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| Tags: anthropic, principle |
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#11
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"Robert J. Kolker" skrev i melding ... Uncle Al wrote: Life is finely tuned to exist in the universe. There is no anthropic principle. Sentience exists because the universe cannot be bothered with doing the fine stuff.. The Weak Anthropic principle has validity. It the universe were not a certain way physically then we would not have evolved. The nature of the universe must be such that life like ours can evolve in conditions that existed and exist on Earth. If the universe did not have stars that exploded and produced the elements of which we are composed we would not be here. Doesn't that presume that "life" is bound exclusively to our configuration of the physical substrate (carbon- and DNA-based)? "It the universe were not a certain way physically then we would not have evolved ..." - the way we have evolved, but perhaps another way? This wouldn't actually disprove the weak anthropic principle, but make it considerably weaker, I think; Granted, we are here, so it is trivially true that the conditions for our existence must obtain, but nowhere does it say that it had to be these conditions, or this kind of life: and so, not us. T |
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#12
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On Tue, 9 Dec 2003 22:45:30 -0800, "Mark Folsom"
wrote: "abracad" wrote in message . com... The so-called anthropic principle points out how finely tuned the universe is to support life. The anthropic principle doesn't do any such thing. Apparent fine tuning leads some to resort to the anthropic principle. However, is there any reason to believe this is the only universe that exists or ever existed? Or is it likely or possible that there could be an infinite number of other (less anthropic) universes that co-exist woth this one or have existed throughout eternity? For the anthropic principle to apply to the fine tuning of physics to allow our existence, it basically has to be the case that there were lots of trials, either elsewhere or elsewhen. Sort of like having a multitude of uninhabited planets for each one with intelligent life. Mark Folsom The anthoropic principle points out the obvious fact that this cosmos can support human life. Seems like a tautology. If the cosmos didn't support human life, who would know or care? That's the superficial view. Looking deeper we see the evolution of this cosmos from energy to matter, to life and to man. From apparent dead chaos comes wonderful us, alive, intelligent and conscious. All this by an unbroken web of cause and effect according to natural law. But what's so 'natural' about that sequence? Apparently the cosmos is many times more clever than we are. It made us in every detail. And now, in our wisdom, we sit in judgement on it, and find it cold, dead, and unworthy. |
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#13
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#14
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This is for the few people that have actually followed my point:
Ad Absurdum as well as some Filosofers, and other random supporters of idealistically chaotic bull**** wrote chancie-like stuff like: I think this anthropic principle is more of a vague 'final cause' thing to suppose that because we exist, there must be some special place for us in the heart of the universe, it must have planned to 'have' us all along. Just so happens I agree with that........ doesn't mean, however, that part of our 'special place' isn't to be wiped out suddenly with no chance to compose our swan song and beam it into space to be inevitably received by some intelligence who can appreciate it. No, that's false, assuming that the universe evolves in the manner in which I described, which, MY PHYSICS, BEING CORRECT, makes it the most likely scenario. There is plenty of evidence to strongly support the weak anthropic argument as a very special/fine connection to humans alright, as long as you don't leap outside the most fundamental entropic nature of nature in a big bang induced expanding universe. The weak argument in an entropic light goes as follows: 1) How many systems do you know of that can produce anti-particles?... puts us right up there with black holes and Super-Novae in terms of high energy physics. 2) Beyond that, how many systems do you know of that "attempt" to mix ALL levels of energy in nature?... puts us above those mentioned systems in terms of entropic preference, so WE are nature's best hope and preferred method for achieving mass equilibrium on a universal scale. We are preferred by nature, baby, so you'd better crank up the accelerators, the Port-o-Potties, and them BigRigs, while you fools keep blowing each other up if you wish for this to remain the case! Since speculation is the flavor, here's mine, butcept and unlike the Filosofers, mine has a very strongly supported theoretical and empirical basis. Number two above being true, it is quite logical to think that the human catalyst may just be the one that is DESTINED to set off the next BB... per the second law of thermodynamics, sports fans, as it applies to asymmetric transitions on a universal scale. Even in the worst case scenario, we are at the very least one of nature's more preferred methods for satisfying the second law of thermodynamics on a universal scale, and this is observationally proven, which just happens to be the Weak Anthropic Argument in an entropic light, for all you dim-bulbs spinning roulette wheels out there. Einstein said that god don't throw dice, and he was right, so don't ****ing tell Einstein not to tell nature what to do, cause he's the one that proven to have the first clue about what nature will and will not do! Cyrus Jones proved that infinity equals a hundred and three... -Dave Matthews http://display.lyrics.astraweb.com:2...l..gravedigger |
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#15
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"Keynes" wrote in message
... On Tue, 9 Dec 2003 22:45:30 -0800, "Mark Folsom" wrote: "abracad" wrote in message . com... The so-called anthropic principle points out how finely tuned the universe is to support life. The anthropic principle doesn't do any such thing. Apparent fine tuning leads some to resort to the anthropic principle. However, is there any reason to believe this is the only universe that exists or ever existed? Or is it likely or possible that there could be an infinite number of other (less anthropic) universes that co-exist woth this one or have existed throughout eternity? For the anthropic principle to apply to the fine tuning of physics to allow our existence, it basically has to be the case that there were lots of trials, either elsewhere or elsewhen. Sort of like having a multitude of uninhabited planets for each one with intelligent life. Mark Folsom The anthoropic principle points out the obvious fact that this cosmos can support human life. Seems like a tautology. If the cosmos didn't support human life, who would know or care? That's the superficial view. Looking deeper we see the evolution of this cosmos from energy to matter, to life and to man. From apparent dead chaos comes wonderful us, alive, intelligent and conscious. All this by an unbroken web of cause and effect according to natural law. But what's so 'natural' about that sequence? Apparently the cosmos is many times more clever than we are. It made us in every detail. And now, in our wisdom, we sit in judgement on it, and find it cold, dead, and unworthy. Hey Bozo, cite one person who has EVER seriously said that the universe is unworthy, or else admit that you're just a lying Bozo. Mark Folsom |
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#16
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"island" wrote in message ... abracad wrote: The so-called anthropic principle points out how finely tuned the universe is to support life. However, is there any reason to believe this is the only universe that exists or ever existed? Or is it likely or possible that there could be an infinite number of other (less anthropic) universes that co-exist woth this one or have existed throughout eternity? Remove the parts about other universes co-existing simultaneously and the answers become yes, and yes, "there could be other anthropic universes that have existed"... (and will exsist). But why remove the part about other universes co-existing simultaneously? It is very possible that is the case, in fact--assuming the principle of mediocrIty, the physical parameters of these universes would be randomly distributed, and the development of life (as we know it) in those universes would be incredibly rare. If M [superstring] thy is at all correct, multidimensional branes are ubiquitous in a higher dimension, and AIUI each may also be considered an independent universe with its own physical parameters. M thy is not yet completely developed and certainly not tested in any way, but regardless of this, there's no reason to disqualify the possibility of co-existing multiple universes. The Weak Anthropic Principle still holds though (as I define it) because it's only a tautology in a sense, saying that, in a universe where life exists, the universe is life-friendly as far as it's physical properties (parameters, rules) are concerned. There's no a priori reason at all we should not live in one of those universes, i.e., there is no need for the common assumption that the average multiuniverse needs to be life-friendly (i.e., predominately) for us to have fallen in one. It is probable that the constants which require intelligent human life were and will-be carried forth to a higher order in an evolutionary universe. But what is a "higher" order--do you mean sequentially? Dimensionally? Ethically, of greater complexity...etc. None of these things (except maybe dimensionality) are well-defined and just a human value judgement in _our_ universe. Just as the directionality of Darwinian Evolution, as a matter of fact--there is no need to assume an "intelligent-mover" or "-principle" directing evolution, simply the unthinking universe itself. Like Al says though, there ain't no tellin what that reality might be at the next level, so there's no guarantee that intelligent life will be the order of the day to fulfill the same need in the next universe. It may however be significant that the evolution of the universe defines the same process which allows humans to evolve in an entropic universe. Call it, the "Ratchet Theory" entropy results in greater order on a universal scale, where high-energy photons convert negative mass, (ghost particles/virtual particles) into real massive particles at the expense of increased tension between the vacuum and ordinary matter. This leads to an evolutionary leap as the universe evolves into a higher order of entropic efficiency, where a leap results in another big bang which carries constants that derive the so called, "Anthropic Principle" perpetually forward through time. The process of which is speak is proven he The -1th law http://groups.google.com/groups?q=is...al.net&rnum=33 Highly speculative, to say the least. :-)) ...tonyC |
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#17
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Anthony Cerrato wrote:
http://groups.google.com/groups?q=is...al.net&rnum=33 Highly speculative, to say the least. :-)) ...tonyC At the risk of appealing to authority, they don't allow unsubstantiated speculation in the moderated reasearch group, so learn some physics and then come back when you can tell the difference. Although I did make one mistake: The -1th Law (not) http://groups.google.com/groups?hl=e...%40sundial.net Dirac's Sea, OOPS!! http://groups.google.com/groups?hl=e...%40sundial.net Our Antropic Universe http://groups.google.com/groups?q=is...ial.net&rnum=6 Anthropic Principle http://groups.google.com/groups?q=g:...%40sundial.net Anthropic Principle and Intelligent Design http://groups.google.com/groups?hl=e...%40sundial.net Theory of Everything http://groups.google.com/groups?q=g:...%40sundial.net |
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#18
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abracad wrote:
The so-called anthropic principle points out how finely tuned the universe is to support life. However, is there any reason to believe this is the only universe that exists or ever existed? Or is it likely or possible that there could be an infinite number of other (less anthropic) universes that co-exist woth this one or have existed throughout eternity? Its likely this Universe is one of an infinite number of island Universes. As for the anthropic principle, life was impossible in the early history of the Universe, and as the Universe ages, lfe will some day be impossible again. If the Universe is open and will expand and not contract, life wil lhave been possible for a very short period of time compared to the time life was not and will not be possible. I see no attempt of the anthropic principle fans to say what this means. -- Bush! Chimp or chump? Cheerful Charlie |
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#19
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abracad gets an answer from me...
The so-called anthropic principle points out how finely tuned the universe is to support life. However, is there any reason to believe this is the only universe that exists or ever existed? Or is it likely or possible that there could be an infinite number of other (less anthropic) universes that co-exist woth this one or have existed throughout eternity? The anthropic principle goes a little further than pointing out that the universe is habitable, it also points out that were it not habitable we would not be here to inhabit it. However, Barrow and Tipler explicitly state that it is a principle that has been noted in widely different cultures and contexts, so its boundaries are, to say the least, a little fuzzy. Science contributes information as to exactly how finely-tuned the universe is. Under present-day *known* physics it's pretty finely-tuned. Under the wish-fulfillment science of n hundred years hence, it will all be proved to be inevitable: by a miracle of logic alone it will turn out that the universe could be no other way. Needless to say this is a pure pipe-dream - the universe appears to have a whole bunch of "constants" hand-picked to let us exist. Cosmology is still in the melting pot so it's premature to say how much flexibility the universe has/had in choosing its constants. At present the basic physical laws are still being chucked around. If a firm favourite Theory of Everything ever emerges, it will still (probably) have a number of arbitrary constants - so there will still be some fine-tuning. However, many speculative cosmologies allow the universe as we know it to be just a small region in a vastly bigger hyper-universe. Terminology gets confusing here. In the mid-20th century it was common to refer to our galaxy as "the universe"; as knowledge increased the term was used for the *visible* universe, as if anything over the horizon was of no interest to us - a sort of magical metaphysical make-believe land that we could know nothing about. These days we tend to mean the local region, a lot of which may be out of reach but which is a continuous region with much the same physics throughout. We therefore need a new word for *all* of physical reality, allowing for the possibility of huge numbers of regions like our universe. One picture is of countless "universes" bubbling out of a primordial space-time foam. Another is of a tree structure with "universes" budding off. No doubt the entire thing will eventually get to be called "the universe" and we will call our local region "the local region", d'oh! (The process may continue for ever, with more and more layers of hyper-universe to consider, but, maybe not. Maybe a final structure will emerge.) Thus the answer to your question is, as far as we know, physics allows our universe to be but one of many, each with different physical constants. There may not even be any limit to the number of universes. This would make our universe inevitable *somewhere*, indeed there would be an infinite number of indentical regions, plus all variations. making for the intriguing possibility that there are an infinite number of "Abracads" typing identical posts to Usenet. Perhaps in some of the similar universes, Windows won't crash and Jenifer Aniston will be crazy about me. Unfortunately, in an infinite number of other universes, my eyeballs have just exploded in a mass of maggots which are now dribbling down my monitor... However, it may also be that the number of universes is not infinite but just very big - so the most unlikely scenarios don't happen. That still leaves the maggots... |
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#20
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"Derek Potter" wrote in message ... abracad gets an answer from Anthropic Principle: Many people are aware of the weak and strong anthropic principle. The weak one says, basically, that is was jolly amazing of the universe to be constructed in such a way that humans could evolve to a point where they make a linving in, for example, universities, while the strong one says that, on the contrary, the whole point of the universe was that humans should not only work in universities but also write for huge sums books with words like 'Cosmic' and 'Chaos' in the titles. The universe is also balanced in such a way to allow rocks to exist, so perhaps we should call it a Lithic Principle. If Scrabble is necessary, then so are players, and a universe to play in. Woozy calls this the "Really Strong" or "Scrabble" Anthropic Principle. Humans (or at least intelligent beings) are necessary, providing an order to biological evolution which has been lacking since the failure of the Chain of Being. This also suggests that if aliens exist, they may well play Scrabble. Philosopher, physicist and mathematician see a black sheep. 'All sheeps are black' - immediately says philosopher. 'There are sheeps and some of them are black' - says physicist. 'There is at least one sheep, and at least half of it is black' - says mathematician. me... The so-called anthropic principle points out how finely tuned the universe is to support life. However, is there any reason to believe this is the only universe that exists or ever existed? Or is it likely or possible that there could be an infinite number of other (less anthropic) universes that co-exist woth this one or have existed throughout eternity? The anthropic principle goes a little further than pointing out that the universe is habitable, it also points out that were it not habitable we would not be here to inhabit it. However, Barrow and Tipler explicitly state that it is a principle that has been noted in widely different cultures and contexts, so its boundaries are, to say the least, a little fuzzy. Science contributes information as to exactly how finely-tuned the universe is. Under present-day *known* physics it's pretty finely-tuned. Under the wish-fulfillment science of n hundred years hence, it will all be proved to be inevitable: by a miracle of logic alone it will turn out that the universe could be no other way. Needless to say this is a pure pipe-dream - the universe appears to have a whole bunch of "constants" hand-picked to let us exist. Cosmology is still in the melting pot so it's premature to say how much flexibility the universe has/had in choosing its constants. At present the basic physical laws are still being chucked around. If a firm favourite Theory of Everything ever emerges, it will still (probably) have a number of arbitrary constants - so there will still be some fine-tuning. However, many speculative cosmologies allow the universe as we know it to be just a small region in a vastly bigger hyper-universe. Terminology gets confusing here. In the mid-20th century it was common to refer to our galaxy as "the universe"; as knowledge increased the term was used for the *visible* universe, as if anything over the horizon was of no interest to us - a sort of magical metaphysical make-believe land that we could know nothing about. These days we tend to mean the local region, a lot of which may be out of reach but which is a continuous region with much the same physics throughout. We therefore need a new word for *all* of physical reality, allowing for the possibility of huge numbers of regions like our universe. One picture is of countless "universes" bubbling out of a primordial space-time foam. Another is of a tree structure with "universes" budding off. No doubt the entire thing will eventually get to be called "the universe" and we will call our local region "the local region", d'oh! (The process may continue for ever, with more and more layers of hyper-universe to consider, but, maybe not. Maybe a final structure will emerge.) Thus the answer to your question is, as far as we know, physics allows our universe to be but one of many, each with different physical constants. There may not even be any limit to the number of universes. This would make our universe inevitable *somewhere*, indeed there would be an infinite number of indentical regions, plus all variations. making for the intriguing possibility that there are an infinite number of "Abracads" typing identical posts to Usenet. Perhaps in some of the similar universes, Windows won't crash and Jenifer Aniston will be crazy about me. Unfortunately, in an infinite number of other universes, my eyeballs have just exploded in a mass of maggots which are now dribbling down my monitor... However, it may also be that the number of universes is not infinite but just very big - so the most unlikely scenarios don't happen. That still leaves the maggots... |
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