, since it appears that, due to hyperinflation, certain ratios of particles will end up looking like they do now over a wide variety of initial conditions. It is contrary to "common sense", but when you get to cosmology, you're really dealing with high-energy physics and quantum theory, neither of which have much to do with "common sense" (which is really just our view of how things work at the scale in which we live.) It's "common sense" that heavy objects sink in water, but if you put an iron filing on the surface of the water in a glass, the surface tension holds it up. http://itss.raytheon.com/cafe/qadir/acosmbb.html has a very nice FAQ about the Big Bang. |
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I can't help thinking that time as we know it didn't exist when the
Universe didn't exist. -- Gene Seibel Hangar 131 - http://pad39a.com/gene/plane.html Because I fly, I envy no one. "Graytown" wrote in message om... OK, now don't kill me on this, but what I'd like to know is this: We know the Universe started with the Big Bang. That's all fine and good. But I just can't help thinking that time had to exist before the bang took place and whatever that thing was that exploded had to take shape and form much before. If so, time really goes back a long way before the big bang and so does the Universe. And technically, this equation could go on till Infinity... which is the real kicker because it practically means that nobody will ever know how it all began. Am I making sense or simply missing something? This may really sound amateurish (if a reasonable explanation exists and I'm not aware of it), but I can see that there are people here that may be able to satisfy my curiosity on this one. Thanks a lot Rohit |
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On Wed, 23 Jul 2003 16:51:38 -0400, "Ami A. Silberman"
wrote: Second, the Big Bang wasn't (according to current theory) an explosion in the traditional sense of some large object going BOOM! and scattering debris. There really isn't a "thing that exploded". Instead, the "big bang" is a characterization of the early period of the universe as being hot, with rapid expansion ("hyperinflation", where the size is increasing faster than the speed of light.) ....One recent theory that seems to solve the problem of hyperinflation is that the universe as we know it exists between two other dimensional planes that contacted one another over a vast area and as matter and anti-matter they produced enough annihilation energy to force back the two planes and provide enough room for the primordial soup to congeal into the universe we live in. It's also spawned a religiocosmological model where God/Yahweh/Roddenberry/etc didn't say "Let There Be Light", but rather went "Clap On clap!" OM -- "No ******* ever won a war by dying for | http://www.io.com/~o_m his country. He won it by making the other | Sergeant-At-Arms poor dumb ******* die for his country." | Human O-Ring Society - General George S. Patton, Jr |
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#7
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In article ,
says... (Graytown) wrote But I just can't help thinking that time had to exist before the bang took place and whatever that thing was that exploded had to take shape and form much before. If so, time really goes back a long way before the big bang and so does the Universe. And technically, this equation could go on till Infinity... which is the real kicker because it practically means that nobody will ever know how it all began. Am I making sense or simply missing something? Yep, this a problem of logical regression that has been around a long time, is not limited to scientific paradigms, and has led to various theological excursions such as "first cause" and "it's turtles all the way down." Modern variants are steady-state/cascading cosmologies that have, for example, universes like ours popping out of nowhere as a result of quantum fluctuations in some sort of Ueberspace. But where did Ueberspace come from? Ueberueberspace? And where... you see the problem. Basically, nobody has a clue, and it's very hard even to imagine what a clue concerning this problem of regression would look like. I know this is a common-sense idea, and like all common-sense ideas it doesn't apply well to higher mathematics and cosmology. But... As I said in an earlier post, another example of a discontinuous singularity in astrophysics is a black hole. Just as we can't infer the state of the universe just before the Big Bang, we (AFAIK from the reading I've done about it) can't really infer the state of matter, energy, physical dimensions and time within the Schwartzchild radius of a black hole. Could it possible be that the Universe is the interior of a black hole? And that each black hole we see in our own universe is another universe? And that the "expansion" we observe is actually the *compression* of all the particles and energy within the black hole? How could you tell the difference between space expanding and every particle and energy particle compressing? Isn't it a relative thing? Has this concept been rigorously disproven? Me, I like the turtles. Yeah -- they have a certain charm, don't they? "Ahhh, you can't fool me! It's turtles all the way down!" -- It's not the pace of life I mind; | Doug Van Dorn it's the sudden stop at the end... | |
#8
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In article ,
Mary Shafer wrote: It's all magic and special effects. The "Big Bang" is one particular model of what happened, based on the data collected so far. If enough more data gets collected, either your questions will get answered or a new model, probably even harder to visualize, will be created. Life is much easier if you just assume it's either Pixar or Industrial Light and Magic. Mary Good article on Slashdot a few weeks ago linking to a mathematical philosopher's arguments to the effect that the Universe as we know it is just a simulation running on someone else's computer. The following discussion ranged from "Deja vue is a glitch in the Matrix!" to serious discussions that at the time of the Big Bang (and the Big Crunch - which is looking increasingly LESS likely due to acceleration in the expansion of the universe), energy and information density would be infinite - ergo, enough processing capacity to literally "know all" and "see all" (like an old carnival mind reader, I suppose). Anyway, the upshot is that since information density was at one point (and maybe will be again some day) infinite, we MUST all be simulations. My take on it is that it may well be true, but the simulation is high enough fidelity to give me a believable simulacrum of self-awareness. Ergo, death and taxes are real enough for my purposes! On the other hand, Mary's theory that it's either Pixar or ILM is attractive, too. ;-) -- Herb Schaltegger, Esq. Chief Counsel, Human O-Ring Society "I was promised flying cars! Where are the flying cars?!" ~ Avery Brooks |
#9
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"OM"
...One recent theory that seems to solve the problem of hyperinflation is that the universe as we know it exists between two other dimensional planes that contacted one another over a vast area and as matter and anti-matter they produced enough annihilation energy to force back the two planes and provide enough room for the primordial soup to congeal into the universe we live in "Let There Be Light", but rather went "Clap On clap!" Yeah, the contact between the two planes theory is an attention-getter, as it is the first theory I have come across that attempts to describe anything prior to the Big Bang, or Clap On. Perhaps similar to the Probabilistic explanation, that the chance of the two planes coming in contact was astronomically small, and then it happened. Also worth noting that the Many Worlds theory has not been ruled out; that the Universe is one of more than one. |
#10
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"Kent Betts" wrote in message
... Also worth noting that the Many Worlds theory has not been ruled out; that the Universe is one of more than one. universe: n. 1. The aggregate of all existing things; the whole creation embracing all celestial bodies and all of space; the cosmos. (Funk & Wagnalls New International Dictionary of the English Language, Comprehensive Edition, 1987) There can be no such thing as more than one universe, since the word, by definition, encompasses everything. If there were more than one "universe" as you define it, then the sum collection of all "universes" would still be *the* Universe. "Multiverse" is an imaginary word sometimes used as a substitute for a lack of imagination, but in any case, it is synonymous with Universe, since there is nothing in a "multiverse" that is not in the Universe. -- If you have had problems with Illinois Student Assistance Commission (ISAC), please contact shredder at bellsouth dot net. There may be a class-action lawsuit in the works. |
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