Allen MacNeill: RM & NS: The Creationist and ID Strawman

Posted 2 November 2007 by

Allen MacNeill has posted his long promised overview of evolutionary mechanisms of variation in RM & NS: The Creationist and ID Strawman

Creationists and supporters of Intelligent Design Theory ("IDers") are fond of erecting a strawman in place of evolutionary theory, one that they can then dismantle and point to as "proof" that their "theories" are superior. Perhaps the most egregious such strawman is encapsulated in the phrase "RM & NS". Short for "random mutation and natural selection", RM & NS is held up by creationists and IDers as the core of evolutionary biology, and are then attacked as insufficient to explain the diversity of life and (in the case of some IDers) its origin and evolution as well. Evolutionary biologists know that this is a classical "strawman" argument, because we know that evolution is not simply reducible to "random mutation and natural selection" alone. Indeed, Darwin himself proposed that natural selection was the best explanation for the origin of adaptations, and that natural selection itself was an outcome that necessarily arises from three prerequisites: • variation (between individuals in populations),
• inheritance (of traits from parents to offspring), and
• fecundity (reproduction resulting in more offspring than necessary for replacement).
Given these prerequisites, some individuals survive and reproduce more often than others, and hence their characteristics become more common in their populations over time.

Allen lists 43 sources of variation (as a minimum) and "at least three different processes that result from them: natural selection, sexual selection, and random genetic drift."

67 Comments

PvM · 2 November 2007

Also enjoy the comments by Ron Cote a self proclaimed born again creationist.

Stanton · 3 November 2007

I'm surprised that that lying twit hasn't tried to bring up how Hitler was, allegedly, a Pagan Evolutionist in order to support his arguments.

Mark Barton · 3 November 2007

As a physicist who follows this debate and is suitably sympathetic to the science side, I've got to say that this is a really stupid counter argument, or at least a really stupid presentation. It comes across as jargon gotcha - of crucifying the layman for misusing some terminology or oversimplifying some point without explaining why whatever subtle distinction is at issue actually matters, as a substitute or evasion for presenting a substantive argument. It's argumentum ad put down.

The problem is that the usual focus on mutations in the narrowest sense, i.e., point mutations, is just a conveniently simple toy model that illustrates a much more general argument: that it's difficult for many people to see how lots of small changes, many of which are destructive, could possibly add up gradually to something complicated and rich. It's a conveniently simple toy model for both sides, biologists have spent a lot of time discussing it in the creation-evolution battle, and that's not unreasonable, because it _does_ illustrate many of the important issues. What _is_ unreasonable is to suddenly revoke the tacit agreement to talk about the toy model without explaining why all the previously glossed-over complexity matters. And it's _not_ obvious. At first sight, the same basic argument seems to apply equally to all these other areas of change: it's hard to see how lots of small changes, many of which are destructive, could possibly add up gradually to something complicated and rich.

Now having done a fair bit of reading in the area, I've been exposed to explanations of how some of these extra mechanisms speed things up, and I think I can guess some others. But I'm not an expert and I can't help reacting very negatively to the apparent suggestion that I'm stupid if it's not obvious to me why all this extra bafflegab is important. How it comes across to someone less well-read and less charitably inclined can only be imagined.

JimV · 3 November 2007

Mark Barton: speaking as someone less qualified in science (Master's in Mechanical Engineering), I have learned a lot from articles like the subject one. I also do not consider myself stupid, but see such articles not as an attack on stupidity, but on ignorance. My formal and informal education up to my mid 20's somehow left me with the impression that mutations are mainly if not solely due to ionizing radiation, such as cosmic rays and the residue of nuclear tests. I now know that mutations often occur chemically during the process of forming gametes, and that a typical person has 200-400 mutations from the genetic material of his or her parents. It seems to me this can make a vast difference in one's comprehension and appreciation of the ToE.

Adam Ierymenko · 3 November 2007

Another good point to bring up is second-order phenomena like the evolution of evolvability, optimization of genetic architecture, etc.

Calling evolutionary biology "Darwinism" is like calling physics "Newtonism."

Vince · 3 November 2007

Please allow me to paraphrase Mike Barton's argument: "As a biologist who follows the Big Bang debate and is suitably sympathetic to the science side, I’ve got to say that the typical physicist's argument is a really stupid counter argument, or at least a really stupid presentation. It comes across as jargon gotcha - of crucifying the layman for misusing some terminology or oversimplifying some point without explaining why whatever subtle distinction is at issue actually matters, as a substitute or evasion for presenting a substantive argument. It’s argumentum ad put down.

The problem is that the usual focus on time in the narrowest sense, i.e., milliseconds, is just a conveniently simple toy model that illustrates a much more general argument: that it’s difficult for many people to see how lots of important things, many of which are destructive, could possibly add up gradually to something complicated and rich. It’s a conveniently simple toy model for both sides, physicists have spent a lot of time discussing it in the creation-evolution battle, and that’s not unreasonable, because it _does_ illustrate many of the important issues. What _is_ unreasonable is to suddenly revoke the tacit agreement to talk about the toy model without explaining why all the previously glossed-over detail matters. And it’s _not_ obvious. At first sight, the same basic argument seems to apply equally to all these other areas of change: it’s hard to see how lots of small changes occurring in less than a second, many of which are destructive, could possibly add up gradually to something complicated and rich.

Now having done a fair bit of reading in the area, I’ve been exposed to explanations of how some of the destructive things work, and I think I can guess some others. But I’m not an expert and I can’t help reacting very negatively to the apparent suggestion that I’m stupid if it’s not obvious to me why all this physical bafflegab is important. How it comes across to someone less well-read and less charitably inclined can only be imagined."

Tex · 3 November 2007

I am a biologist, but I really don't see how MacNeill's list serves as a counter argument to anything. Almost everything on the list, with the very important exception of recombination events, is a consequence of random mutations. And on a gross scale, recombination is close enough to a random event for most evolutionary discussions.

For example, consider the combining of two formerly separate biochemical pathways. How could this occur without a random mutation that would let an enzyme in one pathway now use a product or intermediate from the other?

How could a transcription factor change its affinity for its target site without a random mutation somewhere? The mutation could be in the TF gene itself, or in its target site, or in a gene for a protein that modifies it, but there has to be a mutation somewhere. Even if you postulate epigenetic changes, something, most likely a random mutation, had to have happened to change this pattern.

Combining of two chromosomes, as apparently happened along the way from our ape-like ancestors is not a single point mutation, but it is still a random mutation event.

I agree with the point I think Mark Barton was trying to make. Saying that all random mutations are single point mutations is simply setting up another strawman.

PvM · 3 November 2007

I agree with the point I think Mark Barton was trying to make. Saying that all random mutations are single point mutations is simply setting up another strawman.

Perhaps, but few creationists realize the richness of the sources of variation in the genome. It's maintenance of variation that facilitates evolution

PvM · 3 November 2007

Allen's comments may sound like nitpicking but they go to the heart of the controversy. Evolution is not about mutations followed by selection, it is about maintaining variation in the population on which selection (or chance) can act. This is why near-neutral mutations can be of significant relevance as they can be a source of variation without much of a fitness cost.

Another example is gene duplication which helps understand how mutations can lead to new functions while maintaining the original function. It's not just single point mutations that accumulate in a gene. Many of the misunderstandings from creationists about mutations I believe can be tracked back to an adherence to the simplistic models of mutation rather than a focus on variation.

Joshua Zelinsky · 3 November 2007

Barton does make a good point. However there is at least one critical problem with it: The ID proponents claim to know what they are talking about. It is hard to give them the benefit of not "crucifying the layman" while at the same time expecting people to take their claim of knowledge seriously. They can't have it both ways. Either they know what they are talking about and are constructing strawmen or they don't know what they are talking about.

raven · 3 November 2007

wikipedia: In biology, mutations are changes to the base pair sequence of the genetic material of an organism.
Seems to me that most of Allen's sources of variation are just various sorts of mutations. Mutation has never meant just point mutations. Even chromosomal fusions would fall under the definition of mutation. His extension of natural selection to NS, sexual selection, drift is a little more understandable. I would add so called artificial selection to the list. We have domesticated animals and plants recently to our purposes but it is still evolution, change in life through time. Mostly this is a matter of semantics, viewpoint, and the fine points. There are some higher order phenomena such as species selection that make macroevolution a little more complicated than microevolution but these are additions not contradictions. And sexual recombination is a critical factor which is probably why it even exists. The basics are still RM + NS. I'm a real fan of KIS, Keep It Simple when explaining or considering evolution. Many people are intimidated by evolution, considering it some esoteric theory only understandable by effete intellectuals. The reality is that the basics are simple, intuitive and understandable by anyone of normal intelligence.

PvM · 3 November 2007

The basics are still RM + NS. I’m a real fan of KIS, Keep It Simple when explaining or considering evolution. Many people are intimidated by evolution, considering it some esoteric theory only understandable by effete intellectuals. The reality is that the basics are simple, intuitive and understandable by anyone of normal intelligence.

Why not variation and selection? Far simpler a concept

Nigel D · 3 November 2007

I think (as a biochemist) that the key points to get across to the lay audience are thus:

(1) that random mutations come in many different varieties (point mutation, frame shift, duplication, insertion, deletion etc.); and

(2) that mutations are occuring all the time at a modest rate, and thus any population of organisms will almost never contain two individuals that are genetically identical (assuming sexual reproduction, since it is quite easy to obtain a colony of bacteria, for example, that are essentially genetically identical).

I agree that needless use of technical jargon should be avoided, but I also firmly believe that those who set themselves up to criticise evolutionary theory should damn well learn all about it first (plus I believe they should criticise it openly and honestly, which is something we very rarely see).

Nigel D · 3 November 2007

OK, PvM, variation & selection are simpler still. I think we cross-posted, as 'twere.

PvM · 3 November 2007

I think the point that I missed to emphasize is that it is not mutation but variation which is what drives evolution. Anything that increases the variation is relevant.
Mutations in my opinion raise a spector of a response to a need rather than the source of variations. And evolution has a rich source of variations.

Torbjörn Larsson, OM · 3 November 2007

Pedagogy is an ongoing concern, and I think Barton's point is among those to be considered. Another point often raised is that there may to much effort devoted to discuss why creationists viewpoint is wrong. (Who would discuss astronomy from an astrology viewpoint today?) But it is also good to acknowledge that one learn by continually revisiting a subject beyond the minimal toy models available. I'm partial to the constraining guideline that Larry Moran has discussed, a minimal definition of evolution:
Evolution is a process that results in heritable changes in a population spread over many generations.
The idea is that any toy model or larger definition has to capture this to some extent or it isn't valid. For example, both "common descent" as describing the observed process and "hereditary variation with selection" as describing a general mechanism or set of specific mechanisms do so. (While we immediately can see that "variation & selection" is an implicit description, contingent on that we recognize that we are discussing evolution.) Moran adds IMHO another good perspective on why "framing" or constraining definitions are valuable when considering a complicated and many-faceted process:
The amazing thing about the minimal definition of biological evolution is that it doesn't carry any baggage concerning the history of life or its future. As soon as we try to define evolution in terms of the historical record, we run into all kinds of problems because we confuse evolution as a process with evolution as a history of life.

Robert Miller · 3 November 2007

I have a challenge for the members of the Panda's Thumb community. Please find a single factual error in Conservapedia's article on the theory of evolution which is very critical of the evolutionary position. The article is located here: http://www.conservapedia.com/Theory_of_evolution

I don't believe you will be able to find a single factual error in the Conservapedia theory of evolution article.

Braxton Thomason · 3 November 2007

Ohh, that's too easy. Here.
The theory of evolution posits a process of self-transformation from simple life forms to more complex life, which has never been observed or duplicated in a laboratory forms
I take issue with "self-transformation". What does that mean? Would a biologist use the term? Simple to complex? Sometimes, but not always. What do those terms mean? Certainly we see a difference in life from the past to the future, and the biosphere as a whole has become more complex (in terms of number of species, at least from 2 billion years ago). To top it off, the evolution/speciation/etc have been observed many, many, many times in a laboratory. Come on, get real. "single factual error"? How about 3 in one sentence?

PvM · 3 November 2007

Yes, Braxton, that is a good catch. In fact, evolution does not posit a process from simple to complex life. And while many aspects of evolution have been observed in a laboratory, there are many more ways to study evolution.

PvM · 3 November 2007

More errors at Conservapedia (what a joke)

Karl Popper, a leading philosopher of science and originator of the falsifiability as a criterion of demarcation of science from nonscience, stated that Darwinism is not a testable scientific theory, but a metaphysical research programme

He did state this however he revised his views. Why is this not reported? See for instance this link I am sure that Mark Barton Robert Miller will insist that Conservapedia revises their webpage. If not, we can always start a point by point rebuttal to showcase the ignorance of 'conservapedia'

guppy · 3 November 2007

My impression is that the 'lay' view of a major evolutionary change goes like this : you have a bunch of organisms of one species going along their merry way - suddenly one of them has a mutant child with a thousandth of an eye, that child has another mutant with another milli-improvement and a many descendants later... full binocular vision! Stated like this of course it seems quite implausible that a thousand random mutations could string themselves together in a chain.

So maybe we should emphasize that a single mutation can have very subtle effects on a gene via its interactions with other genes and proteins. And plenty of these mutations are always present in a population, and can be acted on by selection.

Richard Simons · 3 November 2007

What struck me about Conservapedia’s article on the theory of evolution is that there is no outline of the theory of evolution. How could they possibly have a web page about the TOE without describing what it is?

The article has no reference to the nested hierarchy of life, probably the strongest evidence and no mention of pseudogenes. In fact, the whole thing reads like a collection of talking points from AnswersinGenesis.

I agree that it is very carefully written to try to avoid actual lies. However, it is full of statements like "Karl Popper, a leading philosopher of science and originator of the falsifiability as a criterion of demarcation of science from nonscience, stated that Darwinism is not a testable scientific theory, but a metaphysical research programme."

It could well be true that Popper said that, however he was wrong to say it is not testable.

Another statement that caught my eye was "The great intellectuals in history such as Archimedes, Aristotle, St. Augustine, Francis Bacon, Isaac Newton and Lord Kelvin did not propose an evolutionary process for a species to transform into a more complex version." Again, true. They also did not propose a process for transforming energy from uranium into electricity or a scheme for turning moving pictures of a cartoon mouse into money. So what?

I notice that the article is full of quotes and quotes of quotes, and even quotes of quotes of quotes (Stephen Caesar quoting SJ Gould quoting Michael Richardson who apparently said something off the top of his head). There seems to be a large segment of the population that does not realise that quotes, especially if second and third hand, are not evidence.

The whole piece just reinforces my view that Conservapedia is not to be taken seriously.

Mark Barton · 3 November 2007

Vince: your retooling of my argument is pitch-perfect except for one thing - as far as I can see it doesn't refer to any actual argument being made by physicists in the creation-evolution debate. Thus I don't see the point. If we _are_ doing something comparable - entering into extended discussion of a toy model under an implied understanding that it's sufficiently representative to make key points and then suddenly trashing it as the most ignorant straw man without explaining why the extra complexity is important, then please me know - we should stop.

Mark Barton · 3 November 2007

JimV: I have no problem with the information that the linked article presented. On the contrary, it was very interesting. It's just rather offensive as a counter-argument to a supposed straw man, because the view of evolution that it criticizes is simply not a straw man - biologists do actually talk like that, at least to lay-people. See for example, the #1 go-to site for explaining evolution to non-biologists:

"The theory of evolution includes a number of ideas that some people find difficult to accept intuitively. One of the most difficult seems to be the notion that the intricate and interdependent structures we observe in modern plants and animals arose through random genetic mutations selected over time." ( http://www.talkorigins.org/faqs/fitness/ )

Now very possibly that wording is being offered in the spirit of a physicist's toy model and all manner of fineprint is implied. But once biologists, collectively, have put it out there in those terms they can't complain about straw men - it's the biologists' formulation. And they can't even complain about ignorance unless they explain why the extra detail matters.

raven · 3 November 2007

The theory of evolution posits a process of self-transformation from simple life forms to more complex life, which has never been observed or duplicated in a laboratory forms.
Technically true but not really true. The intent is clear, to mislead. Not that conservapedia has ever done anything else or will ever do anything else. Much of the earth is covered with sedimentary rocks miles deep in places, some of which contain fossils and which stretch back 3.6 billion years. The exact number of fossils is anyone's guess but must be in the billions or trillions. We have already dug up a large number, must be in the millions at least. There is an extensive history of life documented therein, extending from the age of prokaryoes, through single celled eukaryotes and ending up with us. That we haven't evolved a new phylum in the laboratory is irrelevant. When a process takes millions to hundreds of millions of years, we wouldn't expect to see anything on the order of years or decades. We have yet to create a black hole, pulsar, or Big Bang in the lab either. That is a good thing, hard to write it up for Nature after the fact. No one doubts they exist except a few cultists who believe the universe is 6,000 years old. PS No one has seen god is a lab, or anywhere else for a while either. Nor have they been able to create one. Does this mean he doesn't exist.

raven · 3 November 2007

The theory of god posits an omniscient being who creates worlds in 6 days. Who occasionally gets upset with his creations and murders almost all of them. Which has never been observed or duplicated in a laboratory forms.
Interesting, conservapedia has disproved the existence of god. I expect this entry above to appear any minute. And everyone can sleep in tomorrow morning.

raaven · 3 November 2007

agree that it is very carefully written to try to avoid actual lies. However, it is full of statements like “Karl Popper, a leading philosopher of science and originator of the falsifiability as a criterion of demarcation of science from nonscience, stated that Darwinism is not a testable scientific theory, but a metaphysical research programme.”
Just more creo lies. Popper did say that. Later on he changed his mind and said evolution was falsifiable. Standard quote mining, the refuge of the dishonest.

raven · 3 November 2007

Must be liar saturday. That creos can only lie shows how bankrupt they and their theory are.
Talkorigins.org. Claim CA211.1: According to philosopher of science Sir Karl Popper, a theory must be falsifiable to qualify as scientific. Popper (1976, 151) said, "Darwinism is not a testable scientific theory but a metaphysical research programme." Source: Kranz, Russell. n.d. Karl Popper's challenge. http://www.creationism.org/csshs/v02n4p20.htm Response: Popper's statement of nonfalsifiability was pretty mild, not as extensive as it is often taken. He applied it only to natural selection, not evolution as a whole, and he allowed that some testing of natural selection was possible, just not a significant amount. Moreover, he said that natural selection is a useful theory. A "metaphysical research programme" was to him not a bad thing; it is an essential part of science, as it guides productive research by suggesting predictions. He said of Darwinism, And yet, the theory is invaluable. I do not see how, without it, our knowledge could have grown as it has done since Darwin. In trying to explain experiments with bacteria which become adapted to, say, penicillin, it is quite clear that we are greatly helped by the theory of natural selection. Although it is metaphysical, it sheds much light upon very concrete and very practical researches. It allows us to study adaptation to a new environment (such as a penicillin-infested environment) in a rational way: it suggests the existence of a mechanism of adaptation, and it allows us even to study in detail the mechanism at work. And it is the only theory so far which does all that. (Popper 1976, 171-172) Finally, Popper notes that theism as an explanation of adaptation "was worse than an open admission of failure, for it created the impression that an ultimate explanation had been reached" (Popper 1976, 172). Popper later changed his mind and recognized that natural selection is testable. Here is an excerpt from a later writing on "Natural Selection and Its Scientific Status" (Miller 1985, 241-243; see also Popper 1978): When speaking here of Darwinism, I shall speak always of today's theory - that is Darwin's own theory of natural selection supported by the Mendelian theory of heredity, by the theory of the mutation and recombination of genes in a gene pool, and by the decoded genetic code. This is an immensely impressive and powerful theory. The claim that it completely explains evolution is of course a bold claim, and very far from being established. All scientific theories are conjectures, even those that have successfully passed many severe and varied tests. The Mendelian underpinning of modern Darwinism has been well tested, and so has the theory of evolution which says that all terrestrial life has evolved from a few primitive unicellular organisms, possibly even from one single organism. However, Darwin's own most important contribution to the theory of evolution, his theory of natural selection, is difficult to test. There are some tests, even some experimental tests; and in some cases, such as the famous phenomenon known as 'industrial melanism', we can observe natural selection happening under our very eyes, as it were. Nevertheless, really severe tests of the theory of natural selection are hard to come by, much more so than tests of otherwise comparable theories in physics or chemistry. The fact that the theory of natural selection is difficult to test has led some people, anti-Darwinists and even some great Darwinists, to claim that it is a tautology [see CA500]. A tautology like 'All tables are tables' is not, of course, testable; nor has it any explanatory power. It is therefore most surprising to hear that some of the greatest contemporary Darwinists themselves formulate the theory in such a way that it amounts to the tautology that those organisms that leave most offspring leave most offspring. C. H. Waddington says somewhere (and he defends this view in other places) that 'Natural selection . . . turns out ... to be a tautology' ..4 However, he attributes at the same place to the theory an 'enormous power. ... of explanation'. Since the explanatory power of a tautology is obviously zero, something must be wrong here. Yet similar passages can be found in the works of such great Darwinists as Ronald Fisher, J. B. S. Haldane, and George Gaylord Simpson; and others. I mention this problem because I too belong among the culprits. Influenced by what these authorities say, I have in the past described the theory as 'almost tautological', and I have tried to explain how the theory of natural selection could be untestable (as is a tautology) and yet of great scientific interest. My solution was that the doctrine of natural selection is a most successful metaphysical research programme. It raises detailed problems in many fields, and it tells us what we would expect of an acceptable solution of these problems. I still believe that natural selection works in this way as a research programme. Nevertheless, I have changed my mind about the testability and the logical status of the theory of natural selection; and I am glad to have an opportunity to make a recantation. My recantation may, I hope, contribute a little to the understanding of the status of natural selection. Links:

GvlGeologist, FCD · 3 November 2007

Raven said:
The theory of evolution posits a process of self-transformation from simple life forms to more complex life, which has never been observed or duplicated in a laboratory forms.
....(good discussion of why this is false clipped out).... PS No one has seen god is a lab, or anywhere else for a while either. Nor have they been able to create one. Does this mean he doesn’t exist.
The two really aren't comparable. You are implying that because "no one has seen god is(sic) a lab" it doesn't mean that he doesn't exist. A creationist would reply to that, that you are saying that evolution, like creationism, is, after all, a matter of faith. But one (biological evolution) is a matter of observational facts and conclusions, the other (God) is a matter of faith. You cannot use the tools of science (if NOMA is correct) to determine the presence or absence of a supernatural being, and you cannot (or should not) use faith to decide whether or not evolution exists.

raven · 3 November 2007

You cannot use the tools of science (if NOMA is correct) to determine the presence or absence of a supernatural being, and you cannot (or should not) use faith to decide whether or not evolution exists.
I see your point. But since the spammer is playing fast and loose with the rules of logic and reason, I didn't pay much attention to my own. He is BTW, spamming the same message on other boards under different names. I didn't read the conservapedia entry on the theory that my monitor (or head) might burst into flames but others are calling it one big quote mine. All I ever need to know.

Henry J · 3 November 2007

The fact that the theory of natural selection is difficult to test has led some people, anti-Darwinists and even some great Darwinists, to claim that it is a tautology [see CA500]. A tautology like ‘All tables are tables’ is not, of course, testable; nor has it any explanatory power. It is therefore most surprising to hear that some of the greatest contemporary Darwinists themselves formulate the theory in such a way that it amounts to the tautology that those organisms that leave most offspring leave most offspring. C. H. Waddington says somewhere (and he defends this view in other places) that ‘Natural selection … turns out … to be a tautology’ ..4 However, he attributes at the same place to the theory an ‘enormous power…. of explanation’. Since the explanatory power of a tautology is obviously zero, something must be wrong here.

I think that what's wrong there is the lack of any reference to the environment and the fact that it too changes over time. (Especially if neighboring species are also evolving, since they're part of the environment.) Also that sometimes a species (or some members of it) moves into an area that already has a different environment. Henry

JimV · 3 November 2007

Mark Barton: although I would like to find excuses for what appears to have been poor introductory wording on Dr. MacNeill's part, I don't disagree with your point, but I wished to register a counterbalancing opinion as to the overall worth of the article.

Raven and others: a similar point occurred to me, which is that we have never seen an act of spontaneous creation in the laboratory or in the field, yet fossils of modern cats, rabbits, etc. are not found in the older strata. The ToE is consistent with the evolutionary rates of change found in labs and in the field; if creationism says that the only way new species can form is by poofing into existence, why don't we see that?

Mark Barton · 3 November 2007

GvlGeologist: "You cannot use the tools of science (if NOMA is correct) to determine the presence or absence of a supernatural being, and you cannot (or should not) use faith to decide whether or not evolution exists."

While I'm in a mood to vent about bad presentation of science and philosophy of science, let me get a few kicks in against NOMA and the supernatural. If you actually read to the end of Gould's NOMA book you discover that the thesis he's actually prepared to defend is something close to that _ethics_ and science are independent. Despite appearances, Gould's NOMA has nothing to do with "religion" more conventionally understood, i.e., as typically theistic or involving the supernatural - Gould's idea of a sensible religion appears to be atheistic Judaism. I have no particular problem with the ethics version - it's just the old truism that you can't get "ought" from "is" - but I do have a problem with the popular misinterpretation. I don't agree that the theology part of theistic religion has some mysterious competence to study the content of some other magisterium, I think it's just bad science.

For related reasons I object to any definition of either science or supernatural that assumes that the supernatural has some magic property that makes it somehow off-limits to science. Of course the dictionary defines the supernatural as in some way the complement of the natural and that accurately captures a certain desire for the way the two categories should relate, but without more detail it's a via negativa and thus gibberish as an operational definition. The supernatural is defined in practice by a incoherent grab-bag of things that various people would like to exist but for which there is no good quality evidence. Period. There's no other common denominator to the canonical examples besides the fact that science has not yet gotten any traction. For example, Yahweh, the Judeo-Christian God, and Poseidon/Neptune, from the Greco-Roman pantheon, are both supernatural, but for at _least_ one of them and _probably_ both, the reason science hasn't gotten any traction isn't because they're supernatural but because they're fictional, and there's nothing to get traction on. Conversely, if a six-inch tall, luminous, superficially anthropomorphic, female creature with aerodynamically preposterous wings flits around my lab and responds cogently to verbal cues like, "Come over here", and if several colleagues see this, then we have scientific evidence for the existence of fairies whether they're canonically supernatural or not. I see no reason to concede the existence of a magisterium consisting of things whose only common denominator is a lack of reliable information about them.

GvlGeologist, FCD · 4 November 2007

Mark Barton,

My understanding of NOMA admittedly comes from what I've read on PT, I've read other SJG books, but not the one discussing NOMA. After reading your commentary I googled it and found "http://www.stephenjaygould.org/library/gould_noma.html", which I suppose is the original essay.

For the most part I agree with you (although Gould said he was a Jewish agnostic rather than atheist). Gould meant "area of teaching", not "area of inquiry or explanation", which I think is what most who use the acronym, NOMA, mean (and which I meant).

Having said that, I think that many who are both religious and supporters of science are comfortable with the concept that science cannot prove religion true or false and that religion cannot prove science true or false. (Of course, individual claims, as you point out, can sometimes be tested.) As long as those individuals don't try to deny the facts of science (and by that I mean not only data but accepted scientific theories), I have no problem with that attitude, and would in fact agree with it. Along the lines of your "six-inch tall, luminous, superficially anthropomorphic, female creature with aerodynamically preposterous wings", I've said that the only way I would be able to positively state that I was certain that God existed (rather than a matter of faith) is he/she appeared on Letterman or Leno for an interview, and performed a directly viewable (i.e. in front of me, personally, as well as all other viewers) miracle at the time!

At the same time, in the absence of viewing directly (for instance) fairies, I would state that we can't prove that they don't exist, just that the long-term lack of hard evidence suggests that they don't. I'd say the same thing about the Loch Ness monster (non-religious as far as I know), or living non-avian dinosaurs (strictly a scientific topic).

Hope this makes sense. It's late, and I'll come back tomorrow.

hoary puccoon · 4 November 2007

Mark Barton's original post bothered me, and it took me a while to figure out why.

Mark, have you actually gone back and read some of the ID/creationist attacks that Allen MacNeill is responding to? I have read here Realpc's repeated statements that "RM + NS" isn't enough to explain evolution. I don't recall s/he actually defines RM, but the implication is that RM refers some simple process. I've also read Egnor's sneering equation of gene copying with student plagiarism, concluding that it can't possibly add information. Allen MacNeill is responding to that kind of criticism, by pointing out that RM+NS isn't as simple as the IDers are making it sound. That's the strawman he's referring to.

I didn't understand every item on MacNeill's list-- although I did recognize most of them. But there was nothing there that sounded like Dembski in his 'I use big words and I have two PhDs, so accept what I say without question' mode. I'm sure I could research and understand every item on Mac Neill's list.

So, Mark, I feel like you're putting defenders of evolutionary biology between a rock and a hard place. If they simplify the process so that the basics are clear to everyone, creationists take their over-simplifications at face value and trash them. If they explain that, no, a simple slogan (RM+NS) doesn't really capture the decades of research in evolution, you come along and trash them for making it complicated.

What Allen MacNeill wrote may have shaken up your nice, neat-- and apparently basically correct-- view of evolution. But his objective was to show how IDers are dishonestly equating that nice, neat, basically correct package with everything-there-is-to-know-about-evolutionary-biology. He did what he set out to do in that list. It's not fair to attack him for not doing something else entirely.

hoary puccoon · 4 November 2007

And furthermore, there's one other important source of evolution, at least for us eukaryotes. That's symbiosis.

So-- variation (from all kinds of mutations, plus recombination); selection, including genetic drift; and symbiosis. It's still pretty simple in concept, if not in detail.

Mark Barton · 4 November 2007

GvlGeologist: The essay you found does appear to be an early (1997) expression of Gould's NOMA idea, but what I was referring to was his (short) book-length treatment, "Rocks of Ages" of 1999. In it he defends it at length against various objections and ends up making so many concessions that, as I said, he ends up whittling "religion" down to little more than ethics.

I'm sure you're right that there are religious people who support science and are comfortable with religion as something independent. I'm sure that that's largely true for their conception of religion, because they've systematically repudiated all falsifiable elements. But there are other conceptions of religion, and while the compatibilist version is commonly much less obnoxious I don't see that it has any better intellectual or historical claim to be the proper conception than any other. In particular while religious moderates will sneer at conservatives for taking an overly literal view of the Bible and cite Augustine as representative of a long-standing tradition of metaphorical readings, this isn't exactly a principled stand. If you actually go and read Augustine, you find his policy was (quoting from memory), "Whatever is prejudicial to God or the Saints you may set aside as figurative." That is, and I'm not being the least bit unfair here, if it's embarrassing it's figurative, never mind what for. Figurativity is an intellectual trashcan for whatever's inconvenient, whether to the idea of the Bible as a coherent story, or to the coherence of whatever theology is constructed on it, or to the relationship with external history and science. That's as much intellectual tennis without a net as the creationists. Moderate religion and science are compatible in the sense that doodling sea-monsters in the blank spaces on ancient maps is compatible with cartography: it's harmless fun if nobody takes it too seriously. But people do take religion seriously, and that's not just not science, it's anti-science. Insisting on falsifiability isn't some arbitrary bonding ritual like handing out diplomas in 14th century Florentine costume - it's in the scientific method because it's a universally good idea. It's a universally good idea because if you traffic in unfalsifiable ideas then your chances of noticing if they're wrong is exactly zero, and because just one wrong idea can totally corrupt an entire theoretical system.

In the same way, I see no reason to endorse or cooperate with the conventional division into theist, agnostic and (strong) atheist. It's not that there aren't three categories, it's just that "agnostic" tends to smuggle in the presumption that, effectively, the Bayesian prior for the issue should be 50%. But that's silly and ought not to be taken seriously. The prior for a complex existential claim should be near zero, and the burden of proof should be on the person making the claim. It should be that way for the trivial reason that most ideas that people dream up are wrong, even those dreamt up in a conscientious effort to explain features of the visible world. People just aren't that good at armchair philosophy. A better division is theist, weak atheist and strong atheist, which reflects the reality that for all practical purposes weak atheism (passive lack of belief) is not different from strong atheism (active disbelief).

Mark Barton · 4 November 2007

HP: "I’ve also read Egnor’s sneering equation of gene copying with student plagiarism, concluding that it can’t possibly add information."

But this is precisely my point. Egnor is crudely, boorishly wrong about this because he knows nothing about information theory and doesn't want to know. The toy model system with only point mutations is perfectly adequate to illustrate this, because, even there, information can increase. Very possibly it can increase faster through all the other mechanisms but there's no point in discussing that when it's not conceded that it can increase at all.

David Stanton · 4 November 2007

Hoary wrote:

“I’ve also read Egnor’s sneering equation of gene copying with student plagiarism, concluding that it can’t possibly add information.”

Man, I had not heard that one before. I guess this guy has never heard about the sophisticated software that is used to catch plagarism. You see the thing is that anyone can cut and paste segments or even whole papers, but they don't have to stop there. If the paper is not exactly on the right topic, or if they just want to avoid being easily caught, students usually change at least some of the words and add other things to the paper. And of course just finding some similarity between their paper and another is not enough to prove plagarism. So the software can perform a sophisticated statistical analysis in order to determine which parts were copied. The entire point is that changes can be made after the initial copying.

The same is certainly true in biological systems. Gene duplication, followed by divergence is what creates new genes. The new information is not added by the duplication event. The point is that this process removes the selective pressures on the second copy, thus allowing for exploration of the adaptive topography without selective constraint. This provides opportunities for random mutation and natural selection to add information as they have been shown to do.

Arguing that gene duplication produces no new information is like arguing that copying a paper cannot help you write a paper. It is not only worng, but it misses the point entirely.

james · 4 November 2007

i think the conservapedia guy was goading you all into pointing out any outright lies in his article, so that he could fudge it around and preempt any refutations. he's now mined a quote to fend off anyone pointing out that they're lying
Leading Darwinist and philosopher of science, Michael Ruse acknowledged regarding Popper's statement and the actions he took after making that statement: "Since making this claim, Popper himself has modified his position somewhat; but, disclaimers aside, I suspect that even now he does not really believe that Darwinism in its modern form is genuinely falsifiable."[6]
"modified his position somewhat" hahaha. Modified it to precisely the opposite position you mean.

raven · 4 November 2007

Leading Darwinist and philosopher of science, Michael Ruse acknowledged regarding Popper’s statement and the actions he took after making that statement: “Since making this claim, Popper himself has modified his position somewhat; but, disclaimers aside, I suspect that even now he does not really believe that Darwinism in its modern form is genuinely falsifiable.”[6]
Who is this M. Ruse to tell Popper what he really thinks? Popper is an adult and fully able to speak for himself. As a philosopher of science, that is, in fact, his job. FWIW, I didn't bother to visit conserva-lie-apedia on the basis that their trolls are most likely spamming the net to increase their hit rate and to avoid the possibility of my computer bursting into flames. Other posters have claimed credibly that the evolution article is one big quote mine and a huge pack of lies. All anyone needs to know. Standard creo strategy. "We lie constantly so this proves god exists." Loser strategy IMO.

raven · 4 November 2007

Conserva-lie-apedia freely admits that their strategy is to lie. Below is a few posts from the PZ board, where the spammer trolls also showed up, documenting that fact. Whatever, lying is immoral but not illegal. Why anyone would bother to read their collection of lies is beyond me.
Just for fun, here's the section on "Quote mining" from Conservapedia "Quote mining is a meaningless term that expresses objection when a quote is used against person quoted. This term is not recognized by the dictionary, and is used primarily by evolution believers to oppose the use of quotations by evolutionists that tend to discredit their theory.[Citation Needed] The entire legal and political fields use quotes by others against them. There is nothing objectionable about this practice, and the term quote-mining could apply to nearly every legal proceeding and political campaign." See guys? Lawyers and politicians do it! It must be ethical! Posted by: RamblinDude | November 3, 2007 9:31 PM #92Just for fun, here's the section on "Quote mining" from Conservapedia "Quote mining is a meaningless term that expresses objection when a quote is used against person quoted. This term is not recognized by the dictionary, and is used primarily by evolution believers to oppose the use of quotations by evolutionists that tend to discredit their theory.[Citation Needed] In other words, a highly dishonest tactic used to lie and mislead people that no one reputable would use is OK because conservapedia couldn't lie without it. I see. Makes perfect sense. And these liars have the gall to call themselves Xians. Explains why no one takes conservapedia seriously either. Posted by: raven | November 3, 2007 10:33 PM

Richard Simons · 4 November 2007

While browsing through Conservapedia about a year ago I came across this delightful piece about the frog. I commented on it at the time and it has still not been corrected.

Mike Elzinga · 4 November 2007

In the same way, I see no reason to endorse or cooperate with the conventional division into theist, agnostic and (strong) atheist. It’s not that there aren’t three categories, it’s just that “agnostic” tends to smuggle in the presumption that, effectively, the Bayesian prior for the issue should be 50%. But that’s silly and ought not to be taken seriously. The prior for a complex existential claim should be near zero, and the burden of proof should be on the person making the claim. It should be that way for the trivial reason that most ideas that people dream up are wrong, even those dreamt up in a conscientious effort to explain features of the visible world. People just aren’t that good at armchair philosophy. A better division is theist, weak atheist and strong atheist, which reflects the reality that for all practical purposes weak atheism (passive lack of belief) is not different from strong atheism (active disbelief).
The most likely reason the Bayesian prior is not taken to be zero is historical because people still figure there might be something to the stories of a deity in the various religions that still exist in various cultures (Could so many people be wrong?) The Deist position allows for the possibility of a deity, but in its practical implications it is like saying something exists for which there is no possibility of detection. Then why even postulate such a thing other than to “explain” what we see in the universe. And why allow such an explanation? Because the universe appears “designed” (in the eyes of a human anyway). We now know that such “designs” can evolve quite naturally from known physical laws. Some other alternatives could be derived from the “drive” of life (it’s manifestation in humans being the “yearning” to understand things perceived to be beyond our current reach). Some kind of deity places this in its creation so that it will evolve. Again, this derives from a number of historical concepts such as vis-viva, etc.. In the end, probably none of the positions on the existence of a deity are rationally justified, but many figure that rationality is insufficient to encompass everything that we see in our universe. So far, not even this position appears to be the ultimate case since even the most complex phenomena we know about do not appear to rule out physical explanations. But that last statement in itself may be hubris.

Mark Barton · 4 November 2007

"Could so many people be wrong?"

Of course. Not only can that many people be wrong, but in the case of gods/Gods they obviously _are_ wrong. That's the insight behind Dawkins' barb, "We're all atheists, I just take it one God further." Gods are _normally_ fictional. Theology is _normally_ nonsense. It's taboo to say so, and the taboo is not wholly without merit, but I don't see how the underlying proposition can sensibly be denied.

Mike Elzinga · 4 November 2007

It’s taboo to say so, and the taboo is not wholly without merit, but I don’t see how the underlying proposition can sensibly be denied.
:-) I think I can agree but I don’t think science (and we physicists) can be “casting the first stones.” “Higher callings” of any sort, be they religion, science, politics, have lead to some of the best and some the worst that humans do and have done. Science has educated us about our interconnection with everything on this planet and what the physical consequences of our behaviors may be, but that knowledge doesn’t necessarily translate into the kind of rational behavior that would preserve us or this planet. It is sometimes taboo to say that science hasn’t delivered on what it has promised, but its limitations at least cause me to pause in saying that religion is normally nonsense. I think, at least, that I can say that there aren’t very many humans (if any) who can demonstrate that they know anything about the mind of a deity that can create an entire universe with us in it. And it is evident that the numbers who know anything about science are of the same order of magnitude. And I have no clue what would happen if the majority of humans on this planet understood science.

Mark Barton · 5 November 2007

"It is sometimes taboo to say that science hasn’t delivered on what it has promised, but its limitations at least cause me to pause in saying that religion is normally nonsense."

Note that I was careful to specify that _theology_ is normally nonsense. Religion is typically a bunch of stuff that the ancients thought they knew, from morality to history to cosmology, woven into a story with some theology. And because the ancients were by no means totally clueless or barbaric, religion is by no means totally nonsense. But I stand by the bit about theology, and it's the _strengths_ of science that enable me to say that. After all, it's just ordinary hypothesis testing: if there were a God and people had a God-detector sense or some other reliable means to information about God, people working independently would report the same information about God. But they don't. That's not affirmative evidence against God, but it is affirmative evidence against theology.

Flint · 5 November 2007

I don't think physicists face the same flavor of opposition biologists face. Physically, it would be accurate to say that *in principle* a rocket ship works the same way paddling a log works - something pushing against something else, and an action in one direction implies an equal and opposite action in the other direction.

Now, imagine someone claims that the physicist claims you can get to the moon by paddling with a wooden paddle, and quotes the above "toy" example. And imagine that *thousands* of web sites pick up this accusation and repeat it. Imagine it's also taught as an illustration of how stupid physics is, in churches and Sunday schools nationwide.

So OK, you physicists, how do you counter this? By claiming your toy example is wrong? But it's not wrong. By pulling a bait-and-switch and saying the toy example is insufficient? But why was it presented if it's not good enough? Yes, YOU know, and WE know, that the person making this silly representation ALSO knew that it was bogus. Sure, there are plenty of aspects of rocket technology that are not obvious, such that a detailed presentation would overwhelm the layman with equations and jargon.

But the core insight here isn't that the fundamental principles are different; but rather that *someone is lying*. On purpose. With intent to deceive. So long as explanations are accessible to the layman, they're worth lying about. Explanations requiring more knowledge than the layman possesses can be misrepresented as doubletalk and bafflegab. You're not trying to correct error or inform ignorance here - the liar KNOWS he's lying. Your problem is, too many people want to believe the lies. Your real opponent isn't the liar, it's his audience.

Mike Elzinga · 5 November 2007

Note that I was careful to specify that _theology_ is normally nonsense.
Ah! Sorry; I misread that. Then I agree. Speculating about a god without a god detector (or any hope of obtaining a god detector) is indeed folly.
Sure, there are plenty of aspects of rocket technology that are not obvious, such that a detailed presentation would overwhelm the layman with equations and jargon.
You picked a good example. The basic principle is conservation of momentum, not “something pushing against something with equal and opposite force”. It is easy to dispense with the misconception that would be introduced in this “toy example”. But having to deal with such deliberately deceptive argumentation is indeed frustrating. I think it is true, however, that biologists have a harder time than physicists because a charlatan can get burned more easily trying to pawn off stupid physics ideas (although they still do it repeatedly with thermodynamics in spite of having been scorched many times; they just change the scenario a little). In many ways the ideas of evolution are more subtle and difficult to assimilate than the ideas in physics. They really are quite advanced forms of thinking that don’t start showing up in physics until one is farther along in one’s training (statistical mechanics and thermodynamics). If I am recalling my history correctly, some of these more advanced ideas in the development and survival of organization in physical systems were first articulated by biologists. In addition, evolution is perceived to intrude on sacred ground claimed by the hucksters of fundamentalism.

Mark Barton · 5 November 2007

Mike Elzinga to Flint: You picked a good example. The basic principle is conservation of momentum, not “something pushing against something with equal and opposite force”.

Err, I don't think it's as good an example for his point as you make out. Both involve conservation of momentum, but it's critical that the motion of the rocket depends on COM of the rocket-fuel system, whereas progress of the log works by conservation of the log-earth system. Thus the log method of propulsion does not work so well when contact with the earth is prevented. If we as physicists neglect to mention that, you're entitled to chew us out.

Mike Elzinga · 5 November 2007

Err, I don’t think it’s as good an example for his point as you make out. Both involve conservation of momentum, but it’s critical that the motion of the rocket depends on COM of the rocket-fuel system, whereas progress of the log works by conservation of the log-earth system. Thus the log method of propulsion does not work so well when contact with the earth is prevented. If we as physicists neglect to mention that, you’re entitled to chew us out.
True enough, but I was more interested in the way Flint posed the “argument”. It was indeed much like what the ID/Creationist crowd does unfairly to the biologists, and Flint made a good point. It sets up a situation in which the ID/Creationist gets to play the role of a legitimate scientist. One of the difficulties is avoiding over-explaining. It is extremely tempting for a scientist to want to demonstrate superior knowledge and slam-dunk the fool. This is how they get lured into debates that make ID/Creationists look legitimate. But I have been watching the ID/Creationist responses to detailed explanations by biologists (a good recent example here on PT being “Bornagain77”) in which they return with a barrage of “technical refutation”, making it appear that they are in command of a vast technical/scientific knowledge. How is a person not versed in the language to decide which one is the liar? I don’t like to get sucked into setting up a situation like this. Better to explain in simple steps. If that is insufficient in the first step, find out where the next misconceptions are and provide another simple explanation. Otherwise you risk your audience glazing over and making your subject matter appear too “esoteric”. It then results in a shrug by your audience that indicates they don’t know who is right and it is just a matter of opinion. Some of this comes from experience with the findings of over 30 years of Physics Education Research (I kept up even though I was not teaching for several years of this time but doing research in my own areas instead). So your corrections are a legitimate next step if further questions come up. But don’t hit them with it all at once. You could just as easily undo what successes you achieved in your first step.

Flint · 5 November 2007

Mark Barton:

Both involve conservation of momentum, but it’s critical that the motion of the rocket depends on COM of the rocket-fuel system, whereas progress of the log works by conservation of the log-earth system.

Sigh. No, this is NOT the point. The point is that you are dealing NOT with clarity, NOT with an effort on one side to explain and on the other to understand. You're dealing with deliberate mendacity. Give me ANY simple example of physics in action, suitable for a 9th grader, and I'll guarantee I can find a way to distort and misrepresent so as to make you and by extension your entire discipline look at least foolish if not outright dishonest. Give me a few tens of millions of people desperate enough to deny your knowledge to fund thousands of palatial churches, a Creation Museum, make Ham and Hovind rich, and my distortion of your physics doesn't even need to make sense for me to "educate" untold thousands of children against you. And this returns to your original point. Creationists took a simple example and twisted it into something it was not. Creationists are, let's give them credit, masters at this. They don't say things that are outright false; they work at telling half-truths, omitting critical factors, quoting out of context, leading people in the wrong direction, constructing invalid contexts within which factoids take on new meanings, and on and on. To counter this often requires building the *correct* context, which can be complex and technical. It's often been observed that Duane Gish mastered the art of saying three dozen things in 5 minutes, all of them supericially plausible, EACH of which would require an entire semester of college-level education to properly refute. And so to correct my deliberate misrepresentation, you found it necessary to ring in jargon ("conservation of momemtum") and then start building a new context (relevant components of the system, and why this matters). How difficult would it be for me to laugh (joined in by my army of ignorant faithful) at how, when caught out, you found it necessary to change your tune - TWICE! Your "denial" would then ALSO find a permanent home at a thousand websites, and be used against you in Sunday schools attended by half the kids in the country. See how that works?

Mike Elzinga · 5 November 2007

Actually I should add one more point that is important from a pedagogical perspective.

Guide the student to discover the basic idea while providing encouraging feedback, hints and analogies if appropriate. That engenders more confidence in the idea and you don’t end up looking too arrogant. Once they learn that understanding is achievable, people come to trust your guidance rather than that of the charlatan. So you don’t want large, discouraging steps in your explanations. This is most important at the more elementary levels. You have more tools to work with as the student progresses.

Mark Barton · 5 November 2007

Flint: And so to correct my deliberate misrepresentation, you found it necessary to ring in jargon (“conservation of momemtum”) and then start building a new context (relevant components of the system, and why this matters).

But as far as I can see the extra components _don't_ matter to the point the creationists are being mendacious about. It's not as if these extra mechanisms are indispensable to information increasing - point mutations can achieve plenty all by themselves, but the creationists are already playing dumb about that most basic point.

Flint · 5 November 2007

Mark Barton:

The point I was trying to make is that we're not dealing with a failure to communicate, but with a refusal to accept. Perhaps there is no possible effective way to support a case someone simply will not credit. When you are confronted with an opponent who is willing to do whatever works to discredit you, and integrity plays no role in this process, you have a somewhat different challenge than the average educator. Someone who does not understand but is willing to try, requires different pedagogical techniques from someone who WILL not understand, and is deliberately attempting to undermine and misdirect your efforts.

And so we come around full circle. OK, so it's bad technique to take something inherently complex and multifaceted (not to mention highly technical), and overwhelm an uninformed audience. But how to deal with someone who takes an accurate but highly limited example illustration, presented because it's easy to grasp, and deliberately misrepresents it BUT does so plausibly (to their target audience)? What you see coming back at you is honest, well-meaning people exposed to the distortions but not the illustration as you presented it, asking misguided questions based on deliberately-planted false assumptions.

So it's pretty natural to go into a bit more depth so as to flesh out and cement the context correctly, and show how the malicious assumptions are false. And all the while, you KNOW the creationists are "playing dumb" about the basics in order to sandbag you into greater depth, from which they will be able to forge more ammunition. You must bear in mind that your true audience isn't the liars, it's those who know no better and trust the liars. Typically, greater clarity of explanation must rest on greater understanding of the underlying principles.

And so you're stuck: repeating without adding is a swearing contest. Repeating with added information is bafflegab. A good explanation of anything implies a good-faith willingness to learn. Creationists operate in bad faith.

Mark Barton · 5 November 2007

Flint: The point I was trying to make is that we’re not dealing with a failure to communicate, but with a refusal to accept.

I agree completely but I still don't see how the extra info helps. The info dump can't possibly be, as claimed, a defence against a creationist straw man, because the claim in question is simply not a straw man. A straw man is an oversimplified or otherwise garbled version of a claim put out by its opponents to make it easy to cut down. The idea that evolution is genetic mutation plus natural selection wasn't put out there by creationists - it's the biologists' own formulation to make it easy to explain, and it's not materially oversimplified or incorrect for the purposes of illustrating that information can increase via simple mechanical processes.

Mike Elzinga · 5 November 2007

I think the best analogy I can think of comes from what Duane Gish did (he essentially trained a generation of these fraudsters).

Throw garbage all over the place and refuse to pick it up by claming it was thrown all over by someone else. Then if a responsible citizen steps forward to start cleaning up the mess, accuse that person of causing the mess while throwing more garbage all over the place and reporting to everyone that the person cleaning up the mess is the one really responsible for this bad situation and that you are only attempting to point that out by pointing to the garbage.

Sounds pretty stupid when put that way, but it seems to work for the ID/Creationists. They have an audience that can’t distinguish so they go with whom they trust. And they trust the avuncular old guy with the sly sense of humor, quoting scripture, and throwing garbage all over the place.

Flint · 5 November 2007

I agree completely but I still don’t see how the extra info helps.

I interpret the extra info as a step toward clarification and completeness. If RM+NS is a valid description of one of the mechanisms of evolution, why would any biologist react negatively to any agreement that this is so, UNLESS the biologist's intent were being misrepresented in some way? If point mutations are one aspect of mutation which, in and of themselves, explain some portion of evolution, why would a biologist object to a correct and accurate reflection of this? My reading is that MacNeill is responding to a misleading, incorrect, and deliberately false description of one evolutionary mechanism. I can agree that if biologists said this is the ONLY mechanism, they're at fault. Perhaps MacNeill is deploying a suboptimal response to creationist dishonesty. Maybe he's trying to anticipate the same sort of dishonesty to any mechanism he proposes, and is trying to at least get creationists to tell DIFFERENT lies. But I'd like to see you try to present elementary physics in a debate format, when your opponent refuses to debate unless he gets to bus in the entire audience, select the moderator, dictate the format, and then rattle off a memorized list of misrepresentations all of which are polished to be plausible, easy to memorize, told with humor and comaraderie, and both he and his bused audience are absolutely convinced you're lying and deluded. Ready, get set... (And, oh yeah, on the internet your opponent controls the forum, and gets to delete or edit comments. Where creationists don't yet control the forum, they preach "teach both sides". Where they DO control the forum, they pound their doctrine and tolerate absolutely nothing but "amen". This can get irritating. You think lawyers argue in bad faith? Creationists lie circles around them.)

Mike Elzinga · 5 November 2007

A straw man is an oversimplified or otherwise garbled version of a claim put out by its opponents to make it easy to cut down. The idea that evolution is genetic mutation plus natural selection wasn’t put out there by creationists - it’s the biologists’ own formulation to make it easy to explain, and it’s not materially oversimplified or incorrect for the purposes of illustrating that information can increase via simple mechanical processes.
The tactics that the ID/Creationists use are pretty revolting to most people if pointed out properly. Most of the high school educators I have talked with feel they need more ammunition in this area. The Quote Mine Project over on TalkOrigins is a good example of spotlighting these sleazy tactics. I think that most of the scientific community is coming around to this conclusion. Debate only if you have a particular skill in this area, but otherwise accumulate the evidence of mendacity on the part of the ID/Creationists and display it prominently. Meanwhile, keep explanations simple and don’t get baited into to a long discourse with an ID/Creationist. “Never wrestle with a pig; you both get dirty and the pig loves it.” (I was told by a Chinese friend that it is an old Chinese proverb, but it has popped up in a few places)

Stanton · 5 November 2007

Mike, the wrestling pig proverb is from the American South. Virtually all Chinese pig-related proverbs deal with pork, rather than the living animal. Those very few proverbs that deal with live pigs tend to refer to wild pigs, which are much neater animals compared to their domesticated descendants.

Mike Elzinga · 5 November 2007

Mike, the wrestling pig proverb is from the American South.
Stanton: Yeah, I’m not surprised. My “friend” (office mate really) sometimes struck me as imitating the stereotype Chekhov on the original Star Trek series, but with a Chinese twist. He also used to run out of the office to get some paper towel and soap to scrub down his desk (with a disgusted look on his face) if someone leaned their butt against it. Strange. :-)

Stanton · 5 November 2007

That's what you get for trusting someone who got a Tau Ceti eel put into his ear.

Mike Elzinga · 5 November 2007

That’s what you get for trusting someone who got a Tau Ceti eel put into his ear.

LOL! I thought his expression was strangely blank at times.

hoary puccoon · 6 November 2007

I suspect the strawman aspect of "RM+NS" is that creationists tacitly define a mutation as some kind of Hollywood-style 'Creature from the Black Lagoon' freak. (Did someone mention above that creationists are not honest people?)

Would it clarify this issue if, rather than listing all the different kinds of mutations, scientists made a few simple points?

1.) Most mutations make tiny changes that don't have much effect one way or the other.

2.) Extremely damaging mutations almost always cause a creature to die without descendants, so they don't affect the fitness of a species.

3.) Beneficial mutations are rare-- but because the living things with these mutations often have lots and lots of descendants, rare mutations become common in a species in what geologists consider a very brief period of time.

So-- extremely damaging mutations occur much more often than beneficial mutations. But because of natural selection, our genes carry many of our ancestor's beneficial mutations, and none of their extremely damaging ones. That's why RM+NS works. Does that attack the strawman without unnecessary detail?

Mike Elzinga · 6 November 2007

Perhaps MacNeill is deploying a suboptimal response to creationist dishonesty. Maybe he’s trying to anticipate the same sort of dishonesty to any mechanism he proposes, and is trying to at least get creationists to tell DIFFERENT lies.
Over on MacNeill's web site, some of the comments from the ID/Creationists posting responses to his overview illustrate quite well their tactics. Waving their "credentials" is one. You can really see the pretentiousness in the ID responses as they try to pass themselves off as legitimate scientists, thereby giving themselves the "authority" to set the definitions used in the "debate". The sleaze continues, but at least it is on record as a sleazy tactic. We should display it for all to see.

Mark Barton · 6 November 2007

HP: "I suspect the strawman aspect of “RM+NS” is that creationists tacitly define a mutation as some kind of Hollywood-style ‘Creature from the Black Lagoon’ freak."

I agree that that's much more the root of the problem, and unless it's tackled head-on (much as you suggest) there's no use mentioning all the other types of variation on the list because they're all going to get the same treatment.

David vun Kannon · 9 November 2007

HP: “I suspect the strawman aspect of “RM+NS” is that creationists tacitly define a mutation as some kind of Hollywood-style ‘Creature from the Black Lagoon’ freak.” I agree that that’s much more the root of the problem, and unless it’s tackled head-on (much as you suggest) there’s no use mentioning all the other types of variation on the list because they’re all going to get the same treatment.

— Mark Barton
Yes, we need to replace the Antennapedia meme with the Super-Bug meme such as MRSA.