Human Origins: The Darwinian left discovers “group selection”
| November 21, 2007 | Posted by O'Leary under The Design of Life |
At the Huffington Post, Dan Agin has announced that Dawkins’s famous selfish gene is laid off. Terminated. Pink slipped. Out of a job:
For nearly half a century, the evolution of human behavior has been presented to the public framed by the ideas of Edward O. Wilson, Richard Dawkins, and a cohort of sociobiologists, evolutionary psychologists, and media gene-mongers. The scientific basis for the frame is the idea that the focus of Darwinian natural selection is the selfish gene, selection always acting within groups and never between groups — individual selection rather than group selection, the unit of selection the gene. From this has followed the selfish-gene evolutionary analysis of various human behaviors, especially the analysis of altruism.
Well, it seems that the father of sociobiology, E.O. Wilson has changed his mind: in the current issue of New Scientist (November 3, 2007), evolutionary biologists David Sloan Wilson and Edward O. Wilson effectively end the hegemony of the selfish gene idea: they review the field and declare in a voice loud and clear that group selection was mistakenly cast aside during previous decades, that the evidence for group selection is too strong to be ignored, and that the current ideas about how evolution works need to be revised.
The scientific revision, well-known to professional biologists, has actually been in the works for more than a decade (see, Wilson, D.S. & Sober, E. (1994). Reintroducing group selection to the human behavioral sciences. Behavioral and Brain Sciences 17(4): 585-654) but with this new article in the popular media the public revision begins.
Groups with more altruists (people who care about you) do better than groups with fewer altruists?
Okay, if that’s a big surprise, we need to change our idea of what constitutes a “big surprise.” But what big revision is now foreseen? Didn’t everyone except the village atheist know this already?
Akin goes on to enthuse,
Humans are pack animals. We live and die in herds. The group provides the individual with the means of physical and psychological survival. We need the group as much as the group needs us. It’s a fair trade that’s been evolving for millions of years.
Herds. Pack animals. Hmmmm … not so good. Not like – for example – the Christian concept of the Body of Christ. A laggard in the herd is definitely expendable. But even if you are only a toe in the Body of Christ, if you get stomped on …
More pressing: Just what rights does this alleged new insight on the part of the wizards of Darwinism give “the group”, one wonders. Especially in view of the fact that
There will be die-hards. There are people who don’t like the idea that society is as important as genes in determining behavior. They don’t like the idea that nature can select societies as well as individuals.
Now, I would like to know how “nature” “selects” “societies.”
If “nature” is Darwin’s natural selection, then the case is clear. Darwin’s natural selection can only select between randomly mutated genes in individuals (natural selection acting on random mutation). That means individuals, not groups.
Dawkins was right about that, even if he was wrong about almost everything else. So how exactly IS society important?
Well, it is, but … mainly by subverting any type of evolution that is driven by some program other than the human society. Historically, people have worked to subvert nature. We segregate ourselves from nature. Entire industries fret about that fact and market “natural” products.
We also act against nature. Think of all the people who lavish attention on disabled friends and relatives instead of eating them or throwing them off a cliff.
It has been so from the beginning. And it never contributed anything to Darwinian fitness OR group selection. Many groups would be materially better off, no doubt, if they had got rid of their elderly dependents, and yet they did not.
There isn’t really any “group selection”. There are societies that people are willing to belong to and societies that they are not willing to belong to. That has been the story of human history from the beginning. The only selection force is the decisions made by human beings.
But – oops – we are not supposed to believe that, are we? It might imply that there is a spiritual brain.
I can’t help wondering how much of the “group selection” fad is driven by the recent meltdown of the career of anti-theist James Watson (of double helix fame), for uttering politically incorrect thoughts.
For more on the Darwinian left, go here and here.
22 Responses to Human Origins: The Darwinian left discovers “group selection”
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At some point we have to make a distinction between “refining” the theory of evolution, and admitting that much of the theory is absolute bullshit.
Seriously, does anyone actually know anything?
The theory of evolution is false. The true of origins is an Intelligent Design/Genetic Entropy .
The basic rule for the can be stated something like this:
The ID portion of the holds that a parent species is “designed” with front loaded (CSI) information for all sub-speciation events to occur away from it.
The Genetic Entropy portion of the holds that:
All favorable sub-speciation events to different environments will always come at a cost of information from parent species. (i.e. Less genetic diversity of sub-species than for parent species even though sub-species is better adapted for a particular environment)
The Genetic Entropy portion of the also holds that meaningful information can never increase above the level that was present in the parent species.
A friend challenged me on the Genetic Entropy portion of the ,for it is scientifically known that (non-living) HIV viruses have verifiably gained a trivial amount of complexity in 10^20 tries of RV/NS.
Yet the Genetic Entropy portion of the turns out to be robust even to the level of (non-living) viruses because of this fact:
Is the overall principle of entropy (The Second Law) wrong when rocks pile up at a bottom of a mountain?
No, of course not, The entropy was payed for by the mountain when rocks disintegrated from the mountain side.
Thus, in defense of Genetic Entropy, I maintain that the integrated complexity of life, when viewed as a whole symbiotic entity, gives Genetic Entropy its foundational validity.
Thus I maintain that Genetic Entropy is obeyed for the “trivial” gain in complexity (information) of the “non-living” virus (which infected a living host) will always come at a cost of complexity (information) to the “higher living organism” it has infected”.
That is to simply say, more complexity will always be lost from a living organism than is ever gained by the non-living virus.
The is robust and will hold true through rigorous analysis!
Redo:
The theory of evolution is false. The true mo^del of origins is an Intelligent Design/Genetic Entropy mo^del.
The basic rule for the mo^del can be stated something like this:
The ID portion of the mo^del holds that a parent species is “designed” with front loaded (CSI) information for all sub-speciation events to occur away from it.
The Genetic Entropy portion of the mo^del holds that:
All favorable sub-speciation events to different environments will always come at a cost of information from parent species. (i.e. Less genetic diversity of sub-species than for parent species even though sub-species is better adapted for a particular environment)
The Genetic Entropy portion of the mo^del also holds that meaningful information can never increase above the level that was present in the parent species that was designed.
A friend challenged me on the Genetic Entropy portion of the mo^del ,for it is scientifically known that (non-living) HIV viruses have verifiably gained a trivial amount of complexity in 10^20 tries of RV/NS.
Yet the Genetic Entropy portion of the turns out to be robust on further analysis, even to the level of (non-living) viruses because of this fact:
Is the overall principle of entropy (The Second Law) proven wrong when rocks pile up at a bottom of a mountain?
No, of course not, The entropy was payed for by the mountain when the rocks disintegrated from the mountain side.
Thus, in defense of Genetic Entropy, I maintain that the integrated complexity of life, when viewed as a whole symbiotic entity, gives Genetic Entropy its foundational validity.
Thus I maintain that Genetic Entropy is completely obeyed, for the “trivial” gain in complexity (information) of the “non-living” virus (which infected a living host) will always come at a cost of complexity (information) to the “higher living organism” the virus has infected”.
That is to simply say, more complexity will always be lost from a living organism than is ever gained by the non-living viruses that infect the higher organism.
The is robust and will hold true through rigorous analysis!
Redo:
The theory of evolution is false. The true mo^del of origins is an Intelligent Design/Genetic Entropy mo^del.
The basic rule for the mo^del can be stated something like this:
The ID portion of the mo^del holds that a parent species is “designed” with front loaded (CSI) information for all sub-speciation events to occur away from it.
The Genetic Entropy portion of the mo^del holds that:
All favorable sub-speciation events to different environments will always come at a cost of information from parent species. (i.e. Less genetic diversity of sub-species than for parent species even though sub-species is better adapted for a particular environment)
The Genetic Entropy portion of the mo^del also holds that meaningful information can never increase above the level that was present in the parent species that was designed.
A friend challenged me on the Genetic Entropy portion of the mo^del ,for it is scientifically known that (non-living) HIV viruses have verifiably gained a trivial amount of complexity in 10^20 tries of RV/NS.
Yet the Genetic Entropy portion of the turns out to be robust on further analysis, even to the level of (non-living) viruses because of this fact:
Is the overall principle of entropy (The Second Law) proven wrong when rocks pile up at a bottom of a mountain?
No, of course not, The entropy was payed for by the mountain when the rocks disintegrated from the mountain side.
Thus, in defense of Genetic Entropy, I maintain that the integrated complexity of life, when viewed as a whole symbiotic entity, gives Genetic Entropy its foundational validity.
Thus I maintain that Genetic Entropy is completely obeyed, for the “trivial” gain in complexity (information) of the “non-living” virus (which infected a living host) will always come at a cost of complexity (information) to the “higher living organism” the virus has infected”.
That is to simply say, more complexity will always be lost from a living organism than is ever gained by the non-living viruses that infect the higher organism.
The mo^del is robust and will hold true through rigorous analysis!
I think that unfortunately the Intelligent Design movement has been so caught up with Darwinian evolution that it is forgetting other areas of science (hmph!) and culture that need revolutionizing to bring back purpose and traditional values. Neuroscientists are doing away with the spirit and the soul, claiming that all we are is a biological brain with no REAL intelligence. Anyway, if our brains are just the result of MINDLESS randomness, then how can we trust that what we know is true? (That’s a solid disproof of Darwinism if I ever saw one!) Even cosmologists are slowly beginning to realize that the universe MUST be designed (see the Anthropic principle), but scientific progress is being slowed down in this area by the secularism that pervades the science establishment. Darwinian medicine is ignoring alternative therapies that have been designed very intelligently by our ancestors, e.g. homeopathy, aromatherapy, accupuncture, etc. I think “scientists” at pharmaceutical companies just sit around in labs waiting for a cure for cancer to appear randomly in a test tube because of their Darwinian upbringing. If ID were the dominant paradigm, they would save a lot more money because they would know to use design principles for drug development. Even paranormal sciences need to be reworked. For example, UFO theory believes that there are aliens out there when there is no evidence for it. I don’t believe aliens exist. I think UFOs are angels, and you only have to look at holy scriptures to see evidence of that.
bornagain77:
The theory you presented suggests a method to prevent HIV from gaining any further complexity. Suppose we collect a tissue sample from every inhabitant of the planet, deep-freeze the samples and store them in a secure location. Assuming the practical difficulties can be overcome, no genetic information possessed by the whole mankind will be lost, not even a trivial amount. Thus HIV cannot gain any new information in the future.
Is my understanding of Genetic Entropy correct?
…which is a creationist argument, not an ID argument. It may be true, but it’s not ID.
Happy Thanksgiving US residents!
To the matter at hand: I don’t really get this post. I’m sorry Ms. O’Leary, but this post shows no understanding of the long history of the critique of Wilson’s ideas from the left. Google “Wilson you’re all wet” to see some of the history. There has also been a long history within the scientific literature of such critiques. From that perspective, the idea that Wilson or Dawkins represents “the Darwinian left” is nonsense.
getawitness,
I think you should make your comment on the Huffington Post and not to Denyse. A left wing blog puts this post up and acts like this is the second coming and it is nonsense. Go there to make your points.
Group selection is nonsense. All selection is individual. What is missing is that a group is part of the environment that each individual finds himself in and this group environment will affect his differential reproduction as an individual.
Both Wilson and Dawkins spin sophisticated dribble. Take your pick which one you want to attack. They are all fair game and easy marks. The amazing thing is that these people are taken seriously. It is an indictment of our society as a whole and this is the real worry about where we have come and where we are headed.
Natural selection has long been an ideal vehicle for all kinds of materialistic ideologies, for one very simple reason: it is a tautology.
In Phillip E. Johnsons’s words, “…the theory predicts that the fittest organisms will produce the most offspring, and … defines the fittest organisms as the ones which produce the most offspring.” (Darwin on Trial, p. 20)
Wikipedia has a couple of great articles on tautology, one of which states:
With natural selection as a given, the only remaining question is: what variables do you care to plug in? Eugenics? Social Darwinism? Communism? A selfish gene? Altruistic group selection? It makes absolutely no difference, because whatever variable you decide to plug in, by definition, has to be true.
Jerry said: “Group selection is nonsense. All selection is individual.”
True, but a group’s cooperation can lead to a different (positive or negative!) level of reproductive success by a given individual. Thus the individual’s breeding success (or lack thereof) is the result of the group’s selection of which individual’s breeding success is important to the group.
Obviously, group selection is made up of it members’ (individuals’) collective selection. But “group selection” does exist, and is not nonsense.
Here we go again. Natural selection is not a tautology and Johnson’s comments should be trashed for what they are, nonsense.
Natural selection is a process that leads to differential increases of some alleles in a population. This happens every day and is not in dispute. If someone wants to describe the members of the population with those alleles as fitter, then fine. But the definition is after the fact and has nothing to do with natural selection or why their percentage increased. Johnson knows this and should be criticized for making the statement. By making the statement it is an indictment of Johnson’s understanding of the process.
The problem with natural selection is not that this process cannot do something but that the process produces very little of consequence in terms of evolution because of the lack of novel alleles in the populations that favor differential reproduction.
The problem with neo Darwinism is not natural selection but the appearance of novelty in populations.
Jerry,
Do you believe Carl Popper also did not understand the theory when he said:
“Adaptation of fitness is defined by modern evolutionists as survival value and can be measured by actual success in survival: there is hardly any possibility of testing a theory as feeble as this.” Karl Popper, Unended Quest, an Intellectual Autobiography (London: Routledge, 1992 edition), 199
or this:
“The fact that the theory of natural selection is difficult to test has led some people, anti- Darwinists and even some great Darwinists, to claim that is a tautology. A tautology like “All tables are tables” is not, of course, testable; nor has it any explanatory power. It is therefore most surprising to hear that some of the greatest contemporary Darwinists themselves formulate the theory in such a way that it amounts to the tautology that those organisms that leave most offspring leave most offspring. And C. H. Waddington even says somewhere (and he defends this view in other places) that “Natural selection…turns out…to be a tautology”. However, he attributes at the same place to the theory an “enormous power…of explanation”. Since the explanatory power of a tautology is obviously zero, something must be wrong here.” Karl Popper “Natural Selection and the Emergence of Mind,” Dialectica, Vol. 32, Nos. 3-4, 1978, p339-355, 344.
I know, Popper was not a biologist. How about Lewontin:
“The concept of relative adaptation removes the apparent tautology in the theory of natural selection. Without it the theory of natural selection states that fitter individuals have more offspring and then defines the fitter as being those that leave more offspring; since some individuals will always have more offspring than others by sheer chance, nothing is explained. . . . Unfortunately the concept of relative adaptation also requires the ceteris paribus assumption, so that in practice it is not easy to predict which of two forms will leave more offspring.”
Richard C. Lewontin, “Adaptation,” Scientific American 239 (September 1978): 166-67, 157-69.
But, as Popper explained in the first quote, relative adaptation does not in fact remove the tautology problem.
No one doubts that natural selection does in fact have some explanatory power at the microevolution level. Indeed, it has been observed. Nevertheless, as formulated by most Darwinists on a grand scale, the theory collapses into a tautology.
BarryA,
Natural Selection does not collapse into a tautology. It collapses because it has nothing of consequence to work on.
Allen MacNeill actually tries to break natural selection into two different “neat” categories to fit the evidence that is consistently found in the fossil record (very sudden appearance, then rapid diversity, then slow decline in diversity over long periods of time.)
His Quote :
“However, once an evolving population reaches a state in which the mean phenotypic type has the highest relative fitness, then stabilizing selection replaces directional selection and the population stops changing significantly. This stasis then persists as long as the ecological niche of the stable population doesn’t change significantly.”
Thus, his two different versions of natural selection become unfalsifiable. For they can explain both rapid diversification of a fossil type and then can explain lack of diversity of fossil type thereafter. He can explain anything he wants in the fossil record whenever he wants his theory to fit the evidence. i.e. his “new” theory has greater weight than the evidence has to falsify it.
Whereas the ID/Genetic Entropy fits the evidence also and, unlike the evolutionary hypothesis of Macneil’s, is rigid enough to be falsifiable.
To falsify ID/Genetic Entropy in the fossil record, just show a sudden sharp increase in diversity for an order or species after it has achieved maximum diversity in the fossil record. Once genetic entropy is in full swing for an order this sharp increase should never, ever occur since ID/Genetic Entropy holds that no new information can be created by natural processes since the “front loaded” information was introduced at the level of “parent” species or order.
BarryA – yes, Popper was wrong. Here’s his mistake:
Fitness isn’t (or rather shouldn’t) be measured by actual success (or actually, lifetime reproductive success, LRS), it should be the mathematical expectation of LRS in the environment.
For a fuller treatment of the argument, see Brandon (1978) Stud. Hist. Phil. Sci. 9: 181-206. (which I have as chapter 1 of this book).
Bob
H’mm:
Bob, isn’t mathematical expectation in effect the sum of probabilities times specific outcomes across the set of possible outcomes?
And, doesn’t that reduce to saying “on average,” the more fit population in a given time and space will survive and reproduce more often, thus, “fittest” is those who survive and reproduce more successfully?
So far as I can see, that still ends up back at the point that on a population basis the more fit are the ones who are more successful at surviving and reproducing.
In short, NS in the formulation RV + NS, from the view of dynamics involved, is a FILTER, not an innovator: at best it explains the survival [on average] — not the arrival — of the fittest. From the view of the logic, such an expectation formulation by and large [so far as it stands] IMHCO is in imminent danger of simply restating a tautology.
This is very different from any notion of macro-evolutionary progress that implies spontaneous [chance + necessity only] information generation towards major body plan level innovation that is then rewarded by out-competing or opening up new zones of life habitation.
In any case, it is worth noting that Johnson is far more nuanced and informed than you and others often suggest or infer, in his DOT.
For instance, here is DOT, 1991, pp. 20 ff and p 160; on NS as tautology and the revisions to it that seek to avoid falling into it but too often revert unnoticed:
I think that puts a very different colour on the matter at stake, and that we should now embark on a different tack in the discussion.
GEM of TKI
bornagain77:
I’m confused. You wrote:
To falsify ID/Genetic Entropy in the fossil record, just show a sudden sharp increase in diversity for an order or species after it has achieved maximum diversity in the fossil record.
If you had an extensive fossil record of wolves and dogs but no DNA, wouldn’t that appear to falsify ID/GE by your criterion? How can you tell the difference?
BarryA and kairosfocus:
In light of Ms. O’Leary’s post about the Darwinistically-based rationizations from the political left (group selection) versus those from the political right (selfish gene):
Something like a tautology must be in operation when — with equal facility and celerity — communists and fascists, racists and humanitarians, cold-hearted tax-the-poor free-market Republicans and gun-grabbin’ tax-and-spend big-government Democrats can all appeal to the same … what is it? … a theory? HA!
It almost sounds like you’re saying it shouldn’t be based upon reality but a mathematical model where Darwinism is made to work…
Joking aside, here is my earlier take on this subject along with the squirrels in another thread:
So…how many squirrels have to fall to their deaths for such a change to become fixated in the population? Do we have any data at all on deaths caused by falls or is it all speculation? The automatic tendon locking mechanisms of such creatures should keep most of the corpses of natural deaths up in the trees I would imagine. What environment would provide this selective pressure? In the other thread Hu claims that “Ordinary squirrels have been observed to fall from great heights with little or no injury.” So are we now forced to hypothesize a limited set of environments which may include trees that would regularly cause death by falling?
The reason I ask all this is because evolutionary biology claims to have all this predictive power, so answering these questions should be easy. If this particular hypothesis (death by falling providing the environmental pressure) does not match reality what scenario is plausible? After all, there needs to some sort of plausible scenario since these traits are shared in divergent species and are supposed to be the result of convergent evolution.
HOW TO MAKE A FLYING SQUIRREL: GLAUCOMYS
ANATOMY IN PHYLOGENETIC PERSPECTIVE
This recent article (2007) makes the suggestion that since leaping distance scales with size that a smaller species would benefit more from gliding. So perhaps the selective pressure would be a smaller species competing with a larger species? They also briefly mention that evolving from a ground-based ancestor would be unlikely, presumably because of the low positive selective pressure for gliding.
Well, enough about NS. What mechanism for variation would provide squirrels gradually growing bushier tails and “pouchier” skin (as Dawkins quaintly simplified the differences)? Or would it be a mechanism that provides rapid variation? Unfortunately, this part of the problem apparently has not been considered that much yet according to that recent article, although “[a]s genetic analyses become less expensive and we approach the era of $1,000 genomes (Service 2006), it may become possible to document the molecular basis for the adaptations of flying squirrels and hence for the evolutionary novelty of gliding flight.” They do speculate:
BTW, this type of variation “might” be front-loaded but in general I don’t see an issue with unguided Darwinian mechanisms being capable of making these particular changes considering their relative simplicity and apparent modularity. I just think it disconcerting that the focus of that recent article–which should represent the latest findings on this subject–seemed to be on making comparisons between samples. Darwinian mechanisms as the source of evolution were generally assumed to function, without any evidence of this being the case. The problems related to natural selection were never discussed in detail. This is ironic since the article is entitled “HOW To Make a Flying Squirrel”.
Hu,
I’m referring to deep time fossil records:
http://www.sciencedaily.com/re.....142013.htm
of special note:
Extinct for 250 million years, trilobites once were the most common creatures in the world’s oceans.
Webster has hunted trilobites from the northwest highlands of Scotland to the deserts of the American Southwest. He specializes in the olenellids, the oldest, most primitive trilobite group ever to evolve. The olenellids also show a great deal of variation within species.
“That led me into thinking there’s something weird about these very primitive Cambrian trilobites that you don’t see in other ones,” he said.
The only way to verify his hunch was to conduct an analysis that combined the data compiled in previously published reports. “It’s too much for one person to look at a thousand trilobite species,” Webster said.
So for his Science study, Webster combed through 68 previously published studies of trilobites, searching for descriptions of evolving characteristics that could be incorporated into his analysis. After eliminating studies that were inappropriate for inclusion, 49 still remained.
He focused on actively evolving characteristics. The trilobite head alone, for example, displays many such characteristics. These include differences in ornamentation, number and placement of spines, and the shape of head segments. His findings: Overall, approximately 35 percent of the 982 trilobite species exhibited some variation in some aspect of their appearance that was evolving. But more than 70 percent of early and middle Cambrian species exhibited variation, while only 13 percent of later trilobite species did so.
“There’s hardly any variation in the post-Cambrian,” he said. “Even the presence or absence or the kind of ornamentation on the head shield varies within these Cambrian trilobites and doesn’t vary in the post-Cambrian trilobites.”
I looked at Webster’s paper, and the evidence fits the ID/Genetic Entropy to a tee!
Not good news for evolution Hu! Not good news at all for evolution!
I think two different concepts have been conflated in the discussion about the ToE, by its proponents as well as its opponents, and that seems to explain at least some of the confusion. Both of them are characteristics of an individual.
The first one, which I’d like to call potential fitness, is the expected value of the lifetime reproductive success (LRS) in the given environment, just as Bob said. It depends on the genotype of the individual, but not on any chance events during its lifetime. It’s a theoretical construct, impossible to measure directly, but one can study it statistically.
The second one, actualized fitness, is just a synonym for LRS. That’s something directly observable, and it may be what the cited authors had in mind. It does lead to a tautology.
The two concepts are NOT the same. For instance, consider peppered moths in an environment where trees are predominantly dark. Ignore, for simplicity, any other factors contributing to potential fitness than colour. Then every dark individual moth has a high potential fitness, but a non-negligible portion of them are unlucky and end up being eaten anyway. Conversely, every light-coloured moth has a low potential fitness, but many of them avoid predating birds by luck. So, the two concepts are different even on the population level.
Regardless of the concept of fitness chosen, there is one necessary empirical condition for evolution: fitness is hereditary to some extent. (In the case of potential fitness, it’s almost tautological, but not quite.) However, sufficient conditions for long-term improvement to be likely are quite complicated.