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To: lifebygrace
I am not at all unique in my ability to observe the obvious, and I am hardly the first person with a natural sciences background to criticize the notion of evolution.

Nor are you the first person on these threads to make a lonng post without saying anything.

Lets have your "obvious" list of structures that couldn't have arisen through evolution.

576 posted on 06/30/2007 3:41:44 PM PDT by js1138
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To: js1138
It’s not just about structures - batting back and forth “he said, she said” arguments over flagellum or eyeballs or irreducible complexities doesn’t seem to ever advance a discussion. Perhaps more useful is a more clear list of what I think the major “non starters” are, based on my own experiences and reading of the relevant literature.

As to your complaint about “long posts”: I'm sorry but this one is quite long, too. For my part, I’ve little time for posts so I prefer to be thorough the first time. Further, this is an important topic and I’m not interested in a conversation that needs to be cut into bite-sized pieces. Unless I’ve overestimated you, I suspect you can handle it.

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In no particular order, here are several observations that I believe make the current body of evolutionary theory flawed and the notion of “evolution by random forces” a “non-starter”:

1. The problem of abiogenesis.

There are several well-known experiments that have shown that it is possible to produce amino acids -- and therefore the building blocks of life -- in lab conditions. However, all such efforts have required vigorous controls; thus, even the most successful “origin of life” experiments have really told us nothing about what happens under natural conditions. Furthermore, none has successfully dealt with the issue of “chirality”. Finally, while many have tried, no one has developed a plausible explanation for proto-cellular development that would account for the leap from non-life to life while still remaining within the bounds of known physical and chemical laws.

2. The problem of “vanishingly small” chances.

Computer analysis using information theory has shown that the probability of evolution by chance processes is essentially zero, no matter how long the time scale. The work of Murray Eden, Marcel Schutzenberger, and others, as presented at the Wistar Institute in 1966, all showed quite clearly that the complexity of the biochemical world could not have originated by chance even within the time span of ten billion years. These findings have since been refined and confirmed by application of the first and second laws of thermodynamics to living systems. As Ilya Prigogine, the Nobel Prize-winning thermodynamicist, put it: “The probability that at ordinary temperatures a macroscopic number of molecules is assembled to give rise to the highly ordered structures and to the coordinated functions characterizing living organisms is vanishingly small.”Let me repeat that: Vanishingly. Small.

3. The problem of DNA

Naturalism and evolutionary theory require that the complex-yet-orderly arrangement of DNA information that comprises living things must arise by natural forces alone, and that it can be explained only in terms of physical-chemical laws. But information theory has consistently shown that both chance and law lead to structures with low information content, whereas DNA has very high information content. In fact, the amount of biological information contained in DNA that is required to construct even a simple organism is staggering. Studies using information theory have shown that it would be impossible -- again, in the absence of vigorous external control -- to construct a simple set of instructions for synthesizing even the simplest form of bacteria. Essentially, there are no known natural laws capable of creating a structure like DNA with high information content.

4. The problem of variation.

Classical Darwinism asserts that the mechanism of natural selection acting on random variation suffices to explain the diversity and complexity of life. However, it is a commonly accepted observation that variation does not in fact produce novel types of organisms (this includes selective breeding), and that Darwinian natural selection cannot account for macro-scale complexity. Further, it is also accepted that all variation occurs around a mean, organisms tend to stay true to type, and species tend to appear in the fossil record fully formed and unchanged from their modern counterparts.

5. The problem with relying on mutation.

As I just noted, it is commonly accepted that genetic variation cannot account for major change because variation is simply the reordering of material that is already present -- e.g. a child will always tends to resemble its parents. The only new source of genetic variation is, thus, mutation. There are two major problems with invoking mutation as the primary causal agent driving the massive amounts of change that would be required to progress from simple unicellular to complex multicellular life forms: 1) mutation is quite rare; 2) while mutation may sometimes be neutral in its effect, it is seldom ever beneficial. Mutation -- a chance, rare, often fatally flawed event -- cannot account for the diversity and complexity of life forms living today or in the fossil record. Yet it is still considered to be the spark that ignites the evolutionary engine.

6. The Cambrian problem.

Neo-Darwinism and punctuated equilibrium have each tried to accommodate the above observations via various contortions of natural selection and other principles of classical Darwinism. But consideration of the Cambrian explosion alone repudiates both the claims of neo-Darwinism and punctuated equilibrium. Cambrian fossils have no transitional intermediates linking them to previous time periods, and all display morphological features that have no clear precedent. Considering that the Cambrian fossil record includes the 1st appearance of over 40 separate phyla (the highest taxa in the animal kingdom) and accounts for approximately 2/3 of the body plans seen on earth today, this is a substantial problem for evolutionary theory.

7. The problem of non-evolution.

There are hundreds of known examples of living fossils. These organisms represent both warm- and cold-blooded animals, plants (including both angiosperms and gymnosperms), and insects, and they occupy a wide range of niches. The ancestors of these organisms did encounter events and conditions that should have triggered at least one or more of the 4 mechanisms that drive all evolutionary change. For example, the KT boundary event, various glacial and interglacial periods, continental drift, intercontinental changes in habitat and macro-/micro-scale climate resulting from ongoing orogenic activity and changing hydrology are all events that these “living fossils” have survived without any change. Yet, they are all events that had impact across multiple spatial and temporal scales and which should have produced countless opportunities for migration, genetic drift, and/or natural selection to have occurred. But, the ancestral chain of hundreds of organisms today went through those occurrences completely unchanged.

8. The problem of missing miscreants in the family tree

From a common ancestor we are to believe we now have oak trees, bacteria, fish, and people. Ignoring the massive pileup of improbabilities resulting from the above observations for a moment, such a feat would have required an exponential increase in complex life forms. Given the importance of mutation in the process, such expansion should have been accompanied by a tremendous number of “false starts” -- those necessary intermediary organisms with mutant features that didn’t survive the “selective cut”. In every single branch of the phylogenetic tree there should be a related chain of unsuccessful false starts and miscreants somewhere in the fossil record. To date, no such evidence has been found.

9. The problem of fitness.

Some of the living fossil species have had hundreds of millions of years to deal with the challenge of “survival of the fittest”. And yet, some of these species are hardly the “fittest” of their group. For example, the Quercus genus is known for its ability to suppress the growth of other nearby species. After 100 min years, “survival of the fittest” would predict that the oak trees reproducing today would be as fit as they could be -- meaning, they would not only be efficient at suppressing other plant growth, but they would also be extremely efficient in their reproductive strategy and therefore dominant where ever they occur. But oaks are actually not very good competitors and in healthy plant communities, they exist in mixed settings not huge monocultures.

10. The problem of the Ouroboros.

Finally, functional relationships between form and external environment -- for example, mimicry and camouflage -- are all over creation, but they cannot be accounted for by mutation (which, again, is rare, accidental, and usually harmful). There is plenty of discussion out there about the role of co-evolution and/or convergent evolutionary processes in explaining these phenomena, but despite lofty language they do come up short. Achievement of, for example, protocryptic character requires an “awareness” of external environment and control over genetic expression of expressed morphology and other features that is impossible (not mention silly to suggest unless you’re into biosemiotics) through mutation. The character of these relationships precludes their development from a chaotic and random process that is centered at the genetic level and which is under the control of nothing more than chance mutation and which has no awareness, either of the external environment or of the impact of its own activity on the organism.

So, for all that I expect complete disagreement from you given that we are diametrically opposed on the most basic issues, I suppose there’s a list for you.

577 posted on 07/04/2007 11:20:57 AM PDT by lifebygrace
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