No Mystery in
the NCSE
In 2002 a video entitled “Unlocking the Mystery of
Life” (“UML”) was released by Illustra Media.
Following this release, the National Center for Science Education
(“NCSE”), which is dedicated to “defending the teaching of evolution in the
public schools,” dedicated a portion of its website to a critique of UML.
This critique enjoys a prominent link on NCSE’s
homepage and currently consists of (i) an exposition of the relationship
between Illustra Media and Discovery Media entitled “Unlocking the Mystery of
Illustra Media,” (ii) a page indicating that UML has been enthusiastically
received and is being promoted by a number of Christian/creationist
organizations, (iii) a short disclaimer issued by WNYE upon airing UML, (iv) a
short statement issued by Bob Park of the American Physical Society, and (v)
letters by Andrea Bottaro to WNYE and by Daryl Domning to Maryland Public
Television.
The NCSE’s critique of UML is an interesting bit of
investigative work and provides a nice smorgasbord of ad hominem attacks and
genetic fallacies. However, other than
a couple of points raised in Domning’s June 11, 2003 letter and Bottaro’s June
30, 2003 letter, I had trouble finding any substantive critique of the
documentary.
As a result, in July 2003 I wrote to both Domning and
Bottaro, and they both responded with very kind email letters that confirmed
the substance of their letters posted on the NCSE site. I am appreciative of Domning and Bottaro
taking time to respond to my inquiries and to clarify their positions. I also wrote to the NCSE and inquired
whether any substantive scientific critique of UML would be forthcoming, and
was advised that a critique of the science contained in UML would be posted “in
the very near future.” I realize that
everyone is busy and that the ensuing silence may be occasioned by a lack of
time, but it is now mid November and there has been no further scientific
critique posted.
Given the reactions generated by UML, I was
intrigued to finally run across a copy in the local library last week and
promptly watched it. I assume that I
viewed the same version critiqued by the NCSE, and having read the NCSE
postings, as well as the further correspondence from Domning and Bottaro, I was
prepared to be disappointed with UML.
On the contrary, however, I found UML to be a quality production that
provided a good introduction to intelligent design and some of the problems
with traditional evolutionary theory.
As a result, I felt it might be appropriate to respond to some of the
criticisms of UML posted on the NCSE website.
I will ignore for present purposes the numerous ad
hominem attacks and genetic fallacies that constitute the bulk of the NCSE’s
critique, and will limit my remarks to the few substantive issues raised by
Domning and Bottaro.
Domning’s
Letter
Domning charges that UML was “subtly designed to
mislead,” and cites 5 specifics examples.
For ease of discussion, I will quote Domning’s statements and then
provide my take on each.
“The first person presented
onscreen was Philip Johnson, a key figure in the ID movement. The rest of the program featured ID
advocates with scientific credentials, and Johnson reappeared toward the end to
state his own definition of ‘science,’ as though he were himself a leading
scientist. Viewers were never told that
he is, in fact, a professor of law.”
In fact, Johnson appears a few times in UML, and is
quoted twice. The first time he is
quoted, he is clearly listed as “Professor of Law, UC Berkeley.” The second time, he is listed as “Author,
Darwin on Trial.” Thus, there is no
deception in the references to Johnson’s credentials.
Johnson’s statement regarding science is: “Now
that’s my definition of good science – it’s observation of the facts.” While admittedly this definition may be
incomplete, the context of Johnson’s statement, as well as Johnson’s point in
making the statement, is that scientists should be willing to look at data
objectively, without preconceived assumptions, and go where the data leads
them. It is unclear to me how a call
for “observation of the facts” might be objectionable to scientists.
“The animation sequence of
the voyage of HMS ‘Beagle’ gave the clear impression that the expedition
touched only at the Galapagos Islands – ignoring the fact that it spent most of
its time exploring the coasts of South America and other Pacific and Indian
Ocean islands. This inaccuracy planted
the subtle and false impression that Darwin’s evolutionary views were derived
from only a few observations made in only one locale, when in fact they were based
on widely-gathered data of many kinds.”
I agree with Domning that the animation sequence
creates an inaccurate impression.
Domning and I have corresponded about the brief program time allotted
for UML, the need to edit material and keep things short, and so on. Certainly the purpose of the animation
sequence is not to provide an exposition of the Beagle’s voyage, but to provide
a bit of background on Darwin’s theory.
In addition, UML does discuss some of Darwin’s other endeavors, such as
his observations of domestic breeding, in particular pigeon breeding, which
formed an important part of his Origin of Species. Thus, on balance, I do not think there is any reason to believe
that the animation sequence is part of a subtle plot to mislead. I do agree with Domning, however, that UML
should have taken a few extra moments to mention the greater voyage, as well as
some of Darwin’s other observations during the journey.
“The lengthy discussion of
molecular biology made reference to ‘a feature of molecular machines known as
irreducible complexity’ – as though this concept were a standard one accepted
by all molecular biologists as a ‘feature’ of the real world. In fact, the term ‘irreducible complexity’
is used only by the handful of ID proponents (Michael Behe in particular), and
its validity has been refuted, repeatedly and in detail. It is not used at all in the mainstream
scientific literature. No contrary views
were noted, however.”
There is a bit of equivocation going on here. The fact that certain biological systems
need all parts to function and that removal of a part from such systems
jeopardizes function is a true feature of the real world, and is in fact
accepted by most biologists. The question
is not whether such systems exist, but whether a Darwinian mechanism can
explain their existence. This
distinction was made quite fairly in UML.
Specifically, Behe argues that a Darwinian mechanism
cannot explain the existence of these systems, and therefore coined the term
“irreducible complexity” to indicate that successive slight variations, which
are what Darwinian theory requires, could not account for the existence of
these systems. It was clear from Behe
and others quoted in UML that this represents a minority viewpoint in contrast
to the standard evolutionary paradigm presented throughout the educational
system at large. UML acknowledged that
the standard evolutionary paradigm is “generally assumed” in biology and is
“widely accepted.”
Domning charges that irreducible complexity has been
“refuted, repeatedly and in detail.” I
assume this is a reference to weak attempts, like those by Kenneth Miller, to
explain the existence of these systems on evolutionary grounds. I should admit here that my use of the word
“weak” is from the viewpoint of an outsider looking at the facts. However, if one is committed to a
materialistic philosophy that a priori
excludes the most likely explanation, and if one must explain the existence of
these systems by reference to a purely naturalistic evolutionary mechanism,
then Miller’s efforts might even look like a “valiant” attempt. In either case, Miller’s efforts fall far
short.
Darwin acknowledged that if an irreducibly complex
system could be found, his theory would “absolutely break down.” However, despite the widespread existence of
these systems, keepers of the evolutionary faith are reluctant to admit that
the theory has broken down, and instead prefer to deny the existence of the
systems themselves. It’s the old rule
of blame the data, not the theory.
“A major contention of the
program was that without DNA there can be no self-replication of molecules, and
hence no natural selection. No mention
was made of the widely-discussed possibilities that self-replication of RNA or
even simpler organic molecules could have preceded the synthesis of DNA.”
This discussion of the self-replication problem
Domning refers to is in the context of origins of life (“OoL”) research. True, there are widely-discussed possibilities
in scientific literature about things that could have preceded the synthesis of
DNA. OoL possibilities have been
discussed for decades, from Darwin’s “warm little pond,” to Oparin’s chemical
evolution, to the Miller-Urey experiment, to Kenyon’s and Steinman’s
biochemical predestination, to more recent fashionable ideas like Stuart
Kauffman’s self-organization or the hypothesis of an “RNA World.”
What evolutionists fail to see, however, is that
none of these theories accounts in any way for the information content in
DNA. To address Domning’s specific
complaint, it makes no difference whether RNA preceded DNA. The RNA World hypothesis is a
mildly-interesting idea, borne out of frustration with other OoL ideas and an
effort to avoid the DNA problem, but it is completely impotent to explain the
existence of genetic information.
The point of the OoL segment on UML is to give a
general background on OoL, from Darwin to Oparin to self organizational
theories, and to give some personal background on Dean Kenyon and his growing
frustrations with OoL research carried out under purely materialistic
assumptions. I agree with Domning that
UML purposely fails to discuss the RNA World hypothesis. However, I do not agree that it is the
result of an intent to deceive, but rather an editorial decision to not waste
time on all the various and sundry OoL ideas that do not resolve any of the
fundamental origins questions anyway, particularly not the existence of genetic
information.
“A telling contrast between
ID and real science was inadvertently revealed in the quotes from Darwin in
which he emphasized testable predictions of his theory – e.g., that no complex
organs would be identified that could not have been formed by successive slight
modifications of simpler ones. (In
fact, no such complex organs have been identified, including the
much-ballyhooed bacterial flagellum, whose simpler origins have been outlined
by Kenneth Miller and other molecular biologists.) ID, in contrast, has made no testable predictions, on this
program or elsewhere, and for this reason it is disregarded by most
scientists.”
I am not sure Domning’s last statement qualifies as
a substantive critique, but I will briefly address it anyway. The humorous thing about citing Darwin’s emphasis
of “testable predictions” is that Darwin’s theory, which by its very nature
deals with historical events, is itself not subject to empirical testing in any
meaningful sense. Further, in contrast
to Domning’s assertion, numerous organs and systems have been identified that
cannot be adequately explained by Darwin’s theory. However, rather than showing how these can actually be created,
evolutionists follow Darwin’s example of hand waving and misdirection, coupled
with cute bedtime stories of how organism x
might have evolved over time to organism y,
just don’t ask for any details, please.
Finally, Domning is wrong to assert that intelligent
design is not testable. Intelligent
design would die a quick death if it could be shown that information content
could be produced by random, naturalistic factors. Thus far, no-one has offered any evidence on that score.
Bottaro’s
Letter
Bottaro’s letter and its related attachment are much
longer than Domning’s letter, but contain only three substantive scientific
points. Two of these – OoL hypotheses
and irreducible complexity are similar to Domning’s critiques, but I will
address Bottaro’s wording as well.
“The most glaring omission
deals with UML’s discussion of Origins of Life (OoL) science. The only non ID-based views on OoL discussed
in the video are those proposed, in the late ‘60s,
by one of the current ID proponents, Dr. Dean Kenyon. According to UML, those models have been later shown by Kenyon
and colleagues to be insufficient to explain key aspects of early molecular and
cellular evolution. In fact, most of
Kenyon’s original views have long been superseded by more thorough, and better
empirically supported, scientific hypotheses – indeed, it was those hypotheses
and evidence that led to the demise of Kenyon’s ideas in scientific circles
long before ID Creationism appeared on the scene. Alas, what is arguably the
current (and has been for more than a decade now) favored hypothesis about OoL,
the so-called “RNA World” model, finds no mention whatsoever in UML. This is not surprising, perhaps, since the
objections raised in UML by ID proponents to Kenyon’s original theory would not
stand against this new model. Thus, the
viewer is given the false impression that the current scientific choice is
between ID Creationism and its outright miraculous Origin of Life, or Dr.
Kenyon’s outdated 1960’s theory. Of
course, our understanding of OoL is still very limited, and highly speculative. Nevertheless, it is far more advanced and
scientifically solid than the UML parody would want its audience to believe.”
Actually, UML does discuss Darwin’s “warm little
pond” musings, and Oparin’s chemical evolution, as well as Kenyon’s biochemical
predestination. It is appropriate that
chemical theories should have received most of the discussion, as Oparin’s
theory and the subsequent Miller-Urey experiment are still standard OoL fare in
biology textbooks.
Bottaro makes much of the fact that Kenyon’s ideas
were superceded before intelligent design came along. This is true, and is frankly acknowledged in UML: “As Kenyon
re-evaluated his theory, new biochemical discoveries further weakened his
conviction that amino acids could have organized themselves into
proteins.” Kenyon himself states: “The
more I thought about the alternative that was being presented in the criticism,
and the enormous problem that all of us who worked on this field had neglected
to address – the problem of the origin of genetic information itself – then I
really had to re-assess my whole position regarding origins.”
The whole point of this segment is that science has
no explanation for life without genetic information. As Stephen Meyer asked in UML: “What do we make of the fact that
there is information in life? . . . That’s the fundamental mystery – where does
that information come from?” And Scott
Minnich pointed out: “This problem is never addressed by opponents of the
irreducible complexity argument.” Miller
certainly does not address it in his co-option musings, and Domning and Bottaro
do not address it either.
Indeed, Bottaro seems to miss this point altogether,
and conveniently ignores the fact that none of the currently-vogue hypotheses
regarding OoL – whether panspermia, volcanic pools, hydrothermal vents, mud
globules, or an RNA World – provide any answer at all to the source of the
genetic information contained in DNA.
Thus Bottaro is simply incorrect to suggest that the RNA hypothesis
would respond adequately to the concerns raised about Kenyon’s theory.
Ultimately, Bottaro acknowledges that “our
understanding of OoL is still very limited, and highly speculative.” I couldn’t agree more, and thus find it
nether surprising nor offensive that UML did not waste additional time talking
about the latest “highly speculative” OoL fashions, each of which is impotent
against the real question of information content.
“Other mistakes in UML
include an equally superficial, almost mockingly simplified discussion of
cooption, a crucial evolutionary mechanism for which in fact significance evidence
exists in the biological world. UML’s
‘experts’ even commit a basic error regarding the role of nucleic acids in the
cell, which are presented as uniquely involved in genetic information storage
and transfer, while it is now well known that they are directly active in
crucial molecular processes functionally comparable to those carried out by
protein enzymes – a key piece of evidence in favor of the ‘RNA World’
hypothesis mentioned above (and the possible reason why it also went
unmentioned).”
I have to say I was actually surprised that UML even
discusses co-option. I do agree with
Bottaro that UML’s treatment of the subject seems a little patronizing, but it
is difficult not to be cynical if co-option is the best that evolutionary
theory can do. The basic idea of
co-option is that an organism can take parts already in existence to construct
a new system. (I use “construct” very
vaguely here to be nice and to understate the enormity of the problem. “Construct” sounds like some kind of plan is
in place, which of course evolutionary theory cannot have. In reality, the organism is left to, what
shall we say, borrow, mutate into, morph into, miraculously adopt,
whatever.) Co-option is a nice idea,
but only works if all the parts are available – within the same organism and at
the same time.
More important, as adequately addressed in UML, is
the fact that genetic instructions are required to carry out the construction
of the new complex system that is made up of the co-opted parts. Further, other molecular machines and
processes are necessary to regulate the construction process itself. It is hard to take co-option very seriously
when it doesn’t even address the essential questions.
Finally, I am not sure that UML gives the impression
that the only function of the nucleic acids is information storage and
transfer. Bottaro is no doubt referring
to a statement by Jed Macosko that “all the day-to-day jobs – cleaning up the
cell, making energy – it’s all proteins.”
This statement may be an inaccurate over-generalization, and if so,
Bottaro is correct to take Macosko to task.
However, the point of the segment, and the context of Macosko’s
statement, is that proteins are critical to life as we know it, and that genetic
information is required to properly assemble these proteins. Again, despite Bottaro’s protestations, the
RNA World hypothesis is not discussed because it is irrelevant to explaining
how the genetic information required for the formation of proteins came into
being in the first place.
“The crucial argument
underlying the whole ID philosophy, widely discussed in the video, is the
concept of ‘irreducibly complex’ systems, and the purported impossibility of
conventional evolutionary mechanisms to generate them. Although it was quickly rejected by
biologists on theoretical and empirical grounds, ‘irreducible complexity’ has
remained the main staple of ID Creationism.
Ironically, this argument was just recently delivered a fatal blow in
the prestigious science journal Nature, where a computer simulation based
entirely on evolutionary principles (undirected random mutation and selection)
was shown to be able to generate ‘irreducibly complex’ outputs.”
Actually, a more fundamental question is that of
specified complexity and information content.
These points are regularly ignored by evolutionists, and are ignored by
Bottaro as well. Nevertheless, the
concept of irreducible complexity is an important challenge to evolutionary
theory and deserves to be addressed.
Bottaro charges that irreducible complexity has been
rejected on “empirical grounds.” This
is simply false, as there is no empirical evidence whatsoever to indicate an
evolutionary path to complex systems.
There may be some theoretical ideas and a few nice stories out there,
but certainly no experimental empirical evidence. Bottaro’s suggestion that a computer simulation delivered a
“fatal blow” to the idea of irreducible complexity is also inaccurate. Invariably these simulations incorporate the
very thing that they are trying to prove can arise through random natural
processes: information content and a path to a complex system plan.
If Bottaro accepts co-option stories and inadequate
computer simulations as a “refutation” of irreducible complexity, then Bottaro
is willing to accept a much lower level of proof for evolutionary theory than
the proponents of intelligent design have offered for their position.
Conclusion
UML is a well-made introduction to intelligent design,
with appropriate discussion of some of the key difficulties with traditional
evolutionary theory. While the
documentary could no doubt have been improved in some respects, like the
animation of the HMS Beagle voyage or clarification of the expanded role of
nucleic acids, it certainly was not “subtly designed to mislead” as Domning
charges, or a “systematic distortion of mainstream science” as Bottaro charges.
The key points raised by UML are that (i) certain
biological features exhibit a complexity and integrated functionality that
cannot be explained by traditional evolutionary mechanisms, and (ii)
information content cannot be generated by random materialistic processes and
is best explained by reference to an intelligent source.
Notwithstanding Kenneth Miller’s prolific
imaginations on the first point, irreducible complexity remains a significant
challenge to evolutionary theory, as it has from the day of Darwin. On the second point, there is not one iota
of credible evidence that evolutionary processes can generate the information
content stored in DNA. This is the
fundamental issue raised by intelligent design, and is the point on which
intelligent design must be engaged and refuted by the scientific community.
A moment’s reflection by the objective observer
would be sufficient to acknowledge that information content presents a very
serious challenge to evolutionary theory that needs to be addressed. Unfortunately, Domning, Bottaro, and the
NCSE reveal themselves as less than objective observers, as they try to deflect
attention from this glaring problem through a series of lesser issues and
editorial complaints.
I am still waiting for the further scientific
critique of the key issues raised by UML as promised by the NCSE, but I am
beginning to suspect that a detailed scientific critique will not be
forthcoming any time soon.
Eric Anderson
November 11, 2003