Posted on 05/25/2005 9:30:54 AM PDT by Michael_Michaelangelo
If you have been following the intelligent design (ID) controversy, you could paper a wall with announcements by boffins that ID makes no testable or falsifiable predictions. Of course, many of the same people do their best to keep ID-friendly papers out of journals. But now and then they slip up, and a paper gets published.
In his recent paper in Rivista di Biologia, Do Centrioles Generate a Polar Ejection Force?, Jonathan Wells makes the following testable predictions regarding his hypothesis that the centrioles of cells generate a polar ejection force:
Do Centrioles Generate a Polar Ejection Force?
A. It [the hypothesis] predicts that spindle microtubules in animal cells begin to oscillate at the beginning of prometaphase, and that those oscillations rapidly accelerate until metaphase, at which point they decelerate or cease. By metaphase the oscillations may be of such high frequency that they would be difficult to detect, but the lower frequency oscillations early in prometaphase should be detectable by immunofluorescence microscopy and high-speed camera technology.
B. It predicts that the centriole contains a helical pump powered by dynein molecules located in the inner wall of its lumen. Improved imaging techniques may make it possible to elucidate the complex internal structure of centrioles, characterizing more fully the helical structures in their lumens and determining the precise localization of dynein in their inner walls.
C. It predicts that the polar ejection force is regulated, at least in part, by intracellular calcium concentration. It should be possible to test this by observing chromosome behavior in the spindles of dividing animal cells while artificially raising the concentration of intracellular calcium during prometaphase or blocking its rise at the beginning of anaphase.
He adds, If the hypothesis presented here withstands these and other experimental tests, then it may contribute to a better understanding not only of cell division, but also of cancer.
Wells makes clear in the paper that his assumptions are based on the thesis that the centriole is a designed object, like a machine, and should be studied as one. Asked whether he considers the centriole irreducibly complex, he told me, I suspect so, but I don't know. The fact that there seem to be no intermediates (you either have a working centriole, or you don't) strongly suggests irreducible complexity, but people would have to do experiments similar to those done on the bacterial flagellum (i.e., removing parts to find out if they're needed for function) to find out for sure.
About getting his paper published, Wells noted that Rivista di Biologia/Biology Forum is an English-language peer-reviewed journal published in Italy, whose editor (Giuseppe Sermonti) is a geneticist critical of Darwinism.
Yo, Darwinists. Get hold of that editors e-mail address and start showering him with abuse immediately. Why should an American, Richard Sternberg, be the only one who has to apply to the government to stop the persecution? You shouldnt let the Americans be first at everything; it looks bad.
ID Ping
When was the last time an evolutionist made a testable prediction?
Suppose experiment confirms Wells's hypothesis; why should one conclude that the centriole is a designed object? Why not just conclude that nature has hit upon a near-optimum mechanism for the centriole's action?
Thanks for the ping!
Can you test for that?
Did you read the link?
A serious case of conclusions preceding facts.
All the damned time. Just how do you excuse your arrogant ignorance on this topic?
A wise man once said, "never argue with a fool, bet him money". I'll bet you $1000 that I can post over a two dozen testable predictions made by "evolutionists" in April 2005 alone. Please, oh please, take me up on this bet.
I await your response.
But the testable predictions have no bearing on ID vs evolution. They are purely dynamic and address molecular questions.
In other words if the same "testable predictions" were made based on "the thesis the centriole is an evolved object" it would make no difference to experimental design and techniques used to test the hypothesis.
It's a purely biochemical/molecular question.
One wouldn't. The point is that if one clears away all the smoke, obsuscation over definitions, and the like, both ID and Darwinism (note, not evolution, the explanatory program proposed by Darwin and its intellectual descendants) are really what Popper originally characterized evolutionary biology as: metaphysical research programs, frameworks for testable theories, but not testable theories themselves. (And notice Popper's 'recantation' was subtle: he said natural selection 'could be' so formulated as to be far from tautological. The observable fact, evident from the polemics surrounding evolution and the facility with which evolutionary biologists generate 'just so stories' to explain any observable trait, and retreat to 'it must have provided an as-yet-ill-understood adaptive advantage' when their skill at generating such post-hoc explanations fails, is that natural selection is not so formulated, and is invoked in its tautological, and thus unfalsifiable, form.)
The reported research provides an example of a testable hypothesis initially formulated on the basis of the currently disfavored metaphysical research program, that's all. It no more proves ID in any global sense than a neat account of how a trait could have arisen by adaptation to a hypothesized environment proves Darwinism.
How much should we bet that you, with your great knowlege and wisdom, will never win the Origin of Life prize? Shouldn't be much to it, since science already knows how the universe ticks without intelligent design.
Line of Evidence |
Prediction of descent |
Prediction from design |
Data |
Best explaining theory: |
1. Biochemical complexity |
High information content machine-like irreducibly complex structures will NOT be found. |
High information content machine-like irreducibly complex structures will be found. |
High information content machine-like irreducibly complex structures are commonly found. |
Design. |
2. Fossil Record |
Forms will appear in the fossil record as a gradual progression with transitional series. |
Forms will appear in the fossil record suddenly and without any precursors. |
Forms tend to appear in the fossil record suddenly and without any precursors. |
Design. |
3. Distribution of Molecular and Morphological Characteristics |
Genes and functional parts will reflect those inherited through ancestry, and are only shared by related organisms. |
Genes and functional parts will be re-used in different unrelated organisms. |
Genes and functional parts often are not distributed in a manner predicted by ancestry, and are often found in clearly unrelated organisms. |
Design. |
4. Genetic Code |
The genetic code will contain much discarded genetic baggage code or functionless "junk DNA." |
The genetic code will NOT contain much discarded genetic baggage code or functionless "junk DNA." |
Increased knowledge of genetices has created a strong trend towards functionality for "junk-DNA"; examples of DNA of unknown function persist, but function can be expected or explained under a design pardigm. |
Design. |
I don't see it, just how does this molecular analysis hypothesis falsify ID?
Because that is just-so.
So, in other words, "descent" has made numerous predictions, none of which have been borne out.
entertainment ping
Thanks, but it's low-grade stuff. No ping to the evolution list.
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