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08-27-2002, 05:54 PM | #11 | |
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08-27-2002, 05:57 PM | #12 | |
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Science knows there are questions that can't be answered because the data is not there on which to speculate. |
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08-27-2002, 06:29 PM | #13 | |
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== Bill |
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08-27-2002, 06:42 PM | #14 | |
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On the other hand, in his book <a href="http://www.secweb.org/bookstore/bookdetail.asp?BookID=186" target="_blank">The Elegant Universe</a>, Brian Greene offers up the idea that some theme and variation of string theory might eventually produce all of the known cosmological constants as a natural product of the "Theory of Everything" (ToE). The truth lies (obviously) someplace in the future. We will either find that truth before humanity is exterminated or we will not. == Bill |
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08-27-2002, 07:57 PM | #15 |
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It's not entirely certain that there are laws of physics. The major conservation laws are consequences of symmetry, The law of conservation of momentum follows from the observation that every point in space is pretty much like every other point. The law of conservation of angular momentum arises from the observation that every direction is space is pretty much like every other. The law of conservation of energy arises from the observation that every point in time is pretty much like every other point in time.
It may be that all the laws of physics end up as consequences arising from the hypothesis that everywhere is pretty much like everywhere else in every respect. So, the new scriptures might begin, `And God said, "Let nowhere be special", and nowhere was special.' Admittedly, t=0 looks special, but that might be just because we are using an inappropriate coordinate system to measure time. |
08-27-2002, 11:45 PM | #16 | |
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And I agree with Jesse that all laws had to be there at Big Bang. It would be an impossible coincidence to get laws to 'form themselves', especially when they are part of the same process anyway. (all after the explosion of the big bang must be part of the same process - since EVERYTIHNG came from the Bang) |
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08-28-2002, 03:23 AM | #17 |
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Guys, if I'm correct, most of the laws of physics are formed during seventeenth century or so. At that time, the scientists don't really have a random view of the universe as everything was seen to behave in an orderly and deterministic manners which so-called set by God.
Since it had been known that all laws of physics only break down in points of singularities. It is reasonable that the physicists retain the 'old' scientifical language. |
08-28-2002, 05:05 AM | #18 |
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JESSE & JONESY and all the others of us interested parties: My *Opinion* Iz that this-hyere particular{unique?) example of Cosmos we're extant in (this particular one-of-all-the-many series/array of possible & IMpossible universes) happens to be the one that WORKS so as to allow for us & all-this to exist like this (= what we seem to observe) & in accordance w/ these "laws". Think this out f' y'se'fs; I've got chores to do. Abe
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08-28-2002, 06:53 AM | #19 | |
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08-28-2002, 08:06 AM | #20 |
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"Science knows there are questions that can't be answered because the data is not there on which to speculate."
I'm away from my library at the mo', but I remember reading someone saying in the 19th century that we would never have any idea what powered stars because in principle we could never get any data. There may be problems for which data is in principle unavailable, but I don't think it is clear that the origin of physical laws is one of them. Incidentally, I think when people talk loosely about physical laws, they are referring to the values of the constants associated with, e.g, gravity rather than things like conservation laws (which are indeed consequences of symmetry). "(eg. we may find enough about electrons to kill off the Heisenberg uncertainty priciple - which only exists because we don't know enough)" The interpretation that Heisenberg reflects the nature of reality rather than the limits of our knowledge is looking pretty good, actually. Electrons really don't have definite values of position and momentum at the same time - "No hidden variables" (I think Bell's theorem is a good example of something posed with the notion that it could never be checked, which was later checked.) Turning to the 'meta' debate, my theory is that people who approach science through evolution are used to a debate where the non-creationists hold all the cards. When it comes to the origin of the laws of the universe, there is not yet a convincing scientific account or even a consensus about what the problems are or might be. In a sense, the cards haven't been dealt yet. As yet there is no need to invoke a creator, but there is no nailed down account without a creator either. This situation is psychologically difficult for people emotionally committed to the non-existence of a God, which tends to force them into denying the possibility of the problem being investigated. If someone says to me "God did it", I can't right now present a wrapped up answer to counter them with (though there is no requirement that they be correct). "It can't be investigated" is equally unfounded I think, but also might be true. The two seem to me to be equivalent ways of sweeping the problem (if there is one) away. It might be that if we develop theories to account for the constants of the universe they might have other consequences that could be checked, for instance. Saying that the problem is forever beyond the reach of science is very premature IMHO. No offense is intended, and I don't have anyone in particular in mind writing this. [ August 28, 2002: Message edited by: beausoleil ]</p> |
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