Evolution’s Mistress
This is an Altum essay by Max Leyf.
“Teleology is like a mistress to a biologist; he cannot live without her but he’s unwilling to be seen with her in public.” (1)
—J.B.S. Haldane
CHARLES DARWIN is hailed today, together with the likes of Galileo and Newton, as one of the patriarchs of our modern scientific worldview. Countless scientists have sung the praises of the evolutionary theory that Darwin set forth in the latter half of the nineteenth century, beginning the the meteoric On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life in 1859 and continuing with The Variation of Animals and Plants Under Domestication in 1968 and The Descent of Man, and Selection in Relation to Sex in 1871. The first of these works laid out his “theory of evolution through natural selection,” as it is called. (2)
The second explored the manifest ability of human selection in more or less controlled environments to alter the features of animals and plants and argued that an analogous process was operative in nature albeit without the foresight and intention provided by human selection. The third of these works applied the theory of natural selection to the human being, arguing that the same processes by which sphagnum moss and paramecia happened to emerge also led, by chance, to the existence of humanity. Interestingly, Darwin also proposed another parallel process of selection in this work, called “sexual selection,” that is generally regarded as peripheral to evolutionary theory but which entails a very different conception of the origin of species than the ordinary view of the so called “Neo-Darwinian synthesis,” which merely indicates the interweaving of Darwin’s theory with Mendelian genetics. I will find occasion to elaborate on this point later in the course of this exploration. Suffice it here to observe that Darwin’s theory is generally hailed as one of the great advances in scientific history and its author has entered into the quasi-mythic company of other great figures science’s long march of progress. Stephen Jay Gould called Darwin’s theory “one of the half-dozen shattering ideas that science has developed to overturn past hopes and assumptions, and to enlighten our current thoughts.” (3) Ernst Mayr left no room for equivocation about the place he awarded to it among the history of ideas when he declared that “The theory of evolution is quite rightly called the greatest unifying theory in biology.” (4) Peter Medawar granted no quarter to its detractors when he opined that, “For a biologist, the alternative to thinking in evolutionary terms is not to think at all.” (5) Indeed, Darwinian evolutionary theory is generally taken to be a settled datum vis-á-vis the origin of lifeforms on the Earth, and if you ask a member of polite society today, he will proceed as though the matter had been settled long ago and could countenance no further objections. (6) In other words, he regards the theory as an observable fact and imagines that only pseudoscientists and religious fanatics would have anything further to say on the subject.
But anyone who attempts to employ a theory in the manner that is only appropriate to observations made in light of that theory has already departed from the path of science, properly so-called. As the master himself observed, “All observation must be for or against a point of view.” (7) It will immediately be objected that “scientists use theory in a manner that is more sophisticated than laypeople and hence I am playing on an equivocation of the term to cast aspersions on the legitimacy of the science.” But the manner in which scientists employ the term is not really more sophisticated than the manner by which it is employed in common parlance. It is not uncommon for particular fields to develop technical and often idiosyncratic meanings for words and the use of the term “theory” in many of the sciences is an example of this. A theory is, in the most essential sense, a way of seeing.(8) A theory is not only intended to explain what can be readily observed without the said theory. Instead, the function of a theory is to disclose a phenomenon to begin with. A great deal more could be said on this point, and I will have occasion to return to it again at a later time. Here, this brief comment alone was warranted in order to preempt a common misunderstanding vis-á-vis theory: to wit, that it can be conceived as merely as an datum of perception rather than the condition and capacity by which observation and perception may proceed and without which they cannot. If it were possible to “extract” a theory from a phenomenon of perception, the perception of the phenomenon would go along with it.
As a rule, proponents of the Darwinian theory affirm it in a manner that would only make sense to treating a finding made in light of that theory. In other words, they do not consider the manner by which a theory does not pertain to the category of scientific fact. Instead, a theory embodies a whole way of seeing, or world-view. In this manner, all scientific facts and observations are transcendentally beholden to their correlative theories. For instance, when the philosopher Daniel Dennett, who has taken up the mantle once bestowed on Thomas Huxley as “Darwin’s bulldog,” makes a statement like the following:
Love it or hate it, phenomena like this exhibit the heart of the power of the Darwinian idea. An impersonal, unreflective, robotic, mindless little scrap of molecular machinery is the ultimate basis of all the agency, and hence meaning, and hence consciousness, in the universe. (9)
It is necessary to consider the theory tacitly operative and subtending the supposed observation of “mindless scraps of molecular machinery.” Obviously, “mindlessness” is not perceptible to sensory observation and neither is it directly measurable by scientific analysis. Instead, it is necessary to possess a “theory of mind” or a “theory of agency” as a condition to observe eventual instances of these phenomena when they do appear. Lacking a theory of mind, no instance of mind will be accessible to perception any more than a person who had never heard of chess could perceive a chessboard were it presented to him. It is an axiom of Darwinian evolutionary theory to discount the existence and hence operation of mind in nature except vis-à-visinstinctual activity directly indexed to survival and reproductive fitness of an organism. That is the reason for the conflict between the Darwinian theory of evolution and any theory of “intelligent design.” The Darwinian paradigm proposes intelligence, and life, for that matter, as a sort of cosmic accident that was purely the result of random events. Tautologically, something must avoid non-existence if it is to propagate through time. Hence, that intelligence and life eventually arrived on the scene, so it is supposed, is the result of “intelligence-like” and “life-like” phenomena that immediately preceded them, which were in turn preceded by “intelligence-like-like” and “life-like-like” phenomena and so on back to the Original Mystery. Obviously, whatever is said about the nature of the universe before our arrival on it, one thing for certain is that it is the kind of universe in which the potential for life was present from the origin. Coming to grips with this point already entails loosening one’s grip upon the Darwinian paradigm.(10)
But let us grant the hypothetical series of events that accidentally consummated in intelligence and life as the Darwinist imagines it—hypothetical given that it defies observation in principle because the sensory organs that we find ourselves equipped withal required the entirety of that very evolution to appear and hence could not have furnished us or anyone else with observations at the times in question—it must be acknowledged that the same series of events could have just as well been the result of an intelligent orchestration and design. Indeed, speaking on an evidentiary basis, neither the fossil record, nor the observable behavior of organisms, would need to be any different to accommodate one of these views over the other, let alone the speculative histories that the scientific imagination is compelled to weave. The only difference is, when presented with the evidence in question, the Darwinist would merely explain its emergence on the basis of his own preferred theory. Namely, that all life is the result of evolution through blind instinctive processes, happenstance, and natural “selection.” This judgement is axiomatic under the Darwinian paradigm and hence it holds irrespective of what that evidence in question happened to be—whether it be the eye of an orca, a chloroplast, a feather in the tail of a peacock, (11) or the fact that the likes of Darwin, Dennett, and Dawkins bother to compose their copious texts arguing in support of Darwinian evolutionary theory.
But there is a further concern with the Darwinian evolutionary theory aside from its ineluctably conjectural nature and the fact that it may not pass the “falsifiability” criterion that Karl Popper advanced as a sine-que-non of scientific theory. (12) Consider Richard Dawkins’ definitive statement on the subject:
Wherever in nature there is a sufficiently powerful illusion of good design for some purpose, natural selection is the only known mechanism that can account for it. (13)
Whereas to the naïve observer, the passage above could only be explained on the basis of the argument that its author intended to advance, by the logic of that very argument, the ultimate reason for its composition can be nothing of the sort. Instead, it must be axiomatically traced back to the genetic fitness that similar activities conferred on their distant ancestors, which natural “selection” identified and preserved through the chaos of generations. In the same way, all organisms in nature, together with every feature of every organism may seem to evince the presence of intelligence by its design, but would belie its true origin. Dawkins elaborates on this view:
Natural selection, the blind, unconscious, automatic process which Darwin discovered, and which we now know is the explanation for the existence and apparently purposeful form of life, has no purpose in mind. It has no mind and no mind’s eye. It does not plan for the future. It has no vision, no foresight, no sight at all. (14)
Hence, the appearance of purpose in nature is, in a certain sense, an elaborate hoax. And of course, so too is the appearance of purpose “outside” of nature or inside of us. I realize the formulation is awkward but let the reader see past my clumsy articulation to grasp the point that I am attempting to elucidate. Namely, that Darwin began by proposing the purposelessness of nature by arguing that blind, natural “selection” could accomplish a task in every way comparable to artificial selection by human purpose. This argumentative arc is captured in his follow-up to On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Lifein 1859 with his The Variation of Animals and Plants Under Domestication in 1968. Consider then, as manifest in the third epochal publication in this series, The Descent of Man, and Selection in Relation to Sex in 1871, where this logic must lead. The selection that appeared to be purposeful in nature, and comparable to manifestly purposeful selection in the case of human breeders, was shown to be blind. But then human beings themselves were shown to be an outcome of this same process. In other words, Darwin’s approach to explain the existence of purpose was ultimately to show that it does not exist.
In most company, it is considered bad form to explain a thing by claiming that the thing wanting of an explanation is not really there. But Dennett has built his career on advancing an argument in every way comparable to this in the context of philosophy of mind and the so-called “hard problem of consciousness.” (15) “The existence of consciousness and first-person experience appears enigmatic and redundant in the context of physicalist accounts of nature and, Q.E.D., consciousness and first-person experience do not exist,” is approximately the logic deployed by thinkers of this persuasion. Dennett, for instance, repeatedly refers to consciousness as a “user-illusion.” (16) Of course, the existence of these things is just as difficult to explain if they are an illusions as if they are real, and, a fortiori, it’s not clear how one would imagine one could get a start at an explanation if what one were proposing—that consciousness did not exist—were true. But it is not the idiosyncratic theories of consciousness and neuroscience that Dennett and other similar thinkers have advanced that are on trial in the present essay, but the Darwinian evolutionary theory.
And yet, the two issues are not really two. After all, mind is an intensification of life, and not something disjunctive with it. Darwin’s theory of evolution was by no means the first theory of evolution. Lamarck (17), von Humboldt (18), Goethe (19), and even Immanuel Kant (20), had all advanced views of evolution before Darwin came on the scene. Darwin’s theory differed only in that it promised an explanation of life without mind by appealing instead to “the blind, unconscious, automatic process” in Dawkins eloquent paraphrase for “natural selection.” As intimated above, the explanation is proffered in bad faith because “selection” entails a teleological disposition whereas the latter is precisely what the Darwinian theory attempted to extirpate from other evolutionary theories. Lamarck, for instance, notoriously postulated that the neck of a giraffe elongated as a result of its constant striving for leaves on the uppermost boughs. That the emerging science of epigenetics is retroactively vindicating Lamarck to a great extent is an import point that I will find occasion to return to later. Darwin, however, attempted to explain the length of a giraffes neck in abstraction from the intentions and mind of the giraffe. Instead, nature was “selecting” for longer necks by arranging environmental influences such that giraffes with longer necks attained competitive reproductive advantage until, over vast spans of time, the grotesque proportions that we know and love had been attained. Of course, the fact that natural selection working over eons of time could explain the appearance of teleology in the structure and behavior of the giraffe begs the question at issue because lacking the teleology inherent in the instinct inherent in virtually all life to survive and propagate its kind, the presumed mechanism of evolution would not be present to begin with. In other words, the mechanism of evolution depends for its function and existence on something manifestly not mechanical but intentional, even if not consciously so. In other words, natural selection can only explain teleology by presupposing it. (21) But something further must be noted in respect to the question of evolutionary trajectory. Why, it must be wondered, did Adam the giraffe not go the route of a zebra and thereby spare his progeny to trouble of thousands of years of evolution? Darwinian theory can never answer this question. It can, of course, offer post hoc rationalizations of given changes. But a theory that makes no viable predictions—in this case, vis-à-vis, future speciation events—fails to fulfill one of the essential criteria of scientific theory altogether. (22)
But even granting evolutionary theory is a viable scientific theory, to conceive of environmental influences driving natural selection still presents two significant problems. First, the organism-environment dichotomy is a false one. Every organism’s environment is comprised of every other organism, and in turn, contributes to comprise the environment of each of those others. “Environment” is, hence, a relative term, comparable to directions like “left” and “right” and not to cardinal directions. Yet the Darwinian theory is only coherent if “environment” is treated as an absolute designation. It makes no sense to say “the environment is exerting some influence on a creature who is itself blindly subject to this influence” when that creature itself is part of the environment. Moreover, organisms are continually shaping and influencing their surroundings. Cyanobacteria created the oxygen bloom that wiped out most of the life on Earth in that time, beavers build dams that divert waterways, and the transformative prowess of homo sapiens is notorious, “replenish the earth,” God said, “and subdue it.” (23).
But the above difficulties are comparatively trivial when set against the fundamental oxymoron entailed in employing the term “selection” to designate the “the blind, unconscious, automatic process” that is being imagined. Either selection is taking place or a “blind, unconscious, automatic process,” but it can’t be both. In the second case, the outcome is due to chance. But “chance” is not an explanation for something, but a tacit admission that an explanation is still wanting. To explain something as random is not necessarily false, but it is to defer having explained it. It is not unlike the old German saw that says “if the cock crows atop the manure pile, then either it will rain or it will not.” Everything seems like it is happening by chance until it is understood. Cold is not a kind of heat, but the privation of it and chance is not an explanation but an indication that an explanation has yet to emerge.
Again, proponents of the theory of natural selection will object that their view is substantiated on the basis of evidence. But I tried to show how the evidence for such a claim, while appearing to ratify the theory at issue, actually presupposes it as a condition to make the observations necessary to substantiate it. It is impossible to gather observational evidence in support of the Darwinian view of life unless one has first come to see the purposeful activity of living things as illusory. However, seeing the purposeful activity of organisms as an illusion was never self-evident. Instead, it was a function of the very theory one is purporting to ratify through the observations.
A still further problem arises in respect to the semantic content of the theory itself. We must ask ourselves how the scientific method could possibly establish that life “has no vision, no foresight, no sight at all” when any evidence for such a claim must already, by its very existence, entail the very intentionality that it purports to deny. After all, neither scientific theories nor evidence for them just falls from trees. Dennett declares that “apparently purposeful life has no purpose in mind.” (24) But where is the scientist in his theory? One of the fundamental tenets of Darwinian evolutionary theory is the common origin of all life, including scientists and philosophers. Once you have rejected the existence of something like purpose or foresight, and supposed to have gathered observational evidence for its non-existence, you can never be certain that a further observation will not disclose the very thing you had resolved to deny, thus upending the entire theory. (25) Similarly, identifying “chance” as the cause of an event is tantamount to conceding that the cause remains unknown because there is not way to distinguish the perception of randomness from mere lack of apprehension.
But in fact, the reasons to be skeptical of the Darwinian theory and its proponents are much more severe than they may at first appear. To illustrate this point, let us imagine that the theory is entirely correct, together with the natural corollary that all of our mental and emotional functions also derive from adaptive and reproductive advantage they conferred on our forbears—a view known under the rubric of “evolutionary psychology.” It would entail that Darwin, Dennett, Dawkins, and the like, by the logic of their own theory, are arguing for it on the basis of adaptive and reproductive advantage, and not on the basis of truth. The only possible criterion for “truth,” in the Darwinian universe, is “fitness.” On this view, all science and philosophy would necessarily be reduced to pretense, because what had professed to be an instance of reasoned dialectic and argumentation surrounding first principles and experimental method was, in fact, an elaborate mating ritual and survival strategy. If the Darwinian theory were true, we would not be capable of knowing it because our minds, axiomatically, evolved to survive and reproduce and not to discover the truth of things. If they managed to hit upon the truth of things, it would be by accident and hence could not really be known, for can someone who doesn’t know whether a thing is the truth really be said to know the truth? A theory transcendentally beholden to premises that it negates is a theory in need of improvement.
Before concluding, I would like to venture a few remarks on the significance of epigenetics and Darwin’s theory of “sexual selection” to the reigning paradigm of the Neo-Darwinian synthesis. Both of these elements challenge the conventional view of “the blind, unconscious, automatic process which Darwin discovered” as the explanation for life’s diversity. Instead, epigenetics and sexual selection re-introduce the phenomenon of purpose, agency, and more generally, teleology as such back into evolutionary theory from the inside, which is where they belong to begin with.
It is a premise of the Darwinian view that the genome of an organism is conserved through its interaction with its environment. The epigenome—that is, not the genome per se but the relative expression or suppression of different genes—can undergo substantial changes brought about directly by that organism’s action and interaction with(in) the environment. This is a straightforward and uncontroversial characterisation of these terms. To this can be added the observation that the given potentialities for behaviour, or affordances, that any organism possesses will determine its “fitness” in respect to a given environment. “Adapt and breed, or die and perish,” as the Darwinian axiom goes. Again, this principle of “natural selection” is understood to be the primary factor responsible for evolution of that organism’s genome according to the paradigm of the Neo-Darwinian synthesis. In other words, if we ask where the genome comes from, the answer is that it is the heritage from the reproductively successful members of the prior generation. Again, the reproductively successful members of a given generation, from which the genome of the next generation are inherited, are those members which are assumed to have been able to draw on potentialities of behaviour best-suited to their environment, broadly construed. And yet, at the same time, the epigenome—operating within the comparatively broad constraints of the given genome—is the primary factor responsible for the given potentialities of behaviour that that organism possesses. Genes only code for proteins if they are active and the genome does not code for activity of itself. Instead the epigenome serves this role of determining the activity or latency of given genes. This suggests a reciprocal interaction of the genome and epigenome. Behavior shapes the epigenome which modulates the genome which determines form and potentialities of behavior for that organism. Notice this series ends where it begins. This connection reveals the active role that an organism contributes in shaping the evolution of its own species, which evolution can no longer be ascribed merely to “the blind, unconscious, automatic process which Darwin discovered.”
Darwin’s theory of sexual selection, if it had been adequately incorporated into the general Darwinian paradigm, would have similarly begun to overturn it for the same reason. In brief, after having presumed to have explained the origin of species through natural “selection,” which was held to function merely on the basis of reproductive fitness and without any appeal to purpose or intention on behalf of organisms, Darwin realized that his theory of natural “selection” in fact entailed the very thing it was celebrated for having circumvented. To wit, organisms actually do select their mates. As a rule, it is often the females of a species that are the more selective and, ipso facto, intentionally participate in the evolution of their species. That is an example bona fide selection and hence I did not place it in quotation marks.
1. quoted in Hull, D. (1973). Philosophy of Biological Science. Prentice-Hall.
2. The five parts of Darwin’s Theory are:
a. Evolution and not static types (Evolutionism)
b. The lineage of all organisms from common ancestors through genealogy (Realgenese)
c. The appearance of new species while retaining the original species (The Principle of Divergence)
d. Evolutionary changes in small steps (Gradualism)
e. The survival of adapted genetic variations and the natural decline of those that are less adaptable (Natural Selection)
3. S.J. Gould, The Flamingo’s Smile: Reflections in Natural History, 1985.
4. E. Mayr, Populations, Species and Evolution, 1970.
5. P. Medawar, The Life Science, 1977.
6. If this were the case, it would not be the first time that the boot was, in fact, on the other leg in respect to the most fundamental issues, and the person most complacently self-assured of his apprehension of the truth in these affairs were in fact the one least possessed of it. In a recent essay, I treated a comparable issue under the rubric of “wisdom” rather than “truth.” Self-evidently, the concepts bear an intimate relation. Wisdom is, in a general sense, condition and manner by which truth manifests in consciousness.
7. Charles Darwin, The autobiography of Charles Darwin: 1809–1882, New York: W. W. Norton, 1861, 161.
8. Our English term stems, as will be familiar to many, from the Greek word theoria, composed of the Greek roots θεωρία, thea “a view, a sight” + horan “to see”).
9. D. Dennett, Darwin’s Dangerous Idea, 1995, 202–3.
10. Statistician William M. Briggs lays out the reason why we ought to summarily reject outright the dismissal of design on a purportedly scientific basis:
“What about the rest of (if you will) creation [beyond man]? That must have been designed, too, in the following analogical sense (if I’m going to be misquoted, it’s going to be here)
You’re asked to design a carnival game for kids, a sort of junior wooden pachinko device. Ball goes in at the top, rolls down a board hitting posts along the way, bouncing to and fro, finally coming to rest in one of four slots at the bottom, A, B, C, and D, which, although it’s not part of the analogy, correspond to certain prizes.
Before the ball is dropped nobody really knows which of the slots will have the ball. All sorts of things will cause the ball to land where it does, from the friction of the ball, board, and posts, the bounciness of and wear on the ball itself, the humidity and temperature of the air, even the gravitational field; and many more things comprising the Way Things Are operating on All There Is (the machine and its environment).
Nobody can track all these causes, yet they must be there, because otherwise how would the ball get where it’s going? One thing is clear, the ball can only land A, B, C or D. It cannot land E nor F nor any other letter because these slots do not exist by design.
Evolution is just like that. However changes occur to an organism, whatever mechanism causes genes to shift, the eventual organism must “land” in, and be caused to land in, some slot, or biological niche if you like. Viable organisms are like the slots of the pachinko game, and non-viable ones—the beasts that cannot live because their genes will not produce a living being in a particular environment—are like the slots that aren’t there.
No scientist knows, and more importantly no scientist can know, that the slots we see weren’t designed, weren’t planned for. And the same is true for the slots we don’t see. The reason is simple: whether the slots were designed is not a scientific question, but a philosophical one. Science can tell us what we’ll see given a set of rules (the Way Things Are), but science, as we learned, must be mute on the big question: why these rules?”
11. As Darwin wrote in a Letter to Asa Gray, April 3, 1860:
“It is curious that I remember well [the] time when the thought of the eye made me cold all over, but I have got over this stage of the complaint, and now small trifling particulars of structure often make me very uncomfortable. The sight of a feather in a peacock’s tail, whenever I gaze at it, makes me sick!” (The Life and Letters of Charles Darwin, Vol. 2, 1911, pp. 90–91).
12. Karl Popper is a well-known philosopher of science who lived in the 20th century. He is famous for postulating the criterion of “falsifiability” for scientific theories. To wit, if a theory cannot be falsified, then it cannot be considered scientific. Popper was adamant that neither Marxism nor Freudian psychoanalysis could meet this criterion. It should probably be observed that neither (1) the belief that scientific theories must be falsifiable nor (2) the belief that science can answer all kinds of questions is falsifiable either. For that reason, the theory of falsifiability must either be incomplete or untrue, by its own standards. Karl Popper also believed that science is suited to answer all kinds of questions and not merely scientific ones. This can never be demonstrated scientifically so instead it must be considered an article of faith.
13. R. Dawkins, Climbing Mount Improbable, 1996, 223. Contrast Dawkins’ view to the one elaborated by Stephen Talbott in his “Biology Worth of Life” project.
14. R. Dawkins, The God Delusion, 2006, 9.
15.I treated this topic more thoroughly in Part I of my book The Redemption of Thinking.
16. We won’t have a complete science of consciousness until we can align our manifest-image identifications of mental states . . . with scientific-image identifications of the subpersonal informational structures and events that are causally responsible for generating the details of the user illusion. (Dennett, Bacteria to Bach and Back, 367.)
17. Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829).
18. Friedrich Wilhelm Heinrich Alexander von Humboldt (14 September 1769 – 6 May 1859).
19. Johann Wolfgang von Goethe (28 August 1749 – 22 March 1832)
20. Immanuel Kant (22 April 1724 – 12 February 1804)
21. as Georg Toepfer, a philosopher of biology at the Leibniz Center for Cultural Research in Berlin observes:
“With the acceptance of evolutionary theory, one popular strategy for accommodating teleological reasoning was to explain it by reference to selection in the past: functions were reconstructed as ‘selected effects’. But the theory of evolution obviously presupposes the existence of organisms as organized and regulated, i.e. functional systems. Therefore, evolutionary theory cannot provide the foundation for teleology.”
22. Together with Popper’s “falsifiability” criterion identified above, another standard criterion of scientific theories is that they make successful predications. Darwinian evolutionary theory is not capable of making accurate predictions. Neither, for that matter, is climate science, and the majority of all contemporary model-driven scientific disciplines. Proponents of these theories will, of course, assure us that they will soon be able to accomplish this, or they will attack this as a criterion of science and claim to be different. There is no reason to enter into this debate here; suffice it to consider what it tells us about a theory that it is not capable of furnishing us with accurate predictions.
23. Genesis 1:28.
24. Interestingly, Dennett himself has recently signed off on a much more teleological view of evolutionary theory than could ever be adduced from his earlier writing, as evidenced by his contribution to this recent essay at Aeon.
25. This difficulty is akin to the halting problem in computation, or the paradox of rejecting a Divine Creator, since no denial can ever be conclusive.
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For an alternative perspective based on Aquinas, see https://www.firstthings.com/article/2012/12/chance-by-design.
I would love to find out how Dr. Ted Davis would respond to this article, since he has contributed to Biologos, which is an evolutionary creationist organization. Would it be possible to ask him to write a counterpoint?
The short answer is, I agree with Steven Barr (see the link above). When certain scientists, and certain anti-evolutionists, claim that evolution driven by “random” mutations is incompatible with purpose/design, both camps are (IMO) loading too much metaphysics onto how mathematically random processes are helpful in modeling various natural processes–including the weather. Is thermodynamics “atheistic,” simply b/c it relies on probability to understand how zillions of gas molecules behave as ensembles?
I agree to some extent with Steven Barr’s analysis of the issue of ‘chance’, which I think can be supported by the observation of Proverbs that man rolls the die (random result) but God determines the outcome. But I am more interested in a response to the multiple misunderstandings the author had of the theory of evolution, the history of the idea, and Darwin’s contribution to the theory. I don’t think it wrong to have criticisms of evolution, but they need to be based on what the theory actually purports.
Thank you for the comments and forgive my lack of responsiveness.
@Prometheus Bound, perhaps you would be obliged to explain the crucial points that I got wrong.
@Ted Davis, re the issue of “randomness,” as S. Barr hinted at in the linked essay, that something is random can never really be more than an epistemic designation and not an ontological one (for lack of a better term) because everything seems random until the logic of it is grasped. that it is useful in respect to predictive modelling to regard some phenomenon as ontologically random doesn’t prove that it is. and even so, I fail to see how this directly relates to Darwinian evolution however, because one thing the theory doesn’t do is make predictions.
Also, I know you said “scientists” so you were not talking about anyone in particular, but for the record, here’s Darwin:
“I have hitherto sometimes spoken as if the variations … were due to chance. This, of course, is a wholly incorrect expression, but it serves to acknowledge plainly our ignorance of the cause of each particular variation”
—Darwin 1899, Origin of Species, Chapter 5
@Max Leyf, evolution does make predictions in much the same way as any other theory, though, like quantum theory, it cannot give exact predictions for a particular future event, since there are stochastic processes involved (i.e. mathematically random events; we can argue the ontology, but it seems that you have already admitted that phenomenologically speaking events can be random). It seems to me that throughout the article from start to finish you do not have a grasp on either the history of evolutionary theory nor the nature of the theory itself. It would require a very long article to counter each point. I will, however, note some specific misunderstandings and would be happy to send you a lengthier critique, since I would love to have constructive criticism on my own understanding of the issues. The first is your suggestion that “natural selection” is a chance process. Mutations are stochastic (they follow probability distributions but are specifically unpredictable), natural selection is a law-like process in which some creatures die because they cannot compete with other creatures that better utilize resources, escape predators, or other factors. So, for example, if on a particular island the fruit on certain trees become harder because of certain climactic or genetic factors, the birds of a certain species on that island that through genetics have the ability to crack and eat that fruit better will get more food and survive better than the birds that cannot do as well. The populations of the former birds will increase at the expense of the latter birds. This is natural selection in a nutshell. How that is teleological is hard to tell, since neither the birds nor the environment are being changed by any intelligent cause that can be ascertained statistically. Here are a few other misunderstandings: 1) you say that sexual selection is opposed to natural selection, but it is actually a part of the theory (though often discussed separately) and in “The Origin” Darwin addresses it. 2) The “Modern Synthesis” was not just an update of Darwin’s theory with Mendelian genetics, it was Mendelian genetics that allowed evolutionists to take Darwin’s theory of natural selection seriously! His theory was out of favor until that point (early 20th century). 3) “Selection” is misunderstood as teleological, because it misunderstands that evolutionary biologists use the word “selection” as a descriptive term (not a personification) simply refering to the process by which some living beings survive and others die in a particular enviroment, preserving a certain population of those living beings. It does not “identify and preserve genetic fitness through the chaos of generations” but is merely a description of the death of those who are less fit than others or the survival of those that are more fit. 4) Darwin did not propose a “blind” process that replaced artificial selection, but in fact had to spend a chapter of his book convincing his audience that artificial selection actually took place – that creatures were malleable. 5) You say that “natural selection” falls apart because the environment must include other organisms that are constantly changing. Darwin addressed this in “The Origin” as part of his theory. In fact he emphasized that the other organisms can be considered a larger influence on the course of evolution and natural selection than the nonliving world. 6) Scientists use the concept of “chance” in a very particular way, and it is not to say a cause is unknown, but that is statistically predictable; most Christians agree that quantum physics, which also works this way, is a science. 7) Epigenetics, though not completely worked out, is not Lamarckian but functions largely the way genetic mutations do. The reason it is not considered to be hugely influential in long-term evolution is because it does not transmit changes to the organism long-term (i.e. the changes are temporary). 8) That organisms “actively contribute to shaping the evolution of their own species” as you say, sounds like the experimentally disproved idea from the 1940s that animals specifically evolve to adapt to changed environments. The experiments showed that the adaptations (i.e., mutations) occur independently of the environmental changes. 9) You often talk as if “evolutionary theory” and “Darwinism” and “natural selection” are all identical ideas. They are quite different as can be seen by the fact that “evolution” of species was an idea that long predates Darwin, that “natural selection” is a part of his theory, and that “Darwinism” often refers to a modern synthesis that includes “natural selection” but also genetic drift, gene flow, and other processes. Anyway, these are some of the problems with your essay. I would be happy to continue this conversation with a more indepth analysis including more specific bibliographical references. Blessings!
@leyfmax, my reply is above. I accidentally got your handle wrong.
First I would like to thank you for taking the time to formulate your response and express my appreciation for the considered objections that you have raised.
I will respond to each of the points that I could discern but first I would like to say that I don’t think that the disagreement we have is going to be resolved on the level at which it is framed. to illustrate what I mean, perhaps you will permit me to quote this somewhat lengthy exposition by Quine, which touches on an issue that is similar to the famous “incommensurability of paradigms” to which Kuhn drew attention and what Goethe also intuited and designated under the rubric of Vorstellungsart. Quine observes:
“The totality of our so-called knowledge or beliefs, from the most casual matters of geography and history to the profoundest laws of atomic physics or even of pure mathematics and logic, is a man-made fabric which impinges on experience only along the edges. Or, to change the figure, total science is like a field of force whose boundary conditions are experience… But the total field is so undetermined by its boundary conditions, experience, that there is much latitude of choice as to what statements to re-evaluate in the light of any single contrary experience. No particular experiences are linked with any particular statements in the interior of the field, except indirectly through considerations of equilibrium affecting the field as a whole…
A recalcitrant experience can, I have already urged, be accommodated by any of various alternative re-evaluations in various alternative quarters of the total system; but, in the cases which we are now imagining, our natural tendency to disturb the total system as little as possible would lead us to focus our revisions upon these specific statements concerning brick houses or centaurs. These statements are felt, therefore, to have a sharper empirical reference than highly theoretical statements of physics or logic or ontology. The latter statements may be thought of as relatively centrally located within the total network, meaning merely that little preferential connection with any particular sense data obtrudes itself.
As an empiricist I continue to think of the conceptual scheme of science as a tool, ultimately, for predicting future experience in the light of past experience. Physical objects are conceptually imported ,into the situation as convenient intermediaries – not by definition in terms of experience, but simply as irreducible posits comparable, epistemologically, to the gods of Homer. Let me interject that for my part I do, qua lay physicist, believe in physical objects and not in Homer’s gods; and I consider it a scientific error to believe otherwise. But in point of epistemological footing the physical objects and the gods differ only in degree and not in kind. Both sorts of entities enter our conception only as cultural posits. The myth of physical objects is epistemologically superior to most in that it has proved more efficacious than other myths as a device for working a manageable structure into the flux of experience.”
In other words, to grasp the real basis of disagreement over these issues, it is often necessary to effect a sort of foreground-background shift. So while I appreciate your offer to continue this conversation, it doesn’t strike me as a particularly fruitful prospect in itself. having read your substantive objections, I found each of them intelligible and cogent, but by no means dispositive, and I can’t see that anything you pointed out constitutes a fatal error in my argument or understanding. That being said, I want to again express my appreciation for the effort you put into your rebuttal and presumably readers can read our respective positions and judge for themselves. Also, I would like to discover some of your work so perhaps you could reach out by social media or find me on Twitter, where my handle is as it is listed on this site.
it’s really not possible to debate the merits of Darwinism without also confronting the entire paradigm and research program of Science as it has developed, more or less adventitiously in the sense that it is entirely conceivable that it could have developed along very different lines, through its key figureheads. the clarion for this program can be identified in Bacon’s rejection of formal and final causality out of the fourfold Aristotelian nexus. note that the majority of these figureheads also held heterodox beliefs in respect to this particular program, but only their orthodox ones (again, vis-à-vis this program) were assimilated into the historical stream (Newton is a well-known example of this). this reveals that the paradigm in question exerts a sort of “selection” process on proposed scientific theories and only allows for the propagation of those that confirm those of its program, which, as indicated, can be traced back to the Baconian axiom and consists in something like the tacit question of “how can we explain natural phenomena without recourse to intelligence, teleology, consciousness, God, or innumerable other phenomena that do not lend themselves to this kind of explanation?”
You wrote: “evolution does make predictions in much the same way as any other theory, though, like quantum theory, it cannot give exact predictions for a particular future event, since there are stochastic processes involved (i.e. mathematically random events; we can argue the ontology, but it seems that you have already admitted that phenomenologically speaking events can be random). It seems to me that throughout the article from start to finish you do not have a grasp on either the history of evolutionary theory nor the nature of the theory itself. It would require a very long article to counter each point. I will, however, note some specific misunderstandings and would be happy to send you a lengthier critique, since I would love to have constructive criticism on my own understanding of the issues. The first is your suggestion that “natural selection” is a chance process. Mutations are stochastic (they follow probability distributions but are specifically unpredictable), natural selection is a law-like process in which some creatures die because they cannot compete with other creatures that better utilize resources, escape predators, or other factors. So, for example, if on a particular island the fruit on certain trees become harder because of certain climactic or genetic factors, the birds of a certain species on that island that through genetics have the ability to crack and eat that fruit better will get more food and survive better than the birds that cannot do as well. The populations of the former birds will increase at the expense of the latter birds. This is natural selection in a nutshell. How that is teleological is hard to tell, since neither the birds nor the environment are being changed by any intelligent cause that can be ascertained statistically.”
I see your point here and your argument, but I don’t find it convincing and to me has the “motte-and-bailey” feeling since it seems that the only defensible position is to say that natural selection means that (a) “a thing will persist unless it is destroyed, at which case it will cease to persist.” but that is basically tautological and so the predictions it makes are of little interest. (b) but if it is saying more than that, scientifically it would have to make much more specific predictions. in the hypothetical scenario that you indicated, perhaps the bird population would evolve in the direction you proposed, but perhaps it would evolve to rely on beetles as an alternative foodsource, for which, as Haldane observed, “the Creator seems to have an inordinate fondness,” or perhaps it would be outcompeted by some other species, especially given that the climatic or genetic factors you suggested will be liable to influence the entire ecological balance of the island and not only this isolated species. in short, it’s impossible to make a specific prediction in any concrete case while to make a general one is like saying “when the rooster crows atop the manure pile, either it will snow or it won’t.” if the theory makes specific predictions, I would like to see them; if it doesn’t, why believe the theory? more generally, I would like to know what would constitute evidence for falsification of the theory (to appeal to the famous Popperian criterion of science). Darwin himself identified “gaps in the fossil records” as one of these criteria. everyone knows the fossil record is riddled with gaps, but no advocate of the theory takes this as grounds for dismissal of it. Instead, the gaps can be “accommodated by any of various alternative re-evaluations in various alternative quarters of the total system,” as Quine observed. this fact doesn’t disprove the theory per se but it should urge us to reconsider the categorical manner by which the theory is promulgated today.
Re teleology: it seems manifestly present in the very fabric of the whole question, and as a postulate for the theory of natural selection itself since if the birds didn’t actively and intelligently care about food to begin with, no change in the environment would be capable of producing the slightest influence on the species’ genome. that teleology is overlooked where it is manifestly present and then presumed to be absent when the complexity of a system increases beyond the scale of intelligibility does not strike me as a convincing reason to assent to the axiom that it doesn’t exist, or shown to be the stuff of pseudoscience. I touched on this issue above under the rubric of “the research program” or “paradigm” of Science.
You wrote: “Here are a few other misunderstandings: 1) you say that sexual selection is opposed to natural selection, but it is actually a part of the theory (though often discussed separately) and in “The Origin” Darwin addresses it.”
Yes but my criticism is not with Darwin but with the reductionistic paradigm of life and evolution that his work has been marshalled in justification of. Sexual selection is most definitely opposed to the notion that the evolution of species can be explained without appeal to teleology in nature because females of a species are part of nature.
You wrote: “2) The “Modern Synthesis” was not just an update of Darwin’s theory with Mendelian genetics, it was Mendelian genetics that allowed evolutionists to take Darwin’s theory of natural selection seriously! His theory was out of favor until that point (early 20th century).”
I don’t necessarily think you’re wrong about this but, as I’m sure you will concede, history is very complex and there is, as a rule, more than one correct narration of events. you emphasized one here and I emphasized another. what caused the Reformation: the invention of the printing press or Martin Luther’s 95 theses, or the selling of indulgences and other iniquities by the Catholic clergy?
You wrote “3) “Selection” is misunderstood as teleological, because it misunderstands that evolutionary biologists use the word “selection” as a descriptive term (not a personification) simply refering to the process by which some living beings survive and others die in a particular enviroment, preserving a certain population of those living beings. It does not “identify and preserve genetic fitness through the chaos of generations” but is merely a description of the death of those who are less fit than others or the survival of those that are more fit.”
It’s fair enough that you objected to my slightly poetic and perhaps hyperbolic phrase. but as to the point at issue, which is the same as you and I touched on above: attempting to remove teleology creates tautology while preserving it intact compels a radical reimagination of the paradigm.
You wrote “4) Darwin did not propose a “blind” process that replaced artificial selection, but in fact had to spend a chapter of his book convincing his audience that artificial selection actually took place – that creatures were malleable.”
This point I don’t really understand. Darwin presented the example of artificial selection, which is, intentional or teleological selection, to argue by analogy for the possibility of unintentional or natural selection. Is there something objectionable in this statement?
You wrote “5) You say that “natural selection” falls apart because the environment must include other organisms that are constantly changing. Darwin addressed this in “The Origin” as part of his theory. In fact he emphasized that the other organisms can be considered a larger influence on the course of evolution and natural selection than the nonliving world.”
alright, but then the very terms in which the proposed theory are framed are spurious and deceptively reified: there is no organism-environment dichotomy except as an abstraction.
You wrote “6) Scientists use the concept of “chance” in a very particular way, and it is not to say a cause is unknown, but that is statistically predictable; most Christians agree that quantum physics, which also works this way, is a science.”
presumably you think modern evolutionary theory is good and true, and presumably the fact that most scientists did not believe it before the end of the 19th and beginning of the 20th century did not have a bearing on this so I don’t think what most Christians think is really at issue. that something is statistically predictable, if it is not also explicable by real causes, implies, by omission, that the cause is unknown. statistics is a way of papering over ignorance of causes; hence, epistemically, “chance.” I’m not saying there is no place for statistics but there is a difference between statistics and knowledge, for lack of a better word, and it should be kept in mind.
You wrote “7) Epigenetics, though not completely worked out, is not Lamarckian but functions largely the way genetic mutations do. The reason it is not considered to be hugely influential in long-term evolution is because it does not transmit changes to the organism long-term (i.e. the changes are temporary).”
I see your view about this but I don’t find it convincing because behavior influences the epigenome which codes for gene expression which informs protein synthesis which informs tissue growth and phenotype which influences genetic fitness which in turn confers these configurations onto successive generations. the author in the linked article argues for a reconception of Darwinism along these lines so while I understand your position on this, you should be able to understand mine: https://aeon.co/essays/on-epigenetics-we-need-both-darwin-s-and-lamarck-s-theories. Perhaps time and further research will settle this, but only if scientists are willing to imagine alternatives to the reigning view. Otherwise, any potential counter-evidence will merely be “accommodated.”
You wrote “8) That organisms “actively contribute to shaping the evolution of their own species” as you say, sounds like the experimentally disproved idea from the 1940s that animals specifically evolve to adapt to changed environments. The experiments showed that the adaptations (i.e., mutations) occur independently of the environmental changes.”
I had the most trouble grasping this particular objection, perhaps because of the lack of specificity as to which experiments you have in mind but the statement you quoted is only an extension of points that, to my mind, have already been established.
You wrote “9) You often talk as if “evolutionary theory” and “Darwinism” and “natural selection” are all identical ideas. They are quite different as can be seen by the fact that “evolution” of species was an idea that long predates Darwin, that “natural selection” is a part of his theory, and that “Darwinism” often refers to a modern synthesis that includes “natural selection” but also genetic drift, gene flow, and other processes.”
this is a fair objection and I myself indicated that evolutionary theory did not originate with Darwin. but at the same time, it seems that for practical purposes, outside of the discussions of intellectual historians anyway, the terms “evolutionary theory” and “Darwinism” are used interchangeably. technically, I am guilty as charged of conflating “natural selection” with “Darwinism” so thank you for pointing out the error of my ways. that being said, I don’t think it is especially misleading since “Darwinism” is its own kind of metonymy to refer to a comprehensive theory just like “natural selection” is.
All blessings to you and thank you again for the time and effort you put into this.