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Tuesday, August 03, 2004

Creationist e-mail: Gary Luce thinks biology promotes Haeckel

I've been sending my standard e-mail policy response to the creationists who dun me with their misconceptions, and what do you know, one actually agreed to let me address his complaints publicly. It's on the high end of the literacy scale (I'd feel a bit guilty to be picking on an illiterate, after all), but about on par with most creationist mail on the comprehension scale, so it's easy stuff. Here's the first letter from Dr Gary Luce.

Paul, I read your entry on the nmsr website and took the trouble to run down your email address. I am a Ph.D. physical organic chemist employed at Eastman Chemical Company, and in the interest of honesty, have to tell you that I am a Creationist and tend to follow that mode of thinking. Now please do not dismiss me as a crank on that basis. I do not have peer reviewed publications as bona fides, but I do have a number of U.S. patents and have designed and supervised the startup of 4 new chemical plants for my employer. I obtained my Ph.D. under B. L. Shapiro and Ken Harding who graduated from Carnegie Mellon and were postdoctural students under the great (some say greatest) organic chemist R. B. Woodward at Harvard University. So my bona fides are in fact....bonda fide. I had a good education.

A good education in chemistry. I had two years of training in chemistry as an undergraduate, which is far more chemistry than most chemists have of biology, but I wouldn't think of going down to Eastman and telling them how to improve their chemical processes. It's funny how everyone thinks they have the background to dismiss evolutionary biology.

 
I was very interested in what you wrote on the nmsr website concerning Haechel's embryos. Your writing on the website does in fact contain true statements that Haeckel's theory was discounted in the 19th century and, yes, evolutionary theory is not based on Haeckel's work. If it stopped there, all would be well.

I guess the surprise to me is that Haeckel's material is still taught as fact in public schools. When I took Embryology as an undergraduate at Texas A&M University in the fall of 1973, my professor made great note of his work. I still have my class notes and textbook, "Foundations of Embryology", Bradley M. Patten, McGraw-Hill Publishers, 1958. Now that is an old reference, but the fact is, my two sons who have taken honors level biology classes in high school have been taught the same thing in two different states (Texas and Tennessee). It seems to me, that the evolution-creation debate suffers from a considerable amount of memory of convenience. In other words, the science education system continues to promote outdated and disproven concepts such as Haeckel's, and then when confronted, bring up the discreditation story. Creationists lob a few shells over the wall attacking such discredited theories and then snicker. How are we ever going to get past this when so much is at stake? As an educator, I would encourage you to challenge the education system to root out the facts and not just continue to regurgitate the same old tired theories. Our future, the lives of our students and the souls of men are depending on it.

They use 25 year old textbooks at Texas A&M?

Note the erroneous elision and broken logic. 1) admission that biology discounts Haeckel's concepts, 2) complain that biology still uses Haeckel's 'material', 3) accuse biology of dishonesty for continuing to promote Haeckel's concepts. Dr Luce doesn't comprehend what he is talking about, and is using a tiny amount of information to draw a false conclusion. To use a chemical analogy, it's as if I remembered just enough chemistry to know that the phlogiston theory was discredited, but then learned that my kids were being taught about rust and burning in high school chemistry. Why, those dastardly chemists! That's just phlogiston, all gussied up in a fancy new word, "oxidation". How dare those professionals lie to us! How clever I am to know something those fancy-pants Ph.D.s thought they could fool me with!

Haeckelian recapitulation is in the same boat with phlogiston. It's a discarded theory that is not taught anymore, except as an instructive episode in the history of science. But that doesn't mean that embryos don't go through a broad stage where they resemble one another as they assemble key elements of the body plan; just as it doesn't mean that things stopped burning when phlogiston was evicted from the body of science.

And no, it doesn't mean that every time a teacher shows a picture of a chick and a human embryo that they have resurrected the corpse of Haeckel. It means they are teaching them good biology.

Campbell/Reece/Mitchell
Copyright © 1999 Benjamin/Cummings

Here's his second e-mail, in response to my request that I address it publicly.

I'm sure you do get some "unusual" mail and, yes, I would agree to a public reply with my name associated with it. And here is why. I am not just trying to pick a fight, or "prove" someone else wrong or myself to be in the right. I am a deeply committed scientist as well as a believer. I don't agree with some of the tactics of the intelligent design and creationist movement. I think there is an element of self-righteousness associated with it that is unnecessary and destructive to useful debate. I think the same thing exists on the side of proponents of evolution. And the more I have read and studied over the years, the more I have felt misled by the system that provided my education. And that is what prompted my email to you. I think we all need to back up a couple of steps and listen to the other side a little more.

As a trained scientist, Dr Luce should know that scientists back up and change their ideas all the time—in response to evidence. Evidence. That's the key thing. And the creationist side has consistently failed to present any. What he calls "self-righteousness" is actually exasperation at all these people who demand that we abandon the evidence to conform to their superstitions.

Note also the interesting construction, "misled by the system that provided my education". Along with the usual careful list of their credentials, this is a phrase that must be required by the creationist mind-set, I've seen it so often. I have never yet seen one say, "misled by my religion."

As a Christian, I have long had difficulty with the young earth scenario. Yet at the same time, if the Lord God is really who he says he is in the scriptures, then the old earth becomes a problem as well.

Why, yes. And if Hello Kitty is the apotheosis of perfect organic design, then the oral cavity is an abomination and we commit heresy every time we speak. Everything becomes a problem when you start admitting absurdities as a premise. That doesn't mean we throw out the realities of the world we see around us, it should mean that we reject the premise.

Dinosaurs are obviously very real. In fact, I live only about 25 miles from the new site at Gray, TN where highway construction has uncovered a very rich "pit like" discovery of rhinoceros, horse, cat, and other intact fossils similar to the LaBrea tar pits. I have myself walked the dinosaur trail at Glen Rose, TX. I must admit I don't agree with the conclusions of the park staff with regard to that find, but that is the nature of our field. There are in fact different options.

How unscientific of Dr Luce. No, all proposals are not equal; they are more than "different options." Some are reasonable, promising, and supported by the evidence. Some are not. As scientists, we give greater weight to good ideas than we do to baseless speculation or antique superstitions.

And yet when I think back to when I was in junior high. I remember a book my parents gave me for Christmas that talked about the classic theory of a wet, hot swampy earth, coal formation and fossil preservation. Even then I simply could not rationalize what I understood about decay, scavenger behavior and bacterial decomposition. As a 15 year old kid I could look at the information and form my own conclusion, "that is just not possible."

Why, yes, creationism becomes tenable if we approach it with the uninformed mind of a teenager, reject anything that seems counterintuitive, and base our intuition entirely on our extremely limited personal experience. Is this supposed to be a legitimate example of support for creationism, or an account of creationist shortcomings?

That 15 year old kid's understanding about decay was simply wrong. I'd tell him now that he ought to look up the magic word "taphonomy" and read up on it.

And of course I could go on and on, and will in fact if that should prove useful to our discussion. But the bottom line is this. The classic problems of biochemistry, cosmology, physics and paleontology have become less clear, not more clear with time and increasing advances in our technology development for study of them. Old problems like Haeckel's embryos should have been dealt with forcefully and clearly long ago. As scientists and educators, we owe it to the generations that follow us to see to it that truth is as rigorously maintained in our debate as it is in our collection and interpretation of data. Again Paul, if the claims of the scriptures are true, and I believe that they indeed are, then there is far more at stake than at first appears. The result will not be temporal, but eternal.

Another tired creationist canard I hear over and over again, that science is making evolutionary interpretations increasingly untenable. This is not true. I just got back from a major scientific meeting where people were discussing the latest, hottest stuff in developmental biology, and there was more talk about evolution there now than there was twenty years ago; what we're seeing is an amazing synergy between evolutionary biology and other disciplines, with each informing the understanding of the other. Claiming otherwise is like hearing some crank argue that we've lost clarity in our understanding of chemistry, because once upon a time there were only four elements, and now there's around 112, and those danged godless nuclear chemists keep trying to add more.

Haeckel's embryos have been dealt with forcefully and clearly repeatedly. Von Baer argued forcefully against the interpretation of recapitulation thirty years before Haeckel, Gould dealt with it at length in the 1970s, and I and every developmental biologist I know teaches that it is plainly wrong. The only people who have "memory of convenience" on this matter are creationists. And rigorous maintenance of the 'truth' (not a term we use much in science) demands that we treat creationism as old garbage.

Both of Dr Luce's letters end with another common creationist trope, the threat. They are more politely phrased in this case than the more common, "You're going to burn in hell," but it's still the same old thing. No, Dr Luce, I do not accept your absurd, unfounded belief that some invisible hobgoblin is going to do mean things to me once I'm dead, all because I try to teach the most honest interpretations of the material world around us. I do not even consider it. It is not part of the equation when I am trying to weigh the accuracy of truth-claims in the real world, although clearly it is part of yours.


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Comments:
#4982: Les Lane — 08/03  at  10:42 AM
I expect scientists to be skeptical of intuition and to base conclusions on scientific evidence. A "creationist chemist" may be a chemist, but is not a scientist.



#4983: — 08/03  at  11:02 AM
Apparently, for some reason creationists think that because Haeckel's embryo drawings and recapitulation idea have been shown to be erroneous, we are not allowed to mention embryos at all when discussing evolution.

Maybe they're trying to set a precedent? Under this logic, we also cannot mention the genuine hominid fossils because of the Piltdown man episode.

It may not be logical, but it sure would be effective! wink



#4984: — 08/03  at  11:25 AM
They use 25 year old textbooks at Texas A&M? They did not when I attended in the early 80's. They used very expensive new books. Of course in 1973 TAMU was about 95 % CT's.



#4988: Tom Morris — 08/03  at  12:35 PM
Only moderately on-topic: I just found a copy of a book of Haeckel's nature drawings the other day. Anyone who wants scans just shout...



#4990: — 08/03  at  12:41 PM
And if Hello Kitty is the apotheosis of perfect organic design, then the oral cavity is an abomination and we commit heresy every time we speak.

Beautiful!



#5012: — 08/03  at  10:46 PM
I agree with Les. I've never understood how otherwise rational people can totally abandon their thinking abilities when it comes to this particular topic, and that goes double for a scientist. As scientists, we're taught a certain way of looking at the world that just seems at odds with wild (and untestable) claims. How can Dr. Luce have made it through his schooling without gaining this mindset?

And how did I never notice that Hello Kitty had no mouth?



#5013: — 08/04  at  12:59 AM
Having followed the evolution-creationism "debate" for several years, I'm fascinated by the latest attempts to make creationism appear to be intellectually respectable. Two not-so-brief comments:

(a) I find it believable that Haeckel's embryos are still used in high school biology textbooks in Texas and Tennesee. The problem here lies not with those dastardly and conniving evolutionists, but with limited state funds with which to purchase contemporary textbooks, and more generally, with a progressive weakening of the commitment to education. To continue PZ's phlogiston example, it's as if the state had no money to buy textbooks written after the discovery of oxygen.
(There's also the problem posed by slackening textbook standards, but that's a whole 'nother can of worms.)

(b) Dr. Luce admits something very revealing that most creationists are reluctant to admit, for fear of appearing "unscientific": creationism rests on a priori principles, and insists that there's a direct connection between those principles and eternal salvation or damnation. And a priori claims are notoriously invulnerable to empirical falsification; there is no evidence to which one could appeal in order to show that 2+2 is not 4. Creationism--and fundamentalism more generally--arise when the prospect of absence of a priori principles is experienced as a threat to stability, order, and meaning. But once a priori claims enter the picture, appeals to evidence fall on deaf ears. Hence the evolution of the Philip Johnson strategy: assert that "evolutionism" also rests on a priori principles, admit that there is no tribunal of experience for adjudicating between incompatible sets of a priori claims, and therefore demand that all belief systems be treated equally.



#5015: — 08/04  at  01:53 AM
Carlos - it's not tennable to hold that creationism rests on a priori principles (a priori in the same sense 2+2=4 is) - and you certainly shouldn't believe that if you are not a creationist. Perhaps better to say creationism rests on beliefs that <i>it's proponents<i> do not hold open to falsification. It's dogma.



#5017: — 08/04  at  07:33 AM
BTW for folks who aren't had enough creationism and want to get in on a real time, live debate on this issue, Joe Carter is discussing it on his evangelical blog:

http://www.evangelicaloutpost.com/

And IDCist Rusty Lopez is smack talking our beloved DR. PZ Myers here:
http://newcovenant.blogspot.com/

See I figure when you're being smack talked by people you don't know Paul, it represents some measure of success.



's avatar #5018: Ben — 08/04  at  08:04 AM
I dunno DS, I think his entry title sums the whole matter up in a neat little package.

Why should creationists bother with science?...

Why indeed...

"The great trouble is that the preachers get the children from six to seven years of age and then it is almost impossible to do anything with them." --Thomas Edison.



#5019: Rusty — 08/04  at  09:08 AM
Why indeed...

Read my post to find out why.

BTW Dark, please define smack talking?



's avatar #5020: Ben — 08/04  at  09:17 AM
Oh, I read it. Something about fingers-crossed and high hopes for the future. Meanwhile, we Secular Scientists© continue to wait with bated breath.

please define smack talking?

I believe it was Huggy Bear's favourite pastime.

"The great trouble is that the preachers get the children from six to seven years of age and then it is almost impossible to do anything with them." --Thomas Edison.



#5021: — 08/04  at  09:31 AM
Rusty I believe the term actually originates from pro-wrestling, but I'm really not sure. I think it means a sort of good natured 'challenge', one crafted for both rhetorical purposes and to evoke a response.



's avatar #5022: PZ Myers — 08/04  at  10:01 AM
Ho hum. It's hard to take either of those two guys seriously. I don't see any reasonable creationist models out there, so mere promises that they're going to come up with one don't impress me.

PZ Myers
Division of Science and Math
University of Minnesota, Morris



#5026: — 08/04  at  10:49 AM
Benj, you're right, but what I wanted to articulate was a real tension within creationism that makes it so wacky. That is, it tries to maintain its allegiance to a pre-modern, pre-scientific metaphysics in which there are a priori principles on which everything else rests. (Think Aristotle, Aquinas . . . ) And at the same time, it tries to do from within the framework of modern science, which has by and large (sometimes explicitly and sometimes implicitly) rejected the very distinction between the a priori and a posteriori. (Some very good philosophers have argued that even laws of logic should be considered open to revision, at least in principle.) So creationists need to advance their claims as a priori and a posteriori at the same time, as both immune to criticism and based on what they take to be solid evidence. That's why arguing with creationists can be so frustrating.

I hope this isn't construed as an apology for creationism. I'm just trying to wrap my head around it from a philosophical and pop-sociological angle, rather than a strictly scientific one.



#5028: Joe Carter — 08/04  at  10:53 AM
Ho hum. It's hard to take either of those two guys seriously. I don't see any reasonable creationist models out there, so mere promises that they're going to come up with one don't impress me.

You crack me up, PZ. I love how you dismissed my "model" without even knowing what my post was about. It's really hard to take some seriously when they don't even bother to find out what they are rejecting.



's avatar #5029: PZ Myers — 08/04  at  10:54 AM
It's a good thing to try and see things as others do, but be careful your head doesn't get stuck that way.

PZ Myers
Division of Science and Math
University of Minnesota, Morris



's avatar #5030: PZ Myers — 08/04  at  11:02 AM
Joe: I read your article, and Rusty's. There's no there there. You're just whining that you can't comprehend the scientific literature, while Rusty is claiming that that clown Hugh Ross is a "scholar", building good scientific models.

I'm happy to review any attempts to take a scientific approach to origins, as in Nelson's case, and I'm also willing to dismiss them when they fall so far short of their declared aspirations.

PZ Myers
Division of Science and Math
University of Minnesota, Morris



#5050: Rusty — 08/04  at  04:32 PM
Objective to the core, Paul? http://newcovenant.blogspot.com/2004/08/objective-scientists.html

scholar: 1) a learned person.

Hugh Ross
B.Sc. (1967) in Physics, University of British Columbia
M.Sc. (1968) in Astronomy, University of Toronto
Ph.D. (1973) in Astronomy, University of Toronto



's avatar #5051: PZ Myers — 08/04  at  04:48 PM
Oh, boy. Dictionary definitions. You know someone's lost it when they go running to Webster's to 'prove' their point.

Yes, objective. I don't judge scholars or scientists by their credentials (credentialism is such a creationist practice...) but by what they say and do. And Ross is one goofy guy. He's a notch above those deranged Young Earth Creationists, but that isn't saying much. The Reasons to Believe website is one long exercise in rationalization, attempts to force reality to conform to biblical babble, and is the antithesis of scientific thinking.

PZ Myers
Division of Science and Math
University of Minnesota, Morris



#5058: Rusty — 08/04  at  06:18 PM
You know someone's lost it when they go running to Webster's to 'prove' their point.

C'mon PZ, you can do better than that.

Of course, you completely ignore the fact that the definition of scholar is independent of how you judge things. But then, that was the gist of my point.

As for Ross' qualifications, I'll make it easy for you: Based on the degrees Ross has attained, it is reasonable to conclude he is a scholar in his field(s) of study regardless of, get this, what you may think of whatever else he says or does.

That's not too difficult is it?

Based on the writings of yours that I've read I feel safe in saying that I think your metaphysical worldview is completely off base; but I wouldn't for a moment try to negate your academic accomplishments by classifying you as a clown "scholar".

P.S. it was The American Heritage anyway.



#5060: DarkSyde — 08/04  at  07:09 PM
Rusty,

Ross uses two basic arguments. One is design of the universe as evidenced by the Strong Anthropic Principle. This argument is irrelevant to evolution. It only addresses physical properties of the universe and it's constituents such as mass of the electron. IOW this could be perfectly valid or completely invalid and evolution would not be in conflict with either.

The other is pretty much the same recycled YEC level stuff you see. No trannies, probability args for abio, how does evo explain X; same stuff you'd probably reject if you read it on Hovind's site.



's avatar #5062: PZ Myers — 08/04  at  08:17 PM
Rusty: there are sources, and then there are sources. The dictionary is a very poor source, unless you're using it to figure out how to spell something or get some idea of the meaning of a word.

You're doing the same thing every creationist I've ever met does: ask 'em what some big-wig's qualifications are, and by reflex, they spew out what degree he's got. Sorry, doesn't count. Instead, they ought to point me at something intelligent and, well, scholarly that they've done. For instance, Stephen J. Gould, if you asked for his credentials, was Alexander Agassiz Professor of Zoology and Professor of Geology at Harvard University and Curator of Invertebrate Paleontology in the Harvard Museum of Comparative Zoology—his Ph.D. from Columbia might be mentioned as a formality, but that was it. You are judged by your work in this business. And I'm afraid Ross's work is a joke. As DarkSyde has mentioned, it consists of recitations of creationist cliches.

Go ahead and call him a scholar as defined by the dictionary. It doesn't impress me.

PZ Myers
Division of Science and Math
University of Minnesota, Morris



#5079: Rusty — 08/05  at  08:21 AM
It wasn't meant to impress you.

BTW, using your line of reasoning, how can you, as an evolutionary biologist, determine whether a physicist / astronomer's work is a joke? IOW all you are really saying is that, in your opinion, Ross' hasn't done enough quality scientific work. If you want to use that as your own personal definition of scholar that's fine, but couching it in quotations after the word "clown" is extremely unprofessional.



's avatar #5082: PZ Myers — 08/05  at  08:42 AM
I look at the work: there are usually signs that someone claiming to be a physicist is a crackpot that even we ignorant biologists can recognize. Claims of persecution, delusions of grandeur, sweeping claims to revolutionize the entire field, obvious contradictions with known facts (for instance, offering proof that the universe is only 6000 years old), all make it easy to see that something's wacky.

It is true that there can also be subtle errors in a physicist's or astronomer's work that I am not competent to detect. I have to rely on the consensus of experts in the field in that case.

You do realize that Ross is one of those pedestrian creationists who makes obviously false claims about biology that even non-experts have no trouble recognizing, and that the experts in the field he claims to be competent in think he's a nutcase, right?

And it's more than a lack of quality. My own work, for instance, isn't going to set the world on fire, but I think it's interesting and am striving to do it well. Ross's work isn't just low-level, every-day scientific work, it is absurd nonsense that attempts to negate the results of almost every single biologist since Darwin. "Clown" is a kind word to use for him.

PZ Myers
Division of Science and Math
University of Minnesota, Morris



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