14] Real Scientists Do Not Use Terms Like “Darwinism.” The word “Darwinism” is a derogatory term used by creationists, intelligent design supporters, and other opponents of evolutionary theory that has no real meaning except as a rhetorical device to discredit evolutionary biologists.
Design thinkers sometimes use the term “Darwinism” for the sake of brevity, but we are obviously aware that it is not t
he original nineteenth century historical version of Darwin’s thought which is at stake here.
Nor is the suggested appeal to
“no true scientist” appropriate. As the New World Encyclopedia article on “Darwinism”
remarks:
Darwinism and other -isms
It is felt by some that the term “Darwinism” is sometimes used by creationists as a somewhat derogatory term for “evolutionary biology,” in that casting of evolution as an “ism”—a doctrine or belief—strengthens calls for “equal time” for other beliefs, such as creationism or intelligent design. However, top evolutionary scientists, such as Gould and Mayr, have used the term repeatedly, without any derogatory connotations. [NWE, art. "Darwinism," Oct. 23, 2005, acc. Nov. 11, 2010.]
We see here a now very familiar, unfortunate rhetorical tactic. Whenever a term wanders out of the world of journals and textbooks into popular usage, and is picked up by critics of evolutionary materialism, proponents of Darwinism tend to deride those who use it, on the claim that such terms are not used by “true scientists.”
If “no true Scotsman” is a fallacy, so too is “no true scientist.” And, all the moreso because any number of Design thinkers, old and young earth creationists, as well as other critics of the
Modern Evolutionary Synthesis (aka
“[Neo-]Darwinism”) more generally, do have relevant, earned academic qualifications and credentials. The real issue is the balance of the case on the merits, not who uses what terms.
The main object of ID criticism of “Darwinism” is usually classical neo-Darwinism, aka “the modern synthesis,” which tries to explain biological information in the main in terms of the dynamic:
RV + NS –> DWM
(Random [or, "chance"] genetic Variation plus Natural Selection acting together yield descent with modification. This has been observed at micro-level, and has been extrapolated — without
direct observational support — to the macro-level of body-plans. Unfortunately, on the strength of the former, the latter is too often presented as an empirical “fact,” often using the comparison that it is as certain as gravity and the orbiting of planets around the sun. The proper comparison, though, is not the
observed orbiting of planets or falling of unsupported apples, but he far more speculative and tentative
models of Solar System origins.)
ID proponents acknowledge that Darwinian mechanisms operate within a limited scope (changes in beak sizes among finches as a result of environmental pressures; development of resistance to antibiotics by certain bacteria). But they dispute that the mechanism responsible for these micro-evolutionary changes is also responsible for macro-evolutionary changes. In other words, ID proponents agree that Darwinian processes can change the size of finch beaks across generations, but they dispute that those processes are solely responsible for the existence of finches, or birds or dinosaurs, or land-animals in the first place.
At the macro-evolutionary level, ID proponents point out that Darwinism is too often rooted in an evolutionary materialist metaphysical presupposition imposed on science and posing as a scientific theory; as Richard Lewontin notoriously admitted in his infamous 1997 NYRB article,
“Billions and Billions of Demons”:
It is not that the methods and institutions of science somehow compel us to accept a material explanation of the phenomenal world, but, on the contrary, that
we are forced by our a priori adherence to material causes to create an apparatus of investigation and a set of concepts that produce material explanations, no matter how counter-intuitive, no matter how mystifying to the uninitiated. Moreover, that materialism is absolute, for we cannot allow a Divine Foot in the door.
Grounded in materialistic ideology, such Darwinism holds that purposeless, mindless, physical mechanisms, manifested as small genetic changes, can drive the evolutionary process to produce all observed complexity and biodiversity on earth. As such, it interprets all evidence in light of its own materialistic ideology and rules out, in principle — indeed “a priori,” any possibility that any part of the evolutionary process could have been designed.
Like the mythical bandit Procrustes, who reshaped the bodies of his unfortunate visitors to fit his iron bed, Darwinism reshapes biological evidence to fit its iron clad world view.
Design thinkers are also perfectly aware that many new forms of evolutionary thought exist, but unfortunately they are typically warped by the same a prioris.
The same NWE article on Darwinism is therefore correct to further observe:
There are some scientists who feel that the importance accorded to genes in natural selection may be overstated. According to Jonathan Wells [NB: a design thinker and critic of Darwinism], genetic expression in developing embryos is impacted by morphology as well, such as membranes and cytoskeletal structure. DNA is seen as providing the means for coding of the proteins, but not necessarily the development of the embryo, the instructions of which must reside elsewhere. It is possible that the importance of sexual reproduction and genetic recombination in introducing variability also may be understated.
UD’s resident Darwinist and critic, the respected Allen MacNeill, adds that in addition to the classic Neo-Darwinian synthesis of the 1920′s – 40′s, modern evolutionary thought embraces:
separate but related set of interconnected theories explaining the origin and modification of the phenotypic characteristics of living organisms, consisting (at a bare minimum) of the mechanisms of natural selection, sexual selection, genetic drift, and neutral molecular evolution in deep geological time, grounded (at least in part) in theoretical mathematical models of population genetics, depending on multiple sources of heritable phenotypic variation, and supported by inference from multiple sources of empirical evidence, including field and laboratory research in the fields of biochemistry, cell biology, comparative physiology, developmental biology, ecology, ethology, genetics, neurobiology, and physiological ecology. [
Comment,"Darwinism" UD discussion thread, 11/10/2010, 10:51 pm.]
It is important to understand, however, that while ID arguments are often targeted to classical neo-Darwinism, they are perfectly valid for all forms of explanatory theories of biological information which “a priori” do not admit the possible intervention of a design process.
In other words, according to ID theory, no observed unintelligent causal mechanism ever proposed for the generation of information — whether based on chance, necessity, a combination of the two, or any other blindly mechanical form of “cause” — is credibly capable of generating the CSI in biological information on the scope of our observed universe; which is often estimated to comprise about 10^80 atoms and to have existed for some 13.7 billions of years.
(This, of course, can in principle be easily empirically falsified by simply producing a case where on reliable observation, such forces of undirected chance plus necessity have credibly generated CSI. But, while there are literally billions of cases of intelligent causation of such CSI [think: Internet], there are notoriously, no credible cases of chance and necessity alone generating CSI. For instance, Genetic algorithms are intelligently designed, and use constrained random walk searches within islands of function; the problem for evolutionary theory is to get to such islands of function in the vast sea of non-functional but chemically possible DNA and amino acid chain molecules, within the material and temporal resources of the Earth, much less the observed cosmos. The deep isolation of such islands of function leads to the confident stance by design thinkers on the matter. For, the only observed and
probabilistically plausible solution to the coded, functionally specific information generation problem is intelligently directed configuration; aka, design.)
One of the results of such heterogeneity of contemporary evolutionary thought has been that ID is often accused of dealing with one form and not with another, be it classical Neo-Darwinism or the most recent examples of what we may call:
Neo-Neo-Darwinism.
The truth is much simpler:
as a causal theory about the origin of biological information, ID is both a criticism and an alternative to all theories which try to explain biological information by purelyunguided mechanisms.
In the final sense, any list of “engines of variation” that “permits”
only unguided mechanisms exclude design, and is thus based, at the basic causal level, on
necessity or
chance or some mixture of the two. This is bias, not proper science, as,
before the facts can speak, it excludes another known “engine of variation” for contingent objects: design. So, we may directly see that, the counter-arguments and alternatives provided by the ID approach apply equally to classical Neo-Darwinian theory and all of these alternatives.
The reason why ID criticism is usually more specifically directed to classical Neo-Darwinism is that, in the end, RV + NS remains the most widely used, most detailed causal model of unguided evolution. It is difficult to analyze in detail alternative models which have never been detailed to the point that they can be really critically evaluated, and so the design theory commentary on these newer models often remains at a very generic level. But, we must underscore:
ID arguments are equally valid for all cases: all forms of “random variation” are just that: random, and so must obey the laws of statistics, and all forms of “necessity” – including Natural Selection (as it is usually presented) – must be expressed in a credible and consistent logico-mathematical model.
Unless and until new causal principles are discovered, it has been immemorial since the days of Plato in his The Laws, Book X, that
design is the only known alternative/complement to
chance and
necessity. And so, the only truly valid scientific approach is one that accepts at the outset the
possibility of design as well as chance and necessity, and then seeks reliable signs that can differentiate the role played by each for the
key aspects of life-forms.