My problem with the outlook of evolutionary biology is that it is being asked to do double duty as a 'philosophy of life'.
So the science advocates all say, with a tone of righteous umbrage, but this is a scientific question.
In fact, the origin and purpose of life is a much larger question than a merely scientific one.
I think it is impossible to dispute that live evolves from less to more intelligent life forms. If all that was required was to set up a self-sustaining reaction how come it didn't stop at blue-green algae, or insects, or reptiles, or some other type of creature or organism, which could spread all over the earth?
It's a human tendancy to assume we are at the top of the tree, and something even many biologists indulge in. But that's only because of our perspective. We are the end of a line that stretches back and encompasses everything else..
Life could have easily been a fluke but lets go a little further. If you enjoy math and physics, why not allow for an unlimited amount of possibilities? Eventually given enough time the statistics of probability would suggest the strangest, most bizarre or perhaps even improbable event would eventually happen.
[INDENT]Darwin broke with a fundamental dogma of Christianity-that God created man in his own image. At the same time he struck at metaphysical concepts of evolution, as they had prevailed from Aristotle to Hegel. He conceived of evolution as a blind sequence of events, in which survival depends upon adaptation to the conditions of life, rather than as the unfolding of organic entities in accordance with their entelechies.
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[INDENT]Thus his name has come to represent the idea of man's domination of nature in terms of common sense. One may even go so far as to say that the concept of the survival of the fittest is merely the translation of the concepts of formalized reason into the vernacular of natural history. In popular Darwinism, reason is purely an organ; spirit or mind, a thing of nature. According to a current interpretation of Darwin, the struggle for life must necessarily, step by step, through natural selection, produce the reasonable out of the unreasonable. In other words, reason, while serving the function of dominating nature, is whittled down to being a part of nature; it is not an independent faculty but something organic, like tentacles or hands, developed through adaptation to natural conditions and surviving because it proves to be an adequate means of mastering them, especially in relation to acquiring food and averting danger. As a part of nature, reason is at the same time set against nature-the competitor and enemy of all life that is not its own.
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The idea inherent in all idealistic metaphysics-that the world is in some sense a product of the mind-is thus turned into its opposite: the mind is a product of the world, of the processes of nature. Hence, according to popular Darwinism, nature does not need philosophy to speak for her: nature, a powerful and venerable deity, is ruler rather than ruled. Darwinism ultimately comes to the aid of rebellious nature in undermining any doctrine, theological or philosophical, that regards nature itself as expressing a truth that reason must try to recognize. The equating of reason with nature, by which reason is debased and raw nature exalted, is a typical fallacy of the era of rationalization. Instrumentalized subjective reason either eulogizes nature as pure vitality or disparages it as brute force, instead of treating it as a text to be interpreted by philosophy that, if rightly read, will unfold a tale of infinite suffering. Without committing the fallacy of equating nature and reason, mankind must try to reconcile the two.
In traditional theology and metaphysics, the natural was largely conceived as the evil, and the spiritual or supernatural as the good. In popular Darwinism, the good is the well-adapted, and the value of that to which the organism adapts itself is unquestioned or is measured only in terms of further adaptation. However, being well adapted to one's surroundings is tantamount to being capable of coping successfully with them, of mastering the forces that beset one. Thus the theoretical denial of the spirit's antagonism to nature-even as implied in the doctrine of interrelation between the various forms of organic life, including man-frequently amounts in practice to subscribing to the principle of man's continuous and thoroughgoing domination of nature. Regarding reason as a natural organ does not divest it of the trend to domination or invest it with greater potentialities for reconciliation. On the contrary, the abdication of the spirit in popular Darwinism entails the rejection of any elements of the mind that transcend the function of adaptation and consequently are not instruments of self-preservation. Reason disavows its own primacy and professes to be a mere servant of natural selection. On the surface, this new empirical reason seems more humble toward nature than the reason of the metaphysical tradition. Actually, however, it is arrogant, practical mind riding roughshod over the 'useless spiritual,' and dismissing any view of nature in which the latter is taken to be more than a stimulus to human activity.
(Max Horkheimer, Eclipse of Reason (1947; new edition New York: Continuum, 1974), p. vii
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In all of this, and in the OP, I don't think we are defending creationism or intelligent design. I think we are defending Western philosophy from it assault by materialism. It is a different thing altogether.
Firstly, can we do without the strawman argument?
No qualified biologist claims we evolved from ameoba - you are lying when you claim that's what the theory says. What they claim is that animals share a common descent and that at one point ameoba and man shared a common ancestor.
This common ancestor was probably more like ameoba than man, but no one claims it actually was ameoba.
What can we observe to support this view? A number of things including:
1) The fossil record.
2) The taxonomic tree.
3) The phylogenetic tree (comparisons to the taxonomic tree first proposed by Lineaus and the genetic code of animals alive and recently dead).
4) Geographical distribution of animals living and dead.
5) Ring species and other speciation events observed in the here and now.
6) Mutation, atavism, vestigial organs, pretty much all of genetics.
7) Inexplicable bad design - hernias, larangial nerves, hiccups, etc.
In fact, evolution is more complete a theory as Darwin supposed it than gravity was when Newton supposed it. Gravity has so far undergone one major revision - Relativity. Evolution as Darwin supposed still fits most of the apparent facts. There is some quibbling over detail, punctuated equilibrium and the like, but the general idea hasn't been threatened (in serious academic circles by those who actually understand the theory) in 150 years.
No.
Philosophically I think assuming the transcendant is in itself significant is a baseless assumption grounded in a metaphysical desire for there to be easily understood answers to the 'big questions' and comforting moral props to accompany them.
Whilst I think there is much to admire about Kant I feel he makes a fundamental error. He is involved in a program of reduction that refuses to take the last logical step.
Being - the assumption that the transcendant must be is no less crass than the assumption that it need not be.
But anyway - what has this to do with Darwin? One can believe in evolution and find the vistas of time and natural history it reveals transcendant. One can even - as the last two Popes have - say that it describes in detail what Genesis describes metaphorically.
Well, this is just going to lead to talking in circles.
You are treating the Plato's cave analogy as something holy in and of itself. This is just as crass a philosophical position as stressing that percieved reality is all there is.
To use your preffered tone of debate - it is bullshit.
Yet you have given no good reason as to why it's not evolution's business to describe what it describes.
It's not theory - it's a strawman arguement used to persuade people that scientists think and say things they don't actually think or say.
Apart from The fossil record, The taxonomic tree, The phylogenetic tree, geographical distribution of animals living and dead, Ring species and other speciation events observed in the here and now, Mutation, atavism, vestigial organs, pretty much all of genetics, otherwise Inexplicable bad design - hernias, larangial nerves, hiccups, etc. And so on...
Another strawman - who said you weren't allowed to enquire?
No, you just assume they do - but you haven't given any reason to justify such an assumption beyond "Kant said so".
The origin and purpose of life might be a much larger question than a merely scientific one.
The question is - what can those who assume the origin and purpose of life needs further expanation say to those of us who feel no such need, and recognise no inadequacy in their position?
I really don't know about that. I am working through this Simon Conway Morris book. He is a theist, but also a Professor of Paleontology at Cambridge, and no creationist. The section I am up to discusses the number of possible combinations of the various primitive elements of the cell, including DNA and RNA. It shows pretty convincingly that the number of possible, non-working combinations of the various elements amount to quite astronomically large numbers - 10 to the power of a hundred, I seem to recall. There are an unfathomably enormous number of ways that elements can combine in such a way that nothing further occurs, and very few ways that lead to self-sustaining reactions.
It is certainly evolutions business to descibe what it describes, but saying that we ALL came from common ancestry, and that was all there was FACT, is not tenable.
Well you keep dismissing my original question, basically because apparantly I'm not allowed to look at the accepted story from another angle. Care to actually debate the question rather than just dismiss it?
I am not disputing evolution as I specifically state.
Dave, thanks very much for a well reasoned response, I shall take that on ponder that some more. My partial answer, is, however, I don't find neo-darwinism intellectually satisfying as philosophy.
That is because we are, in fact, humans, and alone, as far as we can see, in all of life on earth, in being able to take exactly this perspective, and see how it evolved. And that, I believe, is not solely the outcome of chance and necessity, nor just the exigencies of survival. I don't think it is meaningful to explain human capacities in terms of adaptive capacity any more; this might have been the engine, but what of the payload?
Again, I can't 'do the math' but I think the numbers quickly become completely unimaginable.
I don't see why you bother, Dave. But it's good that you do. I would not. I promised myself years ago not to discuss evolution with creationists/IDists again.
Philosophical materialism - there is nothing supernatural.
Well, I stand corrected - but I hope my point is still clear. Attacking evolution because it states evolution is all there is is erroneous - using evolution as an inappropriate stand-in for Materialism and/or Naturalism.
In fact, it's even an unfair slur on Naturalism/Materialism, as most proponents of such things would still accept that much more is still to be learned, and that current scientific understanding (not just evolution) has a long way to go.
But they would doubt or deny (depending on the strength of their conviction) that an 'unscientific' explanation would exist at the root of it all.
I don't see why you bother, Dave. But it's good that you do. I would not. I promised myself years ago not to discuss evolution with creationists/IDists again.
I've read articles about it in New Scientist and so on (including some evolutionary arguments for religion), I wouldn't claim to be well read on the subject, though I think it's a very interesting area.
To be honest, whilst I find it flattering to be called knowledgable on the suject it's not something I really know an awful lot about. There are other posters on the forum who understand the actual nuts and bolts better than I do.
I think it's a fiarly easy thing to get a basic grasp of - which is why I am always rather astonished when people say things like "evolution says man came from ameoba" or "the bacterial flagellum is irreducibly complex" - because they're elementary misunderstandings of what is actually said about evolution by those who actually understand the subject.
Well, I stand corrected - but I hope my point is still clear. Attacking evolution because it states evolution is all there is is erroneous - using evolution as an inappropriate stand-in for Materialism and/or Naturalism.
In fact, it's even an unfair slur on Naturalism/Materialism, as most proponents of such things would still accept that much more is still to be learned, and that current scientific understanding (not just evolution) has a long way to go.
But they would doubt or deny (depending on the strength of their conviction) that an 'unscientific' explanation would exist at the root of it all.
Actually, Dave, I think that is a little disengenuous. I don't think the OP in this thread, or me, or many others, would have any issue with the theory of the evolution of species and descent of man, WERE IT NOT being put forward as a philosophical explanation of the nature of life and the place of man in the Universe.
I think Darwin's theory is a marvellous intellectual accomplishment and is very clearly true, as far as it goes. But there is a 'neo-Darwinist' movement which exrapolates from the biological to the metaphysical to the spiritual. This is not my misreading of the situation or my lack of knowledge of the science. It is at the heart of the very deep cultural divide which is real, present, and current.
Basically I think that theory falls apart on philosophical, and ontological grounds, namely - the necessary a priori.
'The God Delusion' R. Dawkins.
Actually, Dave, I think that is a little disengenuous. I don't think the OP in this thread, or me, or many others, would have any issue with the theory of the evolution of species and descent of man, WERE IT NOT being put forward as a philosophical explanation of the nature of life and the place of man in the Universe.