Posted on 01/12/2009 7:23:26 AM PST by GodGunsGuts
DEBATE THREAD
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The commonly cited case for intelligent design appeals to: (a) the irreducible complexity of (b) some aspects of life. But complex arguments invite complex refutations (valid or otherwise), and the claim that only some aspects of life are irreducibly complex implies that others are not, and so the average person remains unconvinced. Here I use another principleautopoiesis (self-making)to show that all aspects of life lie beyond the reach of naturalistic explanations. Autopoiesis provides a compelling case for intelligent design in three stages: (i) autopoiesis is universal in all living things, which makes it a pre-requisite for life, not an end product of natural selection; (ii) the inversely-causal, information-driven, structured hierarchy of autopoiesis is not reducible to the laws of physics and chemistry; and (iii) there is an unbridgeable abyss between the dirty, mass-action chemistry of the natural environmental and the perfectly-pure, single-molecule precision of biochemistry. Naturalistic objections to these propositions are considered in Part II of this article.
Snowflake photos by Kenneth G. Libbrecht.
Figure 1. Reducible structure. Snowflakes (left) occur in hexagonal shapes because water crystallizes into ice in a hexagonal pattern (right). Snowflake structure can therefore be reduced to (explained in terms of) ice crystal structure. Crystal formation is spontaneous in a cooling environment. The energetic vapour molecules are locked into solid bonds with the release of heat to the environment, thus increasing overall entropy in accord with the second law of thermodynamics.
The commonly cited case for intelligent design (ID) goes as follows: some biological systems are so complex that they can only function when all of their components are present, so that the system could not have evolved from a simpler assemblage that did not contain the full machinery.1 This definition is what biochemist Michael Behe called irreducible complexity in his popular book Darwins Black Box2 where he pointed to examples such as the blood-clotting cascade and the proton-driven molecular motor in the bacterial flagellum. However, because Behe appealed to complexity, many equally complex rebuttals have been put forward,3 and because he claimed that only some of the aspects of life were irreducibly complex, he thereby implied that the majority of living structure was open to naturalistic explanation. As a result of these two factors, the concept of intelligent design remains controversial and unproven in popular understanding.
In this article, I shall argue that all aspects of life point to intelligent design, based on what European polymath Professor Michael Polanyi FRS, in his 1968 article in Science called Lifes Irreducible Structure.4 Polanyi argued that living organisms have a machine-like structure that cannot be explained by (or reduced to) the physics and chemistry of the molecules of which they consist. This concept is simpler, and broader in its application, than Behes concept of irreducible complexity, and it applies to all of life, not just to some of it.
Biologists universally admire the wonder of the beautiful designs evident in living organisms, and they often recoil in revulsion at the horrible designs exhibited by parasites and predators in ensuring the survival of themselves and their species. But to a Darwinist, these are only apparent designsthe end result of millions of years of tinkering by mutation and fine tuning by natural selection. They do not point to a cosmic Designer, only to a long and blind process of survival of the fittest.5 For a Darwinist, the same must also apply to the origin of lifeit must be an emergent property of matter. An emergent property of a system is some special arrangement that is not usually observed, but may arise through natural causes under the right environmental conditions. For example, the vortex of a tornado is an emergent property of atmospheric movements and temperature gradients. Accordingly, evolutionists seek endlessly for those special environmental conditions that may have launched the first round of carbon-based macromolecules6 on their long journey towards life. Should they ever find those unique environmental conditions, they would then be able to explain life in terms of physics and chemistry. That is, life could then be reduced to the known laws of physics, chemistry and environmental conditions.
However, Polanyi argued that the form and function of the various parts of living organisms cannot be reduced to (or explained in terms of) the laws of physics and chemistry, and so life exhibits irreducible structure. He did not speculate on the origin of life, arguing only that scientists should be willing to recognize the impossible when they see it:
The recognition of certain basic impossibilities has laid the foundations of some major principles of physics and chemistry; similarly, recognition of the impossibility of understanding living things in terms of physics and chemistry, far from setting limits to our understanding of life, will guide it in the right direction.7
Reducible and irreducible structures
To understand Polanyis concept of irreducible structure, we must first look at reducible structure. The snowflakes in figure 1 illustrate reducible structure.
Meteorologists have recognized about eighty different basic snowflake shapes, and subtle variations on these themes add to the mix to produce a virtually infinite variety of actual shapes. Yet they all arise from just one kind of moleculewater. How is this possible?
Figure 2. Irreducible structure. The silver coins (left) have properties of flatness, roundness and impressions on faces and rims, that cannot be explained in terms of the crystalline state of silver (close packed cubes) or its natural occurrence as native silver (right).
When water freezes, its crystals take the form of a hexagonal prism. Crystals then grow by joining prism to prism. The elaborate branching patterns of snowflakes arise from the statistical fact that a molecule of water vapour in the air is most likely to join up to its nearest surface. Any protruding bump will thus tend to grow more quickly than the surrounding crystal area because it will be the nearest surface to the most vapour molecules.8 There are six bumps (corners) on a hexagonal prism, so growth will occur most rapidly from these, producing the observed six-armed pattern.
Snowflakes have a reducible structure because you can produce them with a little bit of vapour or with a lot. They can be large or small. Any one water molecule is as good as any other water molecule in forming them. Nothing goes wrong if you add or subtract one or more water molecules from them. You can build them up one step at a time, using any and every available water molecule. The patterns can thus all be explained by (reduced to) the physics and chemistry of water and the atmospheric conditions.
Figure 3. Common irreducibly structured machine components: lever (A), cogwheel (B) and coiled spring (C). All are made of metal, but their detailed structure and function cannot be reduced to (explained by) the properties of the metal they are made of.
To now understand irreducible structure, consider a silver coin.
Silver is found naturally in copper, lead, zinc, nickel and gold oresand rarely, in an almost pure form called native silver. Figure 2 shows the back and front of two vintage silver coins, together with a nugget of the rare native form of silver. The crystal structure of solid silver consists of closely packed cubes. The main body of the native silver nugget has the familiar lustre of the pure metal, and it has taken on a shape that reflects the available space when it was precipitated from groundwater solution. The black encrustations are very fine crystals of silver that continued to grow when the rate of deposition diminished after the main load of silver had been deposited out of solution.
Unlike the case of the beautifully structured snowflakes, there is no natural process here that could turn the closely packed cubes of solid silver into round, flat discs with images of men, animals and writing on them. Adding more or less silver cannot produce the roundness, flatness and image-bearing properties of the coins, and looking for special environmental conditions would be futile because we recognize that the patterns are man-made. The coin structure is therefore irreducible to the physics and chemistry of silver, and was clearly imposed upon the silver by some intelligent external agent (in this case, humans).
Whatever the explanation, however, the irreducibility of the coin structure to the properties of its component silver constitutes what I shall call a Polanyi impossibility. That is, Polanyi identified this kind of irreducibility as a naturalistic impossibility, and argued that it should be recognized as such by the scientific community, so I am simply attaching his name to the principle.
Polanyi pointed to the machine-like structures that exist in living organisms. Figure 3 gives three examples of common machine components: a lever, a cogwheel and a coiled spring. Just as the structure and function of these common machine components cannot be explained in terms of the metal they are made of, so the structure and function of the parallel components in life cannot be reduced to the properties of the carbon, hydrogen, oxygen, nitrogen, phosphorus, sulphur and trace elements that they are made of. There are endless examples of such irreducible structures in living systems, but they all work under a unifying principle called autopoiesis.
Autopoiesis literally means self-making (from the Greek auto for self, and the verb poiéō meaning I make or I do) and it refers to the unique ability of a living organism to continually repair and maintain itselfultimately to the point of reproducing itselfusing energy and raw materials from its environment. In contrast, an allopoietic system (from the Greek allo for other) such as a car factory, uses energy and raw materials to produce an organized structure (a car) which is something other than itself (a factory).9
Autopoiesis is a unique and amazing property of lifethere is nothing else like it in the known universe. It is made up of a hierarchy of irreducibly structured levels. These include: (i) components with perfectly pure composition, (ii) components with highly specific structure, (iii) components that are functionally integrated, (iv) comprehensively regulated information-driven processes, and (v) inversely-causal meta-informational strategies for individual and species survival (these terms will be explained shortly). Each level is built upon, but cannot be explained in terms of, the level below it. And between the base level (perfectly pure composition) and the natural environment, there is an unbridgeable abyss. The enormously complex details are still beyond our current knowledge and understanding, but I will illustrate the main points using an analogy with a vacuum cleaner.
A vacuum cleaner analogy
My mother was excited when my father bought our first electric vacuum cleaner in 1953. It consisted of a motor and housing, exhaust fan, dust bag, and a flexible hose with various end pieces. Our current machine uses a cyclone filter and follows me around on two wheels rather than on sliders as did my mothers original one. My next version might be the small robotic machine that runs around the room all by itself until its battery runs out. If I could afford it, perhaps I might buy the more expensive version that automatically senses battery run-down and returns to its induction housing for battery recharge.
Notice the hierarchy of control systems here. The original machine required an operator and some physical effort to pull the machine in the required direction. The transition to two wheels allows the machine to trail behind the operator with little effort, and the cyclone filter eliminates the messy dust bag. The next transition to on-board robotic control requires no effort at all by the operator, except to initiate the action to begin with and to take the machine back to the power source for recharge when it has run down. And the next transition to automatic sensing of power run-down and return-to-base control mechanism requires no effort at all by the operator once the initial program is set up to tell the machine when to do its work.
If we now continue this analogy to reach the living condition of autopoiesis, the next step would be to install an on-board power generation system that could use various organic, chemical or light sources from the environment as raw material. Next, install a sensory and information processing system that could determine the state of both the external and internal environments (the dirtiness of the floor and the condition of the vacuum cleaner) and make decisions about where to expend effort and how to avoid hazards, but within the operating range of the available resources. Then, finally, the pièce de résistance, to install a meta-information (information about information) facility with the ability to automatically maintain and repair the life system, including the almost miraculous ability to reproduce itselfautopoiesis.
Notice that each level of structure within the autopoietic hierarchy depends upon the level below it, but it cannot be explained in terms of that lower level. For example, the transition from out-sourced to on-board power generation depends upon their being an electric motor to run. An electric vacuum cleaner could sit in the cupboard forever without being able to rid itself of its dependence upon an outside source of powerit must be imposed from the level above, for it cannot come from the level below. Likewise, autopoiesis is useless if there is no vacuum cleaner to repair, maintain and reproduce. A vacuum cleaner without autopoietic capability could sit in the cupboard forever without ever attaining to the autopoietic stageit must be imposed from the level above, as it cannot come from the level below.
The autopoietic hierarchy is therefore structured in such a way that any kind of naturalistic transition from one level to a higher level would constitute a Polanyi impossibility. That is, the structure at level i is dependent upon the structure at level i-1 but cannot be explained by the structure at that level. So the structure at level i must have been imposed from level i or above.
The naturalistic abyss
Most origin-of-life researchers agree (at least in the more revealing parts of their writings)10 that there is no naturalistic experimental evidence directly demonstrating a pathway from non-life to life. They continue their research, however, believing that it is just a matter of time before we discover that pathway. But by using the vacuum cleaner analogy, we can give a solid demonstration that the problem is a Polanyi impossibility right at the foundationlife is separated from non-life by an unbridgeable abyss.
Dirty, mass-action environmental chemistry
The simple structure of the early vacuum cleaner is not simple at all. It is made of high-purity materials (aluminium, plastic, fabric, copper wire, steel plates etc) that are specifically structured for the job in hand and functionally integrated to achieve the designed task of sucking up dirt from the floor. Surprisingly, the dirt that it sucks up contains largely the same materials that the vacuum cleaner itself is made ofaluminium, iron and copper in the mineral grains of dirt, fabric fibres in the dust, and organic compounds in the varied debris of everyday home life. However, it is the difference in form and function of these otherwise similar materials that distinguishes the vacuum cleaner from the dirt on the floor. In the same way, it is the amazing form and function of life in a cell that separates it from the non-life in its environment.
Naturalistic chemistry is invariably dirty chemistry while life uses only perfectly-pure chemistry. I have chosen the word dirty chemistry not in order to denigrate origin-of-life research, but because it is the term used by Nobel Prize winner Professor Christian de Duve, a leading atheist researcher in this field.11 Raw materials in the environment, such as air, water and soil, are invariably mixtures of many different chemicals. In dirty chemistry experiments, contaminants are always present and cause annoying side reactions that spoil the hoped-for outcomes. As a result, researchers often tend to fudge the outcome by using artificially purified reagents. But even when given pure reagents to start with, naturalistic experiments typically produce what a recent evolutionist reviewer variously called muck, goo and gunk12which is actually toxic sludge. Even our best industrial chemical processes can only produce reagent purities in the order of 99.99%. To produce 100% purity in the laboratory requires very highly specialized equipment that can sort out single molecules from one another.
Another crucial difference between environmental chemistry and life is that chemical reactions in a test tube follow the Law of Mass Action.13 Large numbers of molecules are involved, and the rate of a reaction, together with its final outcome, can be predicted by assuming that each molecule behaves independently and each of the reactants has the same probability of interacting. In contrast, cells metabolize their reactants with single-molecule precision, and they control the rate and outcome of reactions, using enzymes and nano-scale-structured pathways, so that the result of a biochemical reaction can be totally different to that predicted by the Law of Mass Action.
Perfectly-pure, single-molecule-specific bio-chemistry
The vacuum cleaner analogy breaks down before we get anywhere near life because the chemical composition of its components is nowhere near pure enough for life. The materials suitable for use in a vacuum cleaner can tolerate several percent of impurities and still produce adequate performance, but nothing less than 100% purity will work in the molecular machinery of the cell.
One of the most famous examples is homochirality. Many carbon-based molecules have a property called chiralitythey can exist in two forms that are mirror images of each other (like our left and right hands) called enantiomers. Living organisms generally use only one of these enantiomers (e.g. left-handed amino acids and right-handed sugars). In contrast, naturalistic experiments that produce amino acids and sugars always produce an approximately 50:50 mixture (called a racemic mixture) of the left-and right-handed forms. The horrors of the thalidomide drug disaster resulted from this problem of chirality. The homochiral form of one kind had therapeutic benefits for pregnant women, but the other form caused shocking fetal abnormalities.
The property of life that allows it to create such perfectly pure chemical components is its ability to manipulate single molecules one at a time. The assembly of proteins in ribosomes illustrates this single-molecule precision. The recipe for the protein structure is coded onto the DNA molecule. This is transcribed onto a messenger-RNA molecule which then takes it to a ribosome where a procession of transfer-RNA molecules each bring a single molecule of the next required amino acid for the ribosome to add on to the growing chain. The protein is built up one molecule at a time, and so the composition can be monitored and corrected if even a single error is made.
Specially structured molecules
Life contains such a vast new world of molecular amazement that no one has yet plumbed the depths of it. We cannot hope to cover even a fraction of its wonders in a short article, so I will choose just one example. Proteins consist of long chains of amino acids linked together. There are 20 amino acids coded for in DNA, and proteins commonly contain hundreds or even thousands of amino acids. Cyclin B is an averaged-size protein, with 433 amino acids. It belongs to the hedgehog group of signalling pathways which are essential for development in all metazoans. Now there are 20433 (20 multiplied by itself 433 times) = 10563 (10 multiplied by itself 563 times) possible proteins that could be made from an arbitrary arrangement of 20 different kinds of amino acids in a chain of 433 units. The human bodythe most complex known organismcontains somewhere between 105 (= 100,000) and 106 (=1,000,000) different proteins. So the probability (p) that an average-sized biologically useful protein could arise by a chance combination of 20 different amino acids is about p = 106 /10563 = 1/10557 . And this assumes that only L-amino acids are being usedi.e. perfect enantiomer purity.14
For comparison, the chance of winning the lottery is about 1/106 per trial, and the chance of finding a needle in a haystack is about 1/1011 per trial. Even the whole universe only contains about 1080 atoms, so there are not even enough atoms to ensure the chance assembly of even a single average-sized biologically useful molecule. Out of all possible proteins, those we see in life are very highly specializedthey can do things that are naturally not possible. For example, some enzymes can do in one second what natural processes would take a billion years to do.15 Just like the needle in the haystack. Out of all the infinite possible arrangements of iron alloy (steel) particles, only those with a long narrow shape, pointed at one end and with an eye-loop at the other end, will function as a needle. This structure does not arise from the properties of steel, but is imposed from outside.
Water, water, everywhere
There is an amazing paradox at the heart of biology. Water is essential to life,16 but also toxicit splits up polymers by a process called hydrolysis, and that is why we use it to wash with. Hydrolysis is a constant hazard to origin-of-life experiments, but it is never a problem in cells, even though cells are mostly water (typically 6090%). In fact, special enzymes called hydrolases are required in order to get hydrolysis to occur at all in a cell.17 Why the difference? Water in a test tube is free and active, but water in cells is highly structured, via a process called hydrogen bonding, and this water-structure is comprehensively integrated with both the structure and function of all the cells macromolecules:
The hydrogen-bonding properties of water are crucial to [its] versatility, as they allow water to execute an intricate three-dimensional ballet, exchanging partners while retaining complex order and enduring effects. Water can generate small active clusters and macroscopic assemblies, which can both transmit and receive information on different scales.18
Water should actually be first on the list of molecules that need to be specially configured for life to function. Both the vast variety of specially structured macromolecules and their complementary hydrogen-bonded water structures are required at the same time. No origin-of-life experiment has ever addressed this problem.
Functionally integrated molecular machines
Figure 4. ATP synthase, a proton-powered molecular motor. Protons (+) from inside the cell (below) move through the stator mechanism embedded in the cell membrane and turn the rotor (top part) which adds inorganic phosphate (iP) to ADP to convert it to the high-energy state ATP.
It is not enough to have specifically structured, ultra-pure molecules, they must also be integrated together into useful machinery. A can of stewed fruit is fully of chemically pure and biologically useful molecules but it will never produce a living organism19 because the molecules have been disorganized in the cooking process. Cells contain an enormous array of useful molecular machinery. The average machine in a yeast cell contains 5 component proteins,20 and the most complexthe spliceosome, that orchestrates the reading of separated sections of genesconsists of about 300 proteins and several nucleic acids.21
One of the more spectacular machines is the tiny proton-powered motor that produces the universal energy molecule ATP (adenosine tri-phosphate) illustrated in Figure 4. When the motor spins one way, it takes energy from digested food and converts it into the high-energy ATP, and when the motor spins the other way, it breaks down the ATP in such a way that its energy is available for use by other metabolic processes.22
Comprehensively regulated, information-driven metabolic functions
It is still not enough to have spectacular molecular machinerythe various machines must be linked up into metabolic pathways and cycles that work towards an overall purpose. What purpose? This question is potentially far deeper than science can take us, but science certainly can ascertain that the immediate practical purpose of the amazing array of life structures is the survival of the individual and perpetuation of its species.23 Although we are still unravelling the way cells work, a good idea of the multiplicity of metabolic pathways and cycles can be found in the BioCyc collection. The majority of organisms so far examined, from microbes to humans, have between 1,000 and 10,000 different metabolic pathways.24 Nothing ever happens on its own in a cellsomething else always causes it, links with it or benefits or is affected by it. And all of these links are multi-step processes.
All of these links are also choreographed by informationa phenomenon that never occurs in the natural environment. At the bottom of the information hierarchy is the storage moleculeDNA. The double-helix of DNA is just right for genetic information storage, and this just right structure is beautifully matched by the elegance and efficiency of the code in which the cells information is written there.25 But it is not enough even to have an elegant just right information storage systemit must also contain information. And not just biologically relevant information, but brilliantly inventive strategies and tactics to guide living things through the extraordinary challenges they face in their seemingly miraculous achievements of metabolism and reproduction. Yet even ingenious strategies and tactics are not enough. Choreography requires an intricate and harmonious regulation of every aspect of life to make sure that the right things happen at the right time, and in the right sequence, otherwise chaos and death soon follow.
Recent discoveries show that biochemical molecules are constantly moving, and much of their amazing achievements are the result of choreographing all this constant and complex movement to accomplish things that static molecules could never achieve. Yet there is no spacious dance floor on which to choreograph the intense and lightning-fast (up to a million events per second for a single reaction26) activity of metabolism. A cell is more like a crowded dressing room than a dance floor, and in a show with a cast of millions!
Inversely causal meta-information
The Law of Cause and Effect is one of the most fundamental in all of science. Every scientific experiment is based upon the assumption that the end result of the experiment will be caused by something that happens during the experiment. If the experimenter is clever enough, then he/she might be able to identify that cause and describe how it produced that particular result or effect.
Causality always happens in a very specific orderthe cause always comes before the effect.27 That is, event A must always precede event B if A is to be considered as a possible cause of B. If we happened to observe that A occurred after B, then this would rule out A as a possible cause of B.
In living systems however, we see the universal occurrence of inverse causality. That is, an event A is the cause of event B, but A exists or occurs after B. It is easier to understand the biological situation if we refer to examples from human affairs. In economics, for example, it occurs when behaviour now, such as an investment decision, is influenced by some future event, such as an anticipated profit or loss. In psychology, a condition that exists now, such as anxiety or paranoia, may be caused by some anticipated future event, such as harm to ones person. In the field of occupational health and safety, workplace and environmental hazards can exert direct toxic effects upon workers (normal causality), but the anticipation or fear of potential future harm can also have an independently toxic effect (inverse causality).
Darwinian philosopher of science Michael Ruse recently noted that inverse causality is a universal feature of life,28 and his example was that stegosaur plates begin forming in the embryo but only have a function in the adultsupposedly for temperature control. However most biologists avoid admitting such things because it suggests that life might have purpose (a future goal), and this is strictly forbidden to materialists.
The most important example of inverse causality in living organisms is, of course, autopoiesis. We still do not fully understand it, but we do understand the most important aspects. Fundamentally, it is meta-informationit is information about information. It is the information that you need to have in order to keep the information you want to have to stay alive, and to ensure the survival of your descendants and the perpetuation of your species.
This last statement is the crux of this whole paper, so to illustrate its validity lets go back to the vacuum cleaner analogy. Lets imagine that one lineage of vacuum cleaners managed to reach the robotic, energy-independent stage, but lacked autopoiesis, while a second makes it all the way to autopoiesis. What is the difference between these vacuum cleaners? Both will function very well for a time. But as the Second Law of Thermodynamics begins to take its toll, components will begin to wear out, vibrations will loosen connections, dust will gather and short circuit the electronics, blockages in the suction passage will reduce cleaning efficiency, wheel axles will go rusty and make movement difficult, and so on. The former will eventually die and leave no descendants. The latter will repair itself, keep its components running smoothly and reproduce itself to ensure the perpetuation of its species.
But what happens if the environment changes and endangers the often-delicate metabolic cycles that real organisms depend upon? Differential reproduction is the solution. Evolutionists from Darwin to Dawkins have taken this amazing ability for granted, but it cannot be overlooked. There are elaborate systems in placefor example, the diploid to haploid transition in meiosis, the often extraordinary embellishments and rituals of sexual encounters, the huge number of permutations and combinations provided for in recombination mechanismsto provide offspring with variations from their parents that might prove of survival value. To complement these potentially dangerous deviations from the tried-and-true there are also firm conservation measures in place to protect the essential processes of life (e.g. the ability to read the DNA code and to translate it into metabolic action). None of this should ever be taken for granted.
In summary, autopoiesis is the informationand associated abilitiesthat you need to have (repair, maintenance and differential reproduction) in order to keep the information that you want to have (e.g. vacuum cleaner functionality) alive and in good condition to ensure both your survival and that of your descendants. In a parallel way, my humanity is what I personally value, so my autopoietic capability is the repair, maintenance and differential reproductive capacity that I have to maintain my humanity and to share it with my descendants. The egg and sperm that produced me knew nothing of this, but the information was encoded there and only reached fruition six decades later as I sit here writing thisthe inverse causality of autopoiesis.
There are three lines of reasoning pointing to the conclusion that autopoiesis provides a compelling case for the intelligent design of life.
If life began in some stepwise manner from a non-autopoietic beginning, then autopoiesis will be the end product of some long and blind process of accidents and natural selection. Such a result would mean that autopoiesis is not essential to life, so some organisms should exist that never attained it, and some organisms should have lost it by natural selection because they do not need it. However, autopoiesis is universal in all forms of life, so it must be essential. The argument from the Second Law of Thermodynamics as applied to the vacuum cleaner analogy also points to the same conclusion. Both arguments demonstrate that autopoiesis is required at the beginning for life to even exist and perpetuate itself, and could not have turned up at the end of some long naturalistic process. This conclusion is consistent with the experimental finding that origin-of-life projects which begin without autopoiesis as a pre-requisite have proved universally futile in achieving even the first step towards life.
Each level of the autopoietic hierarchy is dependent upon the one below it, but is causally separated from it by a Polanyi impossibility. Autopoiesis therefore cannot be reduced to any sequence of naturalistic causes.
There is an unbridgeable abyss below the autopoietic hierarchy, between the dirty, mass-action chemistry of the natural environment and the perfect purity, the single-molecule precision, the structural specificity, and the inversely causal integration, regulation, repair, maintenance and differential reproduction of life.
Quite frankly I never expected realistically to see any research that could settle the question in my lifetime.
But today I am wondering. What if, within the next 20 years we find life on Mars that has a completely different genetic code.
Any thoughts?
Are you serious/ He thinks clay crystals were hte first primitive ‘life replicators’? He seems to be arguing that soemthign just barely able ot keep itself alive, somethign so simple that it just barely ‘squeeked by’, hung aroudn self replicating until info just somehow arose?
cairns Argues that life could not have happened in soem primordial soup, but hten goes on to state it arose in clay crystals, and we’re to conclude that Cairns gave a serious hypothesis abotu hte rise of metainfo?
“”Cairns-Smith, long before the argument became popular, emphasized how
improbable it is that a molecule as high tech as RNA could have appeared de
novo on the primitive Earth. He proposed that the first form of life was a
self-replicating clay. He suggested that the synthesis of organic molecules
became part of the competitive strategy of the clay world and that the
inorganic genome was taken over by one of its organic creations.
Cairns-Smith postulate of an inorganic life form has failed to gather any
experimental support. The idea lives on in the limbo of uninvestigated
hypotheses.” (Leslie E. Orgel, The Origin of Life - A Review of Facts and
Speculations, Trends in Biochemical Sciences, vol 23, No 12, December 1998)”
Again though, it seems that you think that this paper we’re discussing mustn’t be important ‘because people might have thought about it earlier in some form or anther’? How would that fact undermine the importance of what’s being discussed in this thread and paper? Why would you even bring something liek that up? Does it refute the idea that hwat is discussed i nthis paper might be a big deal for Macroevolution? Not sure why you brought this up?
Not my problem.
If you are worried about FR becoming flooded with Creationists, you need to think again! Perhaps you would like to read what FR's founder Jim Robinson had to say on Creation/Evolution.
So.
Ben Stein is likewise a Creationist and produced a movie proclaiming so for erroneous reasons which have been disproven time after time, here and elsewhere. Moreover, he drew erroneous conclusions (which I've illustrated in previous posts in this forum). However, producing a movie or owning a website doesn't make either of them right. Once again personally, I find it incomprehensible that both their Faiths are so weak as to be so disturbed by a Fact.
Nonetheless globally, to take Conservatism down this path marginalizes it (and them) at best. I'm trying to save them from themselves.
If you don't think FR is the place for Creationists, perhaps you should find some other forum.
Wait a minute! I thought you just said this was Jim Robinson's website or do you pretend to speak for him?
Kinda pretentious dontchathink.
[[Not my problem.]]
Not your problem? you’re the oen that brought it up in the first place- What are you tryign to infer? That this paper is worthless becasuse someone made a bunch of assumptions about clay in the past & assumptions abotu how info ‘could have’ arisen? The fact is, Cairns didn’t as far as I know, concider the necessary 5 points of life- he just made assumptions about one level- suggesting thta it coudl transfer to hte next- The paper we’re discussing takes it to the IC 5 points of life
The hypothesis:
[[”Cycles of wetting and drying produced by the ocean tides cause stress in the clay that translated into energy. These cycles can link molecules of amino acids together by transferring energy .... The ions in clay act as catalysts to speed up chemical reactions ... when in the presence of clays some organic molecules can also perform functions like enzymes”7]]
http://www.studytoanswer.net/origins/abiogenesis.html
Swell- whatever, but how does that even remotely explain anythign liek the paper we’re discussing? Nor does his book I think cover the chemical purity discussed- correct me if I’m wrong
“While the clay particles do have an organisation from their crystal structures, this organisation is very simple. Meanwhile, even the simplest life form, and the biochemical molecules which enable this life to be life, are far more complex. Even the most basic of biochemical species which would be needed to lead up to the chemical evolution of life are far too complex to have been directed by a simple crystalline structure.”
Does Cairns address this in his book?
[[But today I am wondering. What if, within the next 20 years we find life on Mars that has a completely different genetic code.
Any thoughts?]]
wouldn’t be a problem at all-
That would be because he is more concerned with facts on the ground than with mental masturbation.
There's lots of productive research along these lines. Chemists aren't much interested in counting the reasons something can't be done.
Yeah, and my faith in conservatism is so weak I ban every liberal DU poster that signs up.
Oh, wait a minute. It’s not because of any lack of faith in conservatism, we zot DU posters simply because we don’t want our pages filled with repugnant leftist propaganda from obnoxious liberal trolls.
Somehow I expected more from you.
I would say one side is trying to come up with coherent explanations that fit together and take all known facts into account. I'll take your word for what your side is doing.
Likewise, I’m sure.
What’d you expect from a bitter redneck clinging to his religion and guns?
You don’t have to cling.
A savior's labors are seldom appreciated in his lifetime.
[[That would be because he is more concerned with facts on the ground]]
Correction- He’s more concerned with throwing God otu of the equation by inferring Nature-did-it than he is about looking at hte actual scientific facts that refute what he hypothesises
[[There’s lots of productive research along these lines.]]
Really? And they are comign up with? Nothing but assumptions that violate laws.
[[Chemists aren’t much interested in counting the reasons something can’t be done.]]
Apparently- too bad- objective science demands these be taken into concideration- infact ceded to when it becoems clear that it can’t be done.
Jim, your site is becoming a haven for an increasingly vociferous band of anti-science kooks. To the extent that your site is a voice of conservatism, this casts all of conservatism, and the Republican party, in an extremely bad light.
There was a time when scientists were proud to be members here. Many have been banned, and even more have left in disgust at the treatment accorded them. The moderation is extremely one-sided now; what will get a pro-science poster banned is lauded when posted by the anti-science crowd. It is common to see the anti-science crowd harass a pro-science poster until he breaks and utters an obscenity--then he is banned for life.
"Religion and guns" is not the issue, as most scientists are religious, and many are pro-gun.
The issue is a narrow fundamentalist brand of religion that is trying to become the face of the conservative movement. This site is increasingly influenced by this narrow movement such that scientists and a lot of conservatives are leaving in droves. I'm amazed that I have survived here this long--and I worked for Reagan in 1966, when most other posters here weren't even born!
Yet because I spent six years in graduate school studying evolution and related subjects, and post pro-science comments, I am labeled an "evo-cultist," and "evo-Nazi," and worse, and compared to Hitler and Stalin and communists--with the apparent approval of the moderators.
Jim, your site is headed for true kookdom, headed for the fringe. When folks like Cottshop become the face of science on your site, and folks like Radio Astronomer, a genuine conservative scientist, are banned, you have irreparably left the mainstream. I don't think that's a good way to win elections.
Whatever.
From a statement I posted a long time ago on our front page. I agree this site is probably too kooky for a whole lot of people, but we're not changing it. If you can't handle traditional American pro-Life, pro-God, pro-Liberty conservatism, you can always remove our bookmark from your list.
[[The moderation is extremely one-sided now; what will get a pro-science poster banned is lauded when posted by the anti-science crowd. It is common to see the anti-science crowd harass a pro-science poster until he breaks and utters an obscenity—then he is banned for life.]]
You know Coyoteman- this is a load of crap- There are MANY peopel that beleive in TOE here- and they get along just fine because they don’t engage in the childish rhettotic liek you just posted- You sir are cosntantly deriding Creationists and ID folks as being ‘antiscience’ DESPITE the fact that we’ve been presentign the SCIENCE that refutes the silyl claims you keep making- and apparently, that doesn’t sit well with you or others of your ilk who ‘left in disgust’- well too bad- You sir are one of hte worst here- yet one of hte first to jump up and down screaming about being ‘picked on’
IF you’d simply present your opinions WITHOUT CONSTATLY Belittling others, without CONSTANTLY deriding them, and putting htem down- You’d be taken much more seriously, and you’d be able to engage in civil discussions JUST LIKE ALL the other TOE supporters enjoy here!
Go cry me a river- Cripes!
[[Yet because I spent six years in graduate school studying evolution and related subjects, and post pro-science comments, I am labeled an “evo-cultist,” and “evo-Nazi,” and worse, and compared to Hitler and Stalin and communists—with the apparent approval of the moderators.]]
NO SIR! You are derided by others because you are snide, rude, and uncivil toweard them first! Anyoen with half an iota of common sense can go through your posts and discover exactly what I am talking about and see for themselves! Don’t you accuse others of what you yourself are guilty of first sir!
If other scientists want to ‘leave in disgust’ then it is simpyl because they can’t handle havign hteir scientific claism exposed to hte public, and it’s because they don’t like claiming somethign and hten gettign challenged on it! Plain nd simple!
[[When folks like Cottshop become the face of science on your site,]]
Gee- thanks- but htere are people far more deserving of that title than myself- I only call the facts liek I see them- and apparnetly that doesn’t sit well with you
We’ve had a VERY civil discussion here for nearly 1000 posts now, UNTIL you and Dr.Mike showed up with your petty claims, false accusations, and irrelevent spam tryuing to derail this htread- and you are hte one crying about not being treatedright? The fact is you’re upset abotu not beign able to post TOE propoganda wihtout havign to face challenges to it, and when challenged, you break into your usual antiChristian crap routine time and itme again- and when htat doesn’t work, you appeal to hte owner with yet more false claims and petty false insults about Christian science?
My hearts bleeds for you.
If the genetic code is widely different, it'll be considered evidence that a Creator didn't do it cause life adapted to fit the different environment.
If it's not wildly different, then it'll be considered more supporting evidence that the common aspects of life can easily arise in other environments.
It'll be *Heads I win, tails you lose*.
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