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Adapting Minds, Evolutionary Psychology as Maladapted Psychology, and Getting Darwin Wrong—Books Against Evolutionary Psychology
Years ago I wanted to be an Evolutionary Psychologist. After I discovered the work of Lynn, Rushton, Jensen, Kanazawa et al, I was fascinated by the subject of Evolutionary Psychology (EP). Thankfully, I did not go down that route (I went into health sciences). I was enthralled by the work of those that claimed that our psychology reflects adaptations to the Pleistocene EEA (environment of evolutionary adaptedness; or OEE, original evolutionary environment). However, little did I know, these types of hypotheses were just-so stories—ad hoc explanations. They are ad hoc since they are made “for this” reason—i.e., noticing the existence of trait T.
Three books shaped my views on EP: Adapting Minds: Evolutionary Psychology and the Persistent Quest for Human Nature (Buller, 2006), Evolutionary Psychology as Maladapted Psychology (Richardson, 2007), and Getting Darwin Wrong: Why Evolutionary Psychology Won’t Work (Wallace, 2010). These three books are solid. Each one is different, but they all have the same theme: They are against the Santa Barbara School of EP, started by Tooby, Cosmides, and Barkow.
This is one of my favorite books by the philosopher of science David Buller. In the book, Buller distinguishes between “evolutionary psychology” and “Evolutionary Psychology”, the latter being the school of thought pushed by Pinker, Tooby and Cosmides, and Buss. On pages 3-4, Buller (2006) writes:
Initially, I was completely captivated by evolutionary psychology, and I was certain that it was providing a deep and accurate understanding of human mentality and behavior. But after six months’ research, it was unclear to me how everything that went by the name “evolutionary psychology” fit together, and I began having serious doubts about many of the confident claims made by evolutionary psychologists (such as Mooris’s claim that “research has proved” that the majority of sperm in an ejaculate function as sperm warriors). A year’s research later, it was clear to me that there were distinctly different lines of research being conducted under the “evolutionary psychology” label, and I became convinced that the line of research had garnered the most attention, both within academia and throughout the popular media, was wrong in almost every detail. This book emerged as my effort to sort the promising from the wrongheaded lines of research. Accordingly, I originally intended to write a book about the “strong” and the “weak” evolutionary psychology. As the project evolved, however, I found that there was too much to be said about the problems with the “weak” evolutionary psychology, and the project consequently became a critique of evolutionary psychology.
But at many junctures, I felt that I didn’t want to go public with a critique of evolutionary psychology. For, as my research progressed, I became disheartened over the scarcity of reasoned intellectual exchange regarding evolutionary psychology. I found that published criticism of evolutionary psychology typically contained more vitriol than serious analysis of the claims made by evolutionary psychologists, and I didn’t want to be associated with that.
I can see how he was captivated by EP. Initially, I was too, since I believed that it actually had something to say about the evolution of our psychology.
Buller then makes a solid point on page 6:
Accordingly, the rhetoric sets up the following dichotomy: Either you accept biology, in which case you must accept the claim of evolutionary psychologists, or you don’t. Critics have thus been portrayed as necessarily committed to scientifically empty theories from the social sciences, to some form of postmodernist relativism, or to creationism [which is ironic, since EP and creatonism are nothing but just-so stories]. No one who truly accepts evolution, the rhetoric goes, can seriosuly question any of the specific claims of evolutionary psychology.
Each chapter of the book focuses on specific programmes that EPists push: Chapter 1 is about Evolution; Chapter 2 is about Mind; Chapter 3 is about Adaptation; Chapter 4 is about Modularity; Chapter 5 is about Mating; Chapter 6 is about Marriage; Chapter 7 is about Parenthood; and Chapter 8 is about “Human Nature.”
I’m just now reading through the book again, and it’s damn good. It gives a nice critical eye to the claims made by Buss, Pinker, Tooby and Cosmides et al.. Of course, there are critics of EP who decry the claim that we are evolved animals, so that critique isn’t without (some) merit. However, EPists make similarly idiotic claims:
All too often I found evolutionary psychologists dismissing their critics as “antiscientific,” “politically correct postmodernists,” or closeted creationists. Any skepticism about the claims of evolutionary psychology was typically portrayed as a product of dogmatic indoctrination in the social sciences, and the attendant belief that all of human psychology is the product of “socialization,” or else as evidence of a commitment to the “superstitious” belief that humans somehow managed to “transcend” the evolutionary process. Indeed, many critics have been dismissed as simply not wanting to accept the implications of the fact that humans evolved just like beasts in the field. (Buller, 2006: 5)
These types of claims are, though, ridiculous. Critiquing an abortive research programme does not make one “antiscientific” in any way.
Buller’s book is solid and really attacks the EP orthodoxy along with popular accounts of EP. I highly recommend it to anyone who wants to read a well-reasoned critique of all of the popular concepts of EP, which EPists push as “the truth.”
Getting Darwin Wrong
Getting Darwin Wrong is written by psychologist Brendan Wallace. He explicitly states that the book is not about the nature-nurture debate; it is not about whether we should use Darwinian thinking to help understand the human mind; nor is it about other recent attempts—such as sociobiology—to apply Darwinian thinking to human psychology. Though, what the book is about, of course, is EP. It is, specifically, like Buller’s and Richardson’s books, about the books written by Pinker, Tooby and Cosmides et al..
So: why another book discussing EP? To begin with, it might well be thought wise to write a book after the initial storm [of controversy] has died down. Far too much of the initial discussion created mich heat but threw little light on the basic claims of EP, but led instead to a situation where various terms of abuse (‘relativist’, ‘determinist’, ‘reductionist’) were thrown about, without much thought being given to defining these terms, or deciding whether or not EP (or its opponents) were guilty of the myriad intellectual ‘sins’ of which they were accused. Moreover, there was a (to my mind) reprehensible tendency to inder political tendencies from the various scientific theories proposed. EP has political connotations of course: all scientific theories (including those of theoretical physics) have political implications. But it’s grossly unfair to argue that just because a theory might lead to ‘right wing’ (or ‘left wing’) conclusions that therefore it must be rejected. As an old philosophy lecturer once told us as fresh eyed undergraduates in our first years at University: if something has been proven to be true, you just have to accept it, whether you like its implications or not. ‘It makes me feel bad, therefore it is false’ is not an argument.
I, of course, agree with this. Though, funnily enough, people I have debated EP with have accused me of having political motivations for denying EP just-so stories. What is most funny about those accusations, though, is that if I DID have political motivations regarding EP, I WOULD accept EP just-so stories, as a lot of them line-up with political beliefs that I hold. It seems that people cannot fathom that one can be on the right and reject the storytelling of EPists.
Wallace attacks three views of EP: the “information processing”—“… the idea that human cognition consists mainly (or exlclusively) of the processing of information” (Wallace, 2010: 7), the theory of cognitivism—“… the belief that cognition is the manipulation of symbols by rules or algorithms” (Wallace, 2010: 7), and computationalism, “… the belief that the human brain is (or can be usefully compared to) a digital computer” (Wallace, 2010: 7).
So the argument of this book is (I think) novel and quite simple. It is this. Evolutionary Psychology is NOT (as it is normally taken to be) an unproblematic adaption of Darwinian theory to the science of psychology. Instead, EP is an adaption of a specific ‘school’ of psychology: that of cognitivism (or the ‘information processing view of human cognition’ or ‘computationalism’). Essentially EP is an attempt to reinterpret and restate the basic precepts of cognitivism within a Darwinian framework.
This seems like a controversial argument but actually, a careful reading of the seminal works of Cosmides, Tooby, Pinker and other associated with EP shows that they have always been fairly clear about what EP really is, and what they are trying to do. I will also attempt to show that Cosmides et al. were forced to adopt their cognitivist position because of certain assumptions they began with about what psychology is and should be, and that these assumptions themselves are by no means unproblematic. (Wallace, 2010: 8-9)
In one of the major themes of the book, Wallace attacks the massive modularity hypothesis (MMH) that EPists push. According to EP, the mind is made up of different modules which evolved for specific tasks in our OEE. However, as I have noted before, the arguments erected in favor of this view fail.
Getting Darwin Wrong is the most different of the three books discussed today, and I like it as a solid history into the underpinnings of EP and its assumptions.
Evolutionary Psychology as Maladapted Psychology
The final book I will discuss is Evolutionary Psychology as Maladapted Psychology by the philosopher of science Robert Richardson. It is most similar to Buller’s book, in that it specifically attacks EP theories, whereas Wallace’s book shows the history of EP and how and why the assumptions underpinning them are false. Richardson, like Buller, attacks the just-so stories of Pinker, Tooby and Cosmides, and Buss. He shows, for instance, that so-called “evolved fears” of snakes and spiders are baseless. (Indeed, there is good evidence that these are learned fears.)
Richardson discusses the aims of EP, reverse engineering, adaptation, massive modularity and Tooby and Cosmides’ integrated causal model (ICM) vs their version of what social ‘scientists’ believe—the standard social science model (SSSM). He notes how they have erected a false dichotomy between an untenable view and their own, so that others would accept their own view.
The structure of his book is as follows (Richardson, 2007: 51):
The heart of this book is organized around three different approaches toward empirically evaluating evolutionary explanations. These include what is called “reverse engineering” (chap. 2); another alternative is to infer the effect from the relevant causes, an approach that reflects the dynamic perspective of much of evolutionary biology (chap. 3); finally I will turn to analyses designed to disentangle history from structurem which depends on disentangling historical ancestry (chap. 4). I believe that the later analyses are the most powerful.
One of the strengths of his book is the forcefulness of his analyses of EP claims. For example, his discussion of so-called evolved fears of snakes and spiders is particularly strong:
On this view, at least some human fears (but not all) are given explanations in evolutionary terms. So a fear of snakes or spiders, like our fear of strangers and heights, serves to protect us from dangers. Having observed that snakes and spiders are always scary, and not only to humans, but other primates, Steven Pinker (1997: 386) says “The common thread is obvious. These are the situations that put our evolutionary ancestors in danger. Spiders and snakes are often venomous, especially in Africa…. Fear is the emotion that motivated our ancestors to cope with the dangers they were likely to face” (cf. Nesse 1990). This is a curious view, actually. Spiders offer very little risk to humans, aside from annoyance. Most are not even venomous. There are perhaps eight species of black widow, one of the Sydney funnel web, six cases of brown recluses in North and South America, and one of the red banana spider in Latin America. These do present varying amounts of risk to humans. They are not ancestrally in Africa, our continent of origin. Given that there are over 37,000 known species of spiders, that’s a small percentage. The risk from spiders is exaggerated. The “fact” that they are “always scary” and the explanation of this fact in terms of the threat they posed to our ancestors is nonetheless one piece of lore of evolutionary psychology. Likeways, snakes have a reputation among evolutionary psychologists that is hardly deserved. In Africa, some are truly dangerous, but by no means most. About one quarter of species in Uganda pose a threat to humans, though there is geographic variability. It’s only in Australia—hardly our point of origin—that the majority of snakes are venomous. Any case for an evolved fear of snakes would need to be based on the threat from a minority. In this case too, the threat seems exaggerated. There is a good deal of mythology in the anecdotes we are offered. It is not altogether clear how the mythology gets established, but it is often repeated, with scant evidence. (Richardson, 2007: 28)
It is important to note that, for example in chimps, fear of snakes is learned (socially), since captive chimps show no fear to snakes (Anderson, 2018). See also Ehrlich (2003: 89) who notes that this fear of snakes is not found in New Guinea natives, where one would assume that it would be found if the claims from Pinker hold.
Richardson attacks the false dichotomy pushed by Tooby and Cosmides (1992), writing:
Tooby and Cosmides’ portrayal [of the SSSM] is very effective. It is also a piece of sophistry, offering a false dichotomy between a manifestly untenable view and their own. The alternative is one that sees no differences between individuals and no biological contribution to individual or social development. I think no serious figure embraces that view, since, perhaps, John Watson in the early twentieth century.
Tooby and Cosmides also say that “There is no small irony in the fact that [the] Standard Social Science MOdel’s hostility to adaptationist approaches is often justified through the accusation that adaptationist approaches purportedly attribute important differences between individuals, races and classes to genetic differences. In actuality, adaptationist approaches offer the explanation for why the psychic unity of humankind is genuine and not just an ideological fiction” (1992, 79).
Of course, if one puts for an untenable view with their own, theirs will then be accepted.
Lastly, Richardson (2007: 73) attacks one of Buss’s hypotheses:
We begin by assessing differences between men and women in terms of their sexual attitudes. Let’s suppose, contrary to fact, that we actually have reasonable gauges of these differences. Buss uses the evidence to conclude that there are sexual differences, notes the consistency of this with some evolutionary models, and infers that our ancestors not only actually behaved in a way that reflects the differences in our attitudes, but that there were selective pressures to behave. These differences in attitude are supposed to reflect some deeper underlying differences in mating strategies. The mating strategies are taken in turn to reflect some fundamental biological imperative. This argument is put forth without citing evidence concerning, say, group structure, which would certainly be relevant. It is put forth without so much as information concerning group size. It is put forth without information concerning similarities between ancestral and current group structures, mating structures, or group sizes. It is, of course, put forth without evidence concerning actual mating behavior, or the differences supposed to exist in ancestral groups. From all this, and less, we infer that there is an evolutionary and adaptive explanation of the differences between the sexes. That conclusion, in turn, allows Buss to interpret the evidence in a way that he thinks somehow makes evolutionary sense. If this is the way the argument works, then it is a case of reverse engineering. But it is not a very compelling case of reverse engineering.
EP, since its inception in the early 90s, has been the subject of numerous debates. I, personally, reject EP on the grounds that no EP hypothesis can be independently verified. However, contrary to my views, Richardson, Buller, and Wallace are hopeful in the EP paradigm, though they strongly criticize it. For example, Richardson (2007: 25) writes that he “views evolutionary psychology as more speculation than science” and that “It does not warrant our acceptance“, so “Evolutionary psychology as currently practiced is often speculation disguised as results. We should regard it as such.” I agree with this—speculation is not science. Just-so stories are not science.
In any case, all three of these books, if read with an open mind, will have one become extremely skeptical of EP, and, hopefully, reject the abortive research programme since it cannot do what it purports to.
Steve Stewart-Williams wrote an article for Nautilus yesterday titled Nurture Alone Can’t Explain Male Aggression. He begins the article by describing a bank robber who shoots and kills a bank teller and then takes police on a high-speed chase where he finally gets killed. Then it is revealed that the bank robber had an extensive criminal history. Oh, it was a male. “you weren’t being sexist“, he writes, “you were playing the odds.” Most men aren’t violent, but most violent individuals are men. Stewart-Williams then discusses a recent article published by The New York Times titled It’s Dangerous to Be a Boy, with the headline (emphasis mine) “They smoke more, fight more and are far more likely to die young than girls. But their tendency to violence isn’t innate.” I will discuss the use of the term “innate” further down.
Stewart-Williams then states, going off the headline quoted above, that the statement means that “sex differences in aggression come entirely from the environment: from culture rather than biology, nurture rather than nature.” Nevermind the false dichotomy here, let’s finish up discussing the gist of the article before getting onto what’s wrong with it. He then states that biology matters as well, and that the claim that male violence isn’t “innate” is the “Nurture Only” position, while we know that “Biology matters as well.” This seems to be the strawman that all evolutionary psychologists battle with: Anyone who disagrees with EP claim C is a “blank slatist” (this phrase taken care of by Robert Richardson in Evolutionary Psychology as Maladapted Psychology); but due to the interaction of nature and nurture, genes and environment, you can’t partition them into percentages—as is done with heritability estimates (see Moore and Shenk, 2016).
So these sex differences in aggression are noticed in all cultures. What could explain this? Stewart-Williams then discusses the Eagly and Woods’ (2016) social role theory of sex differences. They agree—of course—that there are sex differences in aggression and crime found throughout all cultures on earth, but the cause of domination is due to the effect of evolved differences in body size—men being bigger, stronger, and faster than women while women are smaller, weaker, and slower than men. So this proposed hypothesis states that the psychological differences found throughout all cultures is due to physical sex differences.
“Why wouldn’t natural selection create psychological sex differences as well as physical ones?“, Stewart-Williams writes. Well the answer to this question is that there are no psychophysical laws so psychological traits/mental abilities can’t be selected. Then there is the fact that natural selection is not an explanatory mechanism since it cannot explain trait fixation because there are no laws of selection for trait fixation (Fodor, 2008; Fodor and Piatteli-Palmarini, 2010).
Stewart-Williams writes “Some argue that, even if culture doesn’t create the aggression sex difference out of nothing, it does still amplify a relatively trivial inborn difference.” This is ridiculous: “culture doesn’t create the sex difference out of nothing”, however, small differences between males and females can be magnified by culture (Eliot, 2009). Note that this is a developmental perspective, and that developmental systems theory (DST) is completely at-ends with Evolutionary Psychology.
Is it just a coincidence that this alleged surge in socialization comes at the same time as the massive surge in circulating testosterone that accompanies puberty in males?
I see he is implying that circulating testosterone levels explain differences in aggression between males and females and that this also explains aggression as well. Though, as I have documented, the claim is false.
Stewart-Williams than writes:
The socialization hypothesis offers no particular reason to expect this. But the decline in violence coincides almost perfectly with the decline in testosterone found in men throughout the adult years, and mirrors the decline found in males of other species. Once again, this is much easier to explain in evolutionary than in sociocultural terms.
How interesting to bring this up. I’m sure most have heard the claim that testosterone levels begin to decrease at around age 25-30 (a decrease in total T of 1-2 percent per year after age 30). Though, note that age-range. What major life events occur during that time for most men? Marriage, children (some bouts of depression). Smoking, too, explains some of it. Shi et al (2013) write:
The annual decline in T (−0.8% per year) is similar to that reported from longitudinal cohort studies in the United States (17), Denmark (36), and Australia (16). The current study strongly suggests that the decline in T is not an inevitable part of aging, which is consistent with a recent cross-sectional study of 325 men 40 years and older self-reporting very good or excellent health (37). Our data show that variability in the change in T is largely explained by smoking behavior and intercurrent changes in health status, particularly obesity, depression, the overall burden of chronic disease, and marital status.
Though, predominantly, the biggest culprit to decreasing testosterone is obesity. Further, smokers have higher levels of testosterone than non-smokers (Wang et al, 2013). This is because smoking cessation causes fat mass to accumulate, and higher fat mass is associated with lower testosterone levels.
In any case, Stewart-Williams continues to talk about the “Nurture Only” (“blank slate”) position. He discusses how human males commit around 95 percent of crime while being 79 percent of homicide victims. He then states that male chimpanzees commit 92 percent of “chimpicides” while male chimps are 72 percent of those who are killed. So if he will use chimps as an example for an “innate” tendency, then I’ll use something on chimps to prove the point that it’s not testosterone that causes aggression, as Stewart-Williams is implying.
In The Trouble with Testosterone, Sapolsky (1997) discusses five chimpanzees. The chimpanzees were then allowed to form a hierarchy, 1-5. Number 3 pushed his weight around on numbers 4 and 5 but was subservient to numbers 1 and 2. Number three was taken and then injected with testosterone. He then began engaging in more aggressive behavior, which would confirm the hypothesis that testosterone causes aggression, right? Wrong. Sapolsky (1997) writes:
So even though small fluctuations in the levels of the hormone don’t seem to matter much, testosterone still causes aggression. But that would be wrong. Check out number 3 more closely. Is he now raining aggression and terror on any and all in the group, frothing in an androgenic glaze of indiscriminate violence. Not at all. He’s still judiciously kowtowing to numbers 1 and 2 but has simply become a total bastard to number 4 and 5. This is critical: testosterone isn’t causing aggression, it’s exaggerating the aggression that’s already there.
Now let’s get to the problem with the term “innate”: It’s an empty term. It’s a term that people use when they don’t want to think about the development of the trait in question. For example, the term “innate” is thought by numerous researchers today to be driven “by” genes. It is assumed that “innate traits” are “non-malleable.” Maybe the assumption is that only genes are needed for the culmination of trait X. Or maybe the assumption is that a trait is “innate” iff it is fully genetically influenced. Though, there is a problem there, too. What does it mean for something to be “genetically influenced”? What a priori justification exists to privilege genes over any other developmental variables? There is none. Noble’s (2012; 2017) argument rears its head whenever the discussion of “genetic traits” comes up: it’s nonsensical to talk about, since, in a multi-level complex biological system, pinpointing one level is useless since they all interact.
However, Bateson and Mameli (2007) dispense with the term “innate”. They write that “Over-used metaphors from engineering such as ‘‘hardwiring’’ and ‘‘pre-programming’’ applied globally to the outcome of development fail to capture the character of the processes and once again invite the mistaken view that they can be contrasted with their opposites. We believe that a thorough investigation of developmental processes has been hindered by indiscriminate use of the labels ‘‘innate’’ and ‘‘acquired.’’”
So the next time you see a marvelous and complex behavior—such as a border collie herding sheep or birds flying south for the winter—try to resist the temptation to label it as instinctive, hardwired, genetic, or innate. By foregoing a label and digging deeper, you will open yourself to consideration of the myriad of factors that shape who we are and why we behave the way we do.
In sum, Stewart-Williams does not understand endocrinology (positing evolutionary explanations for T decreases at around the mid-20s in comparison to socio-cultural ones); he does not understand that socialization in male and female babies makes small gaps wider (Eliot, 2009); he does not understand (though he only implied this and did not outright claim it) that testosterone does not cause violence/aggression/crime. Evolutionary Psychologists really need to get a clue. Positing evolutionary explanations (i.e., just-so stories when they cannot be independently verified of the data they purport to explain) does not lend itself to any kind of explanation for why a certain trait persists in the modern world. Lastly (though he did not make the claim here), the terms “innate” and “genetic” are baseless and empty and do not give us any new information about the trait in question.
Evolutionary Psychology (EP) is a discipline which purports to explain mental and psychological traits as adaptations—functional products of “natural selection”—which are genetically inherited/transmitted. Its main premises is that the human mind can be explained by evolution through natural selection; that the mind is “modular”—called the “massive modularity hypothesis” (see Pinker, 1997). EP purports that the mind is “a cluster of evolved information-processing mechanisms” with its main goal being “to characterize these Darwinian algorithms” (Sterelny and Griffiths, 1999: 336). The problem with EP, though, is that many of the “theories/hypotheses” are just speculation—what is termed “just-so stories” (Gould and Lewontin, 1979; Richardson, 2007; Nielsen, 2009; Fodor and Piattelli-Palmarini, 2010). In this article, I will discuss the massive modularity hypothesis, adaptationism, and the promises that EP makes as a whole.
The massive modularity hypothesis (MMH) proposes that the modules “for” mental processing evolved in response to “natural selection” (Samuels, 1998). To evolutionary psychologists, the mind is made up of different modules that were “selected for” different mental abilities. So, to evolutionary psychologists like Tooby and Cosmides, Pinker et al, much of human psychology is rooted in the Pleistocene (i.e., Tooby and Cosmides’ 5th Principle that “our modern skulls house a stone age mind“) . Evolutionary psychologists propose that the mind is made up of different, genetically influenced, modules that which were specifically selected as to help our ancestors solve domain-specific problems.
Two principle arguments exist for the MMH. Argument (1)—called the optimality argument—is:
- There are adaptive problems in every environment; different adaptive problems in different environments require different solutions, and different solutions can be implemented by functionally distinct modules.
- Adaptive problems are selective pressures; for each unique pressure faced in the original evolutionary environment (OEE), there is a unique module which was selected to solve those—and only those—specific adaptive problems.
- Selective mechanisms can produce highly specialized cognitive modules.
- Therefore, since different adaptive problems require different solutions and different solutions can be implemented by functionally distinct modules, then there must exist differing modules in the human mind which were selected for in virtue of their contribution to fitness.
Or the argument could be:
- Domain-specific processes exist
- These processes arose due to evolution
- Therefore these domain-specific processes that arose due to evolution have a genetic basis
Tooby and Cosmides claim that, distinct modules for certain adaptive problems in distinct environments are superior at solving different problems, rather than a general-purpose cognitive module. They argue that selection can produce different modules in the mind “for” different adaptive problems. Tooby and Cosmides put their argument in their own words as:
(1) As a rule, when two adaptive problems have solutions that are incompatible or simply different, a single solution will be inferior to two specialized solutions
(2) .. . domain-specific cognitive mechanisms . . . can be expected to systematically outperform (and hence preclude or replace) more general mechanisms
(3) Simply to survive and reproduce, our Pleistocene ancestors had to be good at solving an enormously broad array of adaptive problems—problems that would defeat any modern artificial intelligence system. A small sampling include foraging for food, navigating, selecting a mate, parenting, engaging in social exchange, dealing with aggressive threat, avoiding predators, avoiding pathogenic contamination, avoiding naturally occurring plant toxins, avoiding incest and so on
(4) [Therefore] The human mind can be expected to include a large number of distinct, domain-specific mechanisms (quoted from Samuels, 1998: 585-586)
Clearly, the assumption from Tooby and Cosmides is that specific modules for certain adaptive problems in the OEE are superior to general-purpose modules. Samuels (1998: 586) writes:
In the case of psychological traits, in order to use optimality considerations with any confidence one needs to know (a) what features were being optimized by the evolutionary process and (b) what range of phenotypes were available to natural selection. As a matter of fact, however, we have little knowledge about either of these matters.
The key point of the MMH is that, according to Tooby and Cosmides, we would expect that the mind consists of different modules which are “designed” to solve domain-specific problems. If we know what type of adaptive situations happened to our ancestors then we should be able to construct the evolution of a trait by knowing its current functional use and “working backwards”—what is termed “reverse engineering”—inferring “function” from “cause” (see Richardson, 2007: chapter 2); inferring effect from relevant causes (see Richardson, 2007: chapter 3) and disentangling historical ancestry from history and structure (see Richardson, 2007: chapter 4).
As for their second argument:
- It is impossible for human psychology—that contains nothing but general-purpose mechanisms—to have evolved since such a system cannot be adaptive.
- Such a system cannot possibly have solved the adaptive problems faced by our ancestors in the evolutionary past.
- Therefore, the mind cannot possibly have evolved general-purpose mechanisms and had to have evolved different mental modules in order to carry out different tasks.
They defend the argument by stating that the domain-dependence of different errors is a cause of the evolution of different modules of the mind; that information for crucial adaptive behavior cannot be learned by using only domain-specific systems; and that many adaptive problems are highly complex and unlikely to have been solved by general-purpose modules. Therefore, the mind must be modular since this can account for domain-specific problems—while, according to Tooby and Cosmides, general-purposed modules cannot. The argument, though, fails to provide us with any reason to accept the claim that the mind is made up of mostly—or is all made up of—Darwinian modules which were kept around since they were targets of selection.
Clearly, evidence for the modularity of mind is lacking—as is the evidence that reverse engineering “works” for the purpose intended.
Lloyd (1999: 224) writes that:
Given these difficulties – well-known especially since Konrad Lorenz and Nico Tinbergen’s pioneering experiments on animal behavior – it is not scientifically acceptable within evolutionary biology to conclude that, because a given pattern of responses contributes to evolutionary success, then there is some ‘organ’ (or part of the brain) producing such a pattern, that is therefore an adaptation (see Williams 1966). This is because the ‘organ’ or ‘module’ may not actually exist as a biologically real trait, and even if it does, its current function may or may not be the same as the past function(s).
Sterelny and Griffiths (1999: 342) write that “… evolutionary psychology has bought into an oversimplified view of the relationship between an evolving population and its environment, and has prematurely accepted a modular conception of the mind.”
Tooby and Cosmides (1992) coined the phrase “Standard Social Science Model” (SSSM) in order to differentiate their EP model (the “integrated causal model”; ICM) from the SSSM. According to Tooby and Cosmides (1992), the basis of the SSSM is to employ complete general-purpose cognitive modules and to deny any type of nativist modules whatsoever. Therefore, according to Tooby and Cosmides’ characterization of their so-called “opposition”, interesting differences between groups—and, of course, individuals—are due completely to cultural conditioning with absolutely no nativist elements since there are only general-purpose modules. Differences between individuals, according to the SSSM, are cultural products—differences in socialization cause individual differences.
Richardson (2007:179) writes:
Tooby and Cosmides’ portrayal [of the SSSM] is very effective. It is also a piece of sophistry, offering a false dichotomy between a manifestly untenable view and their own. The alternative is one that sees no differences between individuals and no biological contribution to individual or social development. I think no serious figure embraces that view, since, perhaps, John Watson in the early twentieth century.
Tooby and Cosmides also say that “There is no small irony in the fact that [the[ Standard Social Science MOdel’s hostility to adaptationist approaches is often justified through the accusation that adaptationist approaches purportedly attribute important differences between individuals, races and classes to genetic differences. In actuality, adaptationist approaches offer the explanation for why the psychic unity of humankind is genuine and not just an ideological fiction” (1992, 79).
Furthermore, David Buss claims that “Natural selection is the only prospect for explaining human nature” (Richardson, 2007: 182). (Whatever “human nature” is. See Nagel’s 2012 Mind and Cosmos for arguments that the mind cannot possibly have been naturally selected since evolutionary biology is a physical theory and Fodor and Pitatelli-Palmarini’s 2010 book What Darwin Got Wrong for the argument against natural selection as an explanatory mechanism in regard to trait fixation.)
Problems with the adaptationist paradigm
Adaptationism is a research programme in which, according to the Stanford Encyclopedia of Philosophy, ““adaptationists” view natural selection among individuals within a population as the only important cause of the evolution of a trait; they also typically believe that the construction of explanations based solely on natural selection to be the most fruitful way of making progress in evolutionary biology and that this endeavor addresses the most important goal of evolutionary biology, which is to understand the evolution of adaptations.”
Though numerous problems exist with this programme, not least the claim that most—or all—important phenotypic traits are the product of evolution by natural selection. In their book Sex and Death: An Introduction to Philosophy of Biology, Sterelny and Griffiths (1999: 351) write:
Adaptive explanation is an inference from the current phenotype of an organism to the problems that organism faced in its evolutionary past. Obviously, that inference will be problematic if we do not have an accurate description of the current phenotype and its adaptive significance—of the solution that evolution actually produced. The inference from current adaptive importance to adaptation is problematic enough even when the adaptive and phenotypic claims on which it is based are uncontroversial (13.1). The inference is still more problematic when the nature of the phenotype and its adaptive importance are yet to be established.
This is not the main problem with the paradigm, though. The main problem is that all of these theories/hypotheses are “just-so stories”—“… an adaptive scenario, a hypothesis about what a trait’s selective history might have been and hence what its function may be” (Sterelny and Griffiths, 1999: 61). I’d also add that just-so stories are stories that cannot be independently verified of the data that they purport to explain—that is, there is no observation that can disconfirm the adaptationist “hypothesis”, and the only data that “proves” the hypothesis is the data it purports to explain. EP hypotheses are not testable. Therefore EP hypotheses are just-so stories.
Sterelny and Griffiths (1999: 338) “… agree with the central idea of evolutionary psychology, namely, that we should look for the effects of natural selection on the psychological mechanisms that explain our behaviors, rather than on those behaviors themselves.” I disagree, since it is not possible that “psychological mechanisms” can be selected.
What is the relationship between environment and adaptation? First, we need to think of some “problems” that exist in the environment. One example is mate choice: Should one be faithful to their partner? When should one abandon their old partner? When should they help their kin find partners? When and how should one punish infidelity? This problem, pretty obviously, is evidence against the idea that adaptations are explained by the problem to which the adapted trait is the solution (see David Buller’s 2005 book Adapting Minds for strong critiques against “reverse engineering”). If—and only if—a single cognitive device exists that guides a creature’s behavior with respect to the issues of mate choice, the issue is then a single-domain, not multi-domain, problem, while there are different aspects of the same problem (see the questions above). The existence of said module explains why we think of mate choice as a single problem.
Sterelny and Griffiths (1999: 342) are hopeful in EP’s quest to discover our shared “human nature”, “But both the objective and subjective obstacles to carrying out this program remain serious.” The adaptationist programme, however, is unfalsifiable. “Particular adaptive stories can be tested, as we discuss below, but Gould and Lewontin argue that this does not test the idea of adaptationism itself. Whenever a particular adaptive story is discredited, the adaptationist makes up a new story, or just promises to look for one. The possibility that the trait is not an adaptation is never considered” (Sterelny and Griffiths, 1999: 237).
Adaptationist explanations (EP is—mostly—nothing but adaptationist explanation) are not scientific since they cannot be falsified—EP hypotheses are not falsifiable, nor do they generate testable predictions. They only explain the data it purports to explain—meaning that all EP adaptationist explanations are just-so stories. (Also see Kaplan, 2002 for arguments against the adaptationist paradigm.)
Even those who are sympathetic to the EP research programme, rightly, point out the glaring flaws in the programme. These flaws—in my opinion—cannot be overcome. EP will always be “plausible and speculatuve ” just-so stories that purport to explain the evolution of what, supposedly, are traits that were “selected for” in virtue of their contribution to fitness in the OEE. However, we do not (and cannot) know what the OEE was like—we would need a time machine. It is not possible for us to know the selective pressures that occurred on our ancestors in the OEE. We do know that increased reproductive efficiency in the current-day is not evidence that said trait was adaptive and selected in the OEE.
The mind is not modular; Tooby and Cosmides proposed a false dichotomy (their ICM vs SSSM) which is not valid (no one is a “blank slatist”, whatever that is); and the adaptationist paradigm is nothing but speculative just-so stories.
- For EP to be a valid research programme, EP hypotheses must generate testable, falsifiable predictions.
- EP cannot generate testable, falsifiable predictions (the hypotheses are inherently ad hoc).
- Therefore, EP is not a valid research programme.
There is no reason at all to accept any just-so story since these adaptive explanations cannot produce evidence that the trait was not a byproduct, due to genetic drift etc. Therefore EP is not a scientific enterprise; it only tells “plausible”, speculative stories just-so stories “… I view evolutionary psychology as more speculation than science. The conclusion I urge is, accordingly, skeptical. Speculation is just that: speculation. We should regard it as such. Evolutionary psychology as currently practiced is often speculation disguised as results. We should regard it as such” (Richardson, 2007: 25). This is the view that should be accepted in the mainstream, since there can be no evidence for the speculative stories of EP.
Evolutionary psychology (EP) purports to explain how and why humans act the way they do today. It is a framework that assumes that certain mental/psychological traits were useful in the EEA (Environment of Evolutionary Adaptedness) and thusly were selected for over time. It assumes that traits are adaptations then “works backward” by reverse engineering. Reverse engineering is the process of figuring out the design of the mechanism based on its function. (Many problems exist there which will be covered in the future; see also Evolutionary Psychology: The Burdens of Proof by Lloyd, 1999). But let’s discuss snakes and other animals that we have fears of today; is there an evolutionary basis for said behavior and can we really know if there was?
Fear of snakes and spiders
Ohman (2009: 543) writes that “Snakes … have a history measured in many millions of years of shaping mammalian and primate evolution in important respects” and that “snakes … are promising tools for probing the emotional ramifications of deep evolutionary heritages and their interaction with the current environment.” Are they promising tools, though? Were there that many snakes in our EEA that made it possible for us to ‘evolve’ these types of ‘fear modules’ (Ohman and Mineka, 2001)? No, it is impossible for our responses to snakes—along with some other animals—to be an evolved response to what occurred in our EEA because the number of venomous, dangerous snakes to humans and our ancestors was, in reality, not all that high.
Ohman and Mineka (2003: 5-6) also write that “the human dislike of snakes and the common appearances of reptiles as the embodiment of evil in myths and art might reflect an evolutionary heritage” and “fear and respect for reptiles is a likely core mammalian heritage. From this perspective, snakes and other reptiles may continue to have a special psychological significance even for humans, and considerable evidence suggests this is indeed true. Furthermore, the pattern of findings appears consistent with the evolutionary premise.”
Even the APA says that an evolutionary predisposition to fear snakes—but not spiders—exists in primates (citing research from Kawai and Koda, 2016). Conclusions such as this—and there are many others—arise from the ‘fact’ that, in our EEA, these animals were harmful to us and, over time, we evolved to fear snakes (and spiders), but there are some pretty big problems with this view.
Jankowitsch (2009) writes that “Fear of snakes and spiders, which are both considered to be common threats to survival in early human history, are not thought to be innate characteristics in human and nonhuman primates, learned.” For this to be the case, however, there would need to be many spiders and snakes in our EEA.
Philosopher of science Robert C. Richardson, in his book Evolutionary Psychology and Maladapted Psychology (Richardson, 2007) concludes that EP explanations are speculation disguised as results. He says that the stories that state that we evolved to evolved to fear snakes and spiders lack evidence. Most spiders aren’t venomous and pose no risk to humans. In the case of snakes, one quarter are poisonous to humans and we’d have to expect this ‘module’ to evolved on the basis of a minority of snakes that are poisonous to humans:
On this view, at least some human fears (but not all) are given explanations in evolutionary terms. So a fear of snakes or spiders, like our fear of strangers and heights, serves to protect us from dangers. Having observed that snakes and spiders are always scary, and not only to humans, but other primates, Steven Pinker (1997: 386) says “The common thread is obvious. These are the situations that put our evolutionary ancestors in danger. Spiders and snakes are often venomous, especially in Africa…. Fear is the emotion that motivated our ancestors to cope with the dangers they were likely to face” (cf. Nesse 1990). This is a curious view, actually. Spiders offer very little risk to humans, aside from annoyance. Most are not even venomous. There are perhaps eight species of black widow, one of the Sydney funnel web, six cases of brown recluses in North and South America, and one of the red banana spider in Latin America. These do present varying amounts of risk to humans. They are not ancestrally in Africa, our continent of origin. Given that there are over 37,000 known species of spiders, that’s a small percentage. The risk from spiders is exaggerated. The “fact” that they are “always scary” and the explanation of this fact in terms of the threat they posed to our ancestors is nonetheless one piece of lore of evolutionary psychology. Likeways, snakes have a reputation among evolutionary psychologists that is hardly deserved. In Africa, some are truly dangerous, but by no means most. About one quarter of species in Uganda pose a threat to humans, though there is geographic variability. It’s only in Australia—hardly our point of origin—that the majority of snakes are venomous. Any case for an evolved fear of snakes would need to be based on the threat from a minority. In this case too, the threat seems exaggerated. There is a good deal of mythology in the anecdotes we are offered. It is not altogether clear how the mythology gets established, but it is often repeated, with scant evidence. (pg. 28)
The important point to note here, of course, is the assumption that we have an evolved response to fear snakes (and spiders) based on a minority of actually dangerous species to humans.
The EP enterprise is built on what Gould (1978) termed “just-so stories”, borrowed from Rudyard Kipling’s (1902) book of stories called “Just So Stories” (which he told to his daughter) where he imagined ways that in which certain animals look the way they do today. These stories needed to be told “just so” or she would complain.
And the Camel said ‘Humph!’ again; but no sooner had he said it than he saw his back, that he was so proud of, puffing up and puffing up into a great big lolloping humph.
‘Do you see that?’ said the Djinn. ‘That’s your very own humph that you’ve brought upon your very own self by not working. To-day is Thursday, and you’ve done no work since Monday, when the work began. Now you are going to work.’
‘How can I,’ said the Camel, ‘with this humph on my back?’
‘That’s made a-purpose,’ said the Djinn, ‘all because you missed those three days. You will be able to work now for three days without eating, because you can live on your humph; and don’t you ever say I never did anything for you. Come out of the Desert and go to the Three, and behave. Humph yourself!’ (How the Camel got His Hump)
These stories “sound good” but is there any way to verify these nice-sounding stories? One can then make the same argument for EP hypotheses: can they be independently verified? The thing about functional verification is that we cannot possibly know the EEA of humans—or other animals—and thusly any explanation for the functionality of a certain trait are nothing but just-so stories.
Kaplan (2002: S302) argues that:
Evolutionary psychology has not yet developed the tools necessary to uncover our “shared human nature” (if such there is—see Dupre 1998) any more than physical anthropology has been able to uncover the specifics even of such clear human adaptations as our bipedalism. It is obvious that our brains were subject to selective pressures during our evolutionary history; it is not at all obvious what those pressures were.
I don’t deny that we are the products (partly, natural selection isn’t the only mode of evolution) of evolution; I do deny that these fantasy stories can tell us anything about how and why we evolved though. I don’t see how EP can develop such tools to uncover our “shared human nature”—or any other “nature” for that matter—unless time machines are developed and we can directly observe the evolution of trait X that is being discussed.
A simple argument to show that EP hypotheses are just-so stories:
P1) A just-so story is an ad-hoc hypothesis
P2) A hypothesis is ad-hoc if it’s not independently verified (verified independently of the data the hypothesis purports to explain)
P3) EP hypotheses cannot be independently verified
C) Therefore EP hypotheses are just-so stories
This simple argument shows that all EP hypotheses are just-so stories since they cannot be independently verified of the data they attempt to explain. Stories can “sound good”, they can “sound logical”, they can even be “parsimonious” and they can even be the “inference to the best explanation“, (how do you but just because these stories are “parsimonious”, “sound logical” and are the “inference to best explanation” doesn’t make the stories true. The above argument holds for one of HBD’s pet theories, too, the cold winter theory (CWT). It cannot be independently verified either, and it was formulated after national IQ differences were known; therefore CWT is a just-so story.
(I will cover this more in the future.)
Stories about snakes and spiders in our evolutionary history are likely wrong—especially if they derive from what supposedly occurred in our EEA, an environment we know almost nothing about. The fact of the matter is, regarding snakes and spiders, there is no evidence that our fear of them is an adaptive response to what occurred in our EEA. That is a just-so story. Just-so stories are ad-hoc hypotheses that cannot be independently verified, therefore EP hypotheses are just-so stories.
by Scott Jameson
Stockholm Syndrome is when you identify with people who capture and, in some cases, abuse you. I’ve heard two pretty good explanations for this phenomenon. One is that female mammals like powerful male mammals. Makes sense. The other is that abducted people are attempting to maximize their own chances of survival, and perhaps those of any children they already have. Also makes sense. Let me present a third.
Intra-female competition. Imagine that a woman from tribe B is forcibly inducted into tribe A. The women from tribe A know all of the customs of tribe A, speak the language and so on, and they have known the men from tribe A since childhood. All else equal, what does the woman from tribe B have going for her- novelty, perhaps? That’ll wear off pretty quick, likely faster than it takes for her to get familiarized with her new culture. How can she possibly compensate? How can she compete with the women from tribe A for quantity and social status of offspring?
Lots and lots of asabiyah. If she were that much more devoted to her captors, to their religion, and so on, the men may admire her, or perhaps begin to consider her truly one of “their own,” thereby reducing the disadvantage by comparison to the women from tribe A.
All of these line up with the common belief- which I cannot seem to find strong evidence for or against, but here’s a study that mentions a sample of 21 Stockholm cases wherein 18 were women– that women tend to “suffer” from Stockholm Syndrome more often than men.
It’s not a disease in the Darwinian sense, it’s a behavioral response mechanism. The more accurate term is Capture Bonding.
Any one of these three hypotheses may explain it, or perhaps any combination of the three, or maybe something else. You would have to determine selective pressures operating on women currently in a situation wherein capture bonding is common, for example determining which behaviors enabled one war bride to have more children than another. Anybody up for some field work with Boko Haram?
Is the human brain ‘special’? Not according to Herculano-Houzel; our brains are just linearly scaled-up primate brains. We have the number of neurons predicted for a primate of our body size. But what does this have to do with general intelligence? Evolutionary psychologists also contend that the human brain is not ‘special’; that it is an evolved organ just like the rest of our body. Satoshi Kanazawa (2003) proposed the ‘Savanna Hypothesis‘ which states that more intelligent people are better able to deal with ‘evolutionary novel’ situations (situations that we didn’t have to deal with in our ancestral African environment, for example) whereas he purports that general intelligence does not affect an individuals’ ability to deal with evolutionarily familiar entities and situations. I don’t really have a stance on it yet, though I do find it extremely interesting, with it making (intuitive) sense.
Kanazawa (2010) suggests that general intelligence may both be an evolved adaptation and an ‘individual-difference variable’. Evolutionary psychologists contend that evolved psychological adaptations are for the ancestral environment which was evolved in, not in any modern-day environment. Kanazawa (2010) writes:
The human brain has difficulty comprehending and dealing with entities and situations that did not exist in the ancestral environment. Burnham and Johnson (2005, pp. 130–131) referred to the same observation as the evolutionary legacy hypothesis, whereas Hagen and Hammerstein (2006, pp. 341–343) called it the mismatch hypothesis.
From an evolutionary perspective, this does make sense. A perfect example is Eurasian societies vs. African ones. you can see the evolutionary novelty in Eurasian civilizations, while African societies are much closer (though obviously not fully) to our ancestral environment. Thusly, since the situations found in Africa are not evolutionarily novel, it does not take high levels of g to survive in, while Eurasian societies (which are evolutionarily novel) take much higher levels of g to live and survive in.
Kanazawa rightly states that most evolutionary psychologists and biologists contend that there have been no changes to the human brain in the last 10,000 years, in line with his Savanna Hypothesis. However, as I’m sure all readers of my blog know, there were sweeping changes in the last 10,000 years in the human genome due to the advent of agriculture, and, obviously, new alleles have appeared in our genome, however “it is not clear whether these new alleles have led to the emergence of new evolved psychological mechanisms in the last 10,000 years.”
General intelligence poses a problem for evo psych since evolutionary psychologists contend that “the human brain consists of domain-specific evolved psychological mechanisms” which evolved specifically to solve adaptive problems such as survival and fitness. Thusly, Kanazawa proposes in contrast to other evolutionary psychologists that general intelligence evolved as a domain-specific adaptation to deal with evolutionary novel problems. So, Kanazawa says, our ancestors didn’t really need to think inorder to solve recurring problems. However, he talks about three major evolutionarily novel situations that needed reasoning and higher intelligence to solve:
1. Lightning has struck a tree near the camp and set it on fire. The fire is now spreading to the dry underbrush. What should I do? How can I stop the spread of the fire? How can I and my family escape it? (Since lightning never strikes the same place twice, this is guaranteed to be a nonrecurrent problem.)
2. We are in the middle of the severest drought in a hundred years. Nuts and berries at our normal places of gathering, which are usually plentiful, are not growing at all, and animals are scarce as well. We are running out of food because none of our normal sources of food are working. What else can we eat? What else is safe to eat? How else can we procure food?
3. A flash flood has caused the river to swell to several times its normal width, and I am trapped on one side of it while my entire band is on the other side. It is imperative that I rejoin them soon. How can I cross the rapid river? Should I walk across it? Or should I construct some sort of buoyant vehicle to use to get across it? If so, what kind of material should I use? Wood? Stones?
These are great examples of ‘novel’ situations that may have arisen, in which our ancestors needed to ‘think outside of the box’ in order to survive. Situations such as this may be why general intelligence evolved as a domain-specific adaptation for ‘evolutionarily novel’ situations. Clearly, when such situations arose, our ancestors who could reason better at the time these unfamiliar events happened would survive and pass on their genes while the ones who could not die and got selected out of the gene pool. So general intelligence may have evolved to solve these new and unfamiliar problems that plagued out ancestors. What this suggests is that intelligent people are better than less intelligent people at solving problems only if they are evolutionarily novel. On the other hand, situations that are evolutionarily familiar to us do not take higher levels of g to solve.
For example, more intelligent individuals are no better than less intelligent individuals in finding and keeping mates, but they may be better at using computer dating services. Three recent studies, employing widely varied methods, have all shown that the average intelligence of a population appears to be a strong function of the evolutionary novelty of its environment (Ash & Gallup, 2007; D. H. Bailey & Geary, 2009; Kanazawa, 2008).
Who is more successful, on average, over another in modern society? I don’t even need to say it, the more intelligent person. However, if there was an evolutionarily familiar problem there would be no difference in figuring out how to solve the problem, because evolution has already ‘outfitted’ a way to deal with them, without logical reasoning.
Kanazawa then talks about evolutionary adaptations such as bipedalism (we all walk, but some of us are better runners than others); vision (we can all see, but some have better vision than others); and language (we all speak, but some people are more proficient in their language and learn it earlier than others). These are all adaptations, but there is extensive individual variation between them. Furthermore, the first evolved psychological mechanism to be discovered was cheater detection, to know if you got cheated while in a ‘social contract’ with another individual. Another evolved adaptation is theory of mind. People with Asperger’s syndrome, for instance, differ in the capacity of their theory of mind. Kanazawa asks:
If so, can such individual differences in the evolved psychological mechanism of theory of mind be heritable, since we already know that autism and Asperger’s syndrome may be heritable (A. Bailey et al., 1995; Folstein & Rutter, 1988)?
A very interesting question. Of course, since it’s #2017, we have made great strides in these fields and we know these two conditions to be highly heritable. Can the same be said for theory of mind? That is a question that I will return to in the future.
Kanazawa’s hypothesis does make a lot of sense, and there is empirical evidence to back his assertions. His hypothesis proposes that evolutionarily familair situations do noot take any higher levels of general intelligence to solve, whereas novel situations do. Think about that. Society is the ultimate evolutionary novelty. Who succeeds the most, on average, in society? The more intelligent.
Go outside. Look around you. Can you tell me which things were in our ancestral environment? Trees? Grass? Not really, as they aren’t the same exact kinds as we know from the savanna. The only thing that is constant is: men, women, boys and girls.
This can, however, be said in another way. Our current environment is an evolutionary mismatch. We are evolved for our past environments, and as we all know, evolution is non-teleological—meaning there is no direction. So we are not selected for possible future environments, as there is no knowledge for what the future holds due to contingencies of ‘just history’. Anything can happen in the future, we don’t have any knowledge of any future occurences. These can be said to be mismatches, or novelties, and those who are more intelligent reason more logically due to the fact that they are more adept at surviving evolutionary novel situations. Kanazawa’s theory provides a wealth of information and evidence to back his assertion that general intelligence is domain-specific.
This is yet another piece of evidence that our brain is not special. Why continue believing that our brain is special, even when there is evidence mounting against it? Our brains evolved and were selected for just like any other organ in our body, just like it was for every single organism on earth. Race-realists like to say “How can egalitarians believe that we stopped evolving at the neck for 50,000 years?” Well to those race-realists who contend that our brains are ‘special’, I say to them: “How can our brain be ‘special’ when it’s an evolved organ just like any other in our body and was subject to the same (or similar) evolutionary selective pressures?”
In sum, the brain has problems dealing with things that were not in its ancestral environment. However, those who are more intelligent will have an easier time dealing with evolutionarily novel situations in comparison to people with lower intelligence. Look at places in Africa where development is still low. They clearly don’t need high levels of g to survive, as it’s pretty close to the ancestral environment. Conversely, Eurasian societies are much more complex and thus, evolutionarily novel. This may be one reason that explains societal differences between these populations. It is an interesting question to consider, which I will return to in the future.
With all of my recent articles on neurons and brain size, I’m now asking the following question: do neurons differ by race? The races of man differ on most all other variables, why not this one?
As we would have it, there are racial differences in total brain neurons.In 1970, an anti-hereditarian (Tobias) estimated the number of “excess neurons” available to different populations for processing bodily information, which Rushton (1988; 1997: 114) averaged to find: 8,550 for blacks, 8,660 for whites and 8,900 for Asians (in millions of excess neurons). A difference of 100-200 million neurons would be enough to explain away racial differences in achievement, for one. Two, these differences could also explain differences in intelligence. Rushton (1997: 133) writes:
This means that on this estimate, Mongoloids, who average 1,364 cm3 have 13.767 billion cortical neurons (13.767 x 109 ). Caucasoids who average 1,347 cm3 have 13.665 billion such neurons, 102 million less than Mongoloids. Negroids who average 1,267 cm3 , have 13.185 billion cerebral neurons, 582 million less than Mongoloids and 480 million less than Caucasoids.
Of course, Rushton’s citation of Jerison, I will leave alone now that we know that encephilazation quotient has problems. Rushton (1997: 133) writes:
The half-billion neuron difference between Mongoloids and Negroids are probably all “excess neurons” because, as mentioned, Mongoloids are often shorter in height and lighter in weight than Negroids. The Mongoloid-Negroid difference in brain size across so many estimation procedures is striking
Of course, small differences in brain size would translate to differences differences neuronal count (in the hundreds of millions), which would then affect intelligence.
The ability to plan for the future, a significant function of prefrontal regions of the cortex, may be key indeed. According to the best definition I have come across so far, put forward by MIT physicist Alex Wissner-Gross, intelligence is the ability to make decisions that maximize future freedom of action—that is, decisions that keep most doors open for the future. (Herculano-Houzel, 2016: 122-123)
You can see the difference in behavior and action in the races; how one race has the ability to make decisions to maximize future ability of action—and those peoples with a smaller prefrontal cortex won’t have this ability (or it will be greatly hampered due to its small size and amount of neurons it has).
With a smaller, less developed frontal lobe and less overall neurons in it than a brain belonging to a European or Asian, this may then account for overall racial differences in intelligence. The few hundred million difference in neurons may be the missing piece to the puzzle here.Neurons transmit information to other nerves and muscle cells. Neurons have cell bodies, axons and dendrites. The more neurons (that’s also packed into a smaller brain, neuron packing density) in the brain, the better connectivity you have between different areas of the brain, allowing for fast reaction times (Asians beat whites who beat blacks, Rushton and Jensen, 2005: 240).
Remember how I said that the brain uses a certain amount of watts; well I’d assume that the different races would use differing amount of power for their brain due to differing number of neurons in them. Their brain is not as metabolically expensive. Larger brains are more intelligent than smaller brains ONLY BECAUSE there is a higher chance for there to be more neurons in the larger brain than the smaller one. With the average cranial capacity (blacks: 1267 cc, 13,185 million neurons; whites: 1347 cc, 13,665 million neurons, and Asians: 1,364, 13,767 million neurons). (Rushton and Jensen, 2005: 265, table 3) So as you can see, these differences are enough to account for racial differences in achievement.
A bigger brain would mean, more likely, more neurons which would then be able to power the brain and the body more efficiently. The more neurons one has, the more likely it it that they are intelligent as they have more neuronal pathways. The average cranial capcities of the races show that there are neuronal differences between them, which these neuronal differences then are the cause for racial differences, with the brain size itself being only a proxy, not an actual indicator of intelligence. The brain size doesn’t matter as much as the amount of neurons in the brain.
A difference in the brain of 100 grams is enough to account for 550 million cortical neurons (!!) (Jensen, 1998b: 438). But that ignores sex differences and neuronal density. However, I’d assume that there will be at least small differences in neuron count, especially from Rushton’s data from Race, Evolution and Behavior. Jensen (1998) also writes on page 439:
I have not found any investigation of racial differences in neuron density that, as in the case of sex differences, would offset the racial difference in brain weight or volume.
So neuronal density by brain weight is a great proxy.
Racial differences in intelligence don’t come down to brain size; they come down to total neuron amount in the brain; differences in size in certain parts of the brain critical to intelligence and amount of neurons in those critical portions of the brain. I’ve yet to come across a source talking about the different number of neurons in the brain by race, but when I do I will update this article. From what we know, we can make the assumption that blacks have less packing density as well as a smaller number of neurons in their PFC and cerebral cortex. Psychopathy is associated with abnormalities in the PFC; maybe, along with less intelligence, blacks would be more likely to be psychopathic? This also echoes what Richard Lynn says about Race and Psychopathic Personality:
There is a difference between blacks and whites—analogous to the difference in intelligence—in psychopathic personality considered as a personality trait. Both psychopathic personality and intelligence are bell curves with different means and distributions among blacks and whites. For intelligence, the mean and distribution are both lower among blacks. For psychopathic personality, the mean and distribution are higher among blacks. The effect of this is that there are more black psychopaths and more psychopathic behavior among blacks.
Neuronal differences and size of the PFC more than account for differences in psychopathy rates as well as differences in intelligence and scholastic achievement. This could, in part, explain the black-white IQ gap. Since the total number of neurons in the brain dictates, theoretically speaking, how well an organism can process information, and blacks have a smaller PFC (related to future time preference); and since blacks have less cortical neurons than Whites or Asians, this is one large reason why black are less intelligent, on average, than the other races of Man.
Unless you’ve been living under a rock these past two years, you should have come across the Alt-Right movement somewhere on the Internet. What is driving the rise of the Alt-Right and Nationalism in the West? Simple answer: Selfish Genes. We are, at the end of the day, bags of meat trying to replicate our genes and have more children as to increase our genes’ copies of themselves. This rise in the Alt-Right is due to continued demonization of whites. For instance, a Rutgers professor was quoted as saying “All white people are evil, some are only ‘less bad’ than others“. Statements of this nature, said over and over again towards a population that’s about to become a minority (I won’t use any of the estimates as the TFR for populations constantly changes, but it will happen eventually) will eventually have the open-minded ones become sick of what is occurring to people who look like themselves. I hypothesize that more ethnocentric people have higher levels of the brain peptide oxytocin, which in turn leads to higher rates of ethnocentrism. From the article:
Human ethnocentrism—the tendency to view one’s group as centrally important and superior to other groups—creates intergroup bias that fuels prejudice, xenophobia, and intergroup violence. Grounded in the idea that ethnocentrism also facilitates within-group trust, cooperation, and coordination, we conjecture that ethnocentrism may be modulated by brain oxytocin, a peptide shown to promote cooperation among in-group members.
Results show that oxytocin creates intergroup bias because oxytocin motivates in-group favoritism and, to a lesser extent, out-group derogation. These findings call into question the view of oxytocin as an indiscriminate “love drug” or “cuddle chemical” and suggest that oxytocin has a role in the emergence of intergroup conflict and violence.
Oxytocin is known as ‘the love drug’. We can then stretch this to ‘love of one’s race/ethny’. Since political beliefs are heritable (though environment is “still key”, we know that we make our environments based on our genes), I hypothesize that those who are genetically more prone to leaning conservative and ALSO have higher levels of brain oxytocin would be more likely to be ethnocentric and follow a movement such as the Alt-Right. Conversely, people who are genetically more prone towards liberalism (neo-liberalism, not old-fashioned real American liberalism) also have higher levels of oxytocin, except instead of directing their altruistic behaviors towards genetically similar co-ethnics, they direct their altruism towards the out-group. Oxytocin as well as which political ideology one is genetically disposed to, can more than likely be the culprit for these current phenomena that we see in America with both right-wingers and left-wingers.
Some excerpts from my article from earlier in the year Altruism and Ethnocentrism:
We can see ethnocentrism in action in our very own society today. Black Lives Matter is one (extreme) definition of ethnocentrism. La Raza is yet another extreme example. The KKK is another. We can see that in these groups, the motivation to be altruistic to one’s own kind far outweighs being altruistic to those of a different race/ethnicity. Altruism/ethnocentrism is a huge part of the woes of America today.
Which finally brings me to this: why exactly do whites in America not have this same altruistic/ethnocentric behavior towards their own?
Rushton answers this question in one of his AmRen talks: Genetic Similarity Theory and Ethnic Nationalism.
He says that he has really thought about it before and has no definitive answer. But, we are a species who ‘follows the leader’ so to speak. He says to look at individual psychology and not anything to do with being more spineless. That we want to be liked and not disliked. We learn many of our social attitudes (social learning). So we look to people who are similar to ourselves (names some Presidents and others), and that those people tell us things, and since they are high status, we believe it. It’s difficult to go against what those at the top of our society say.
He says what is right and wrong is basically what our neighbors are doing. One outstanding example he gives is how when those at the top say “open your borders and allow more immigrants in” since we are social animals we take to it and want to do it because we ‘follow the leader’. With the majority though right now in America (liberalism/leftism/Marxism), that is the ‘societal norm’ for the country. Therefore, everyone follows that one societal norm, for the most part.
The mass media plays a huge role in this, as I have noted in my previous article on what is going on in Europe and why. Telling whites to hate themselves, that whites are the cause of all evils in the world, makes one begin to hate themselves, their families and, of course, their race/ethnic group. Rushton says many people have said that the media is the cause for many whites with the self-hate that they have. He says back in earlier times, the Jews were self-hating in their identity, because they have assimilated some of the disdain for the wider community. He says the black groups have historically hated themselves because they identified with the conception they have of themselves of the white slave masters/white majority have of them.
Though there is a genetic desire to construct (hi social constructs. =^) ) an identity, the positive cues of that identity has to be picked from the culture (notice anything?).
Finally, David Duke asks Rushton “How would one increase ethnic solidarity and ethnic nationalism”. He says it’s common sense when Goebbels had complete control of the media in Germany, ethnic nationalism shot up, ethnic solidarity increased, out-group hatred increased and the German birth rate shot up. He said the images being displayed on television is the cause for the rise in the aforementioned points. He says, for instance, if you show a lot of blonde haired, blue eyed white babies and women being happy with those white babies in the media, showing women that are happy being stay at home mothers and not working in turn, more women will want to go out and have more babies and be stay at home mothers. He says what you see portrayed on TV, what is portrayed by people who look like you in the media, will make you take to it more.
How is our media today? I noted, very briefly in my previous article, that the media is anti-white. Showing things to bring down the morale of American whites is a huge cause of the lack of altruism and ethnocentrism in American whites.All of these anti-white articles you see in the media daily, all of the anti-white things you see on TV every day, all compound to have what we have in our society today: Marxist whites who go along with groups such as BLM, going completely against their genetic interests, because of media socialization.
Rushton’s AmRen talk on ethnic nationalism should be on your list to view. Media socialization plays a huge part in the self-denigration of whites in America. Being told you’re ‘racist’ just because of your ancestry, to being told that you should be “so sorry” for things that transgressed hundreds of years ago (never mind the fact that the chance that a white person who currently lives in America today most likely has no familial ties of any type of slavery that occurred in the beginnings of this (once great) country. Things like this, when told to someone over and over again, will eventually have them embrace ”’radical”’ ideologies (radical in this sense being far outside of the American norms).
This rise in ‘identity politics’ (hate that phrase, both sides do it) has led to the rise of both the far-left and far-right. But, when you really think about it, ‘identity politics’ is a way to show altruistic behaviors towards genetically similar others. Rushton’s genetic similarity theory (based off of Dawkins’s (1976) theory of selfish genes) explains why these differences how our altruistic acts manifest themselves physically. According to Rushton’s theory, we are more likely to help others who share a similar set of genes. That’s not to say that liberals showing altruistic behavior towards non-co-ethnics refutes the GST theory; on the other hand, it strengthens it.
Americans of mixed ancestry made up for ethnic dissimilarity by matching up on the more heritable traits, whereas the correlation is lower for those traits that are more influenced by the environment. Since the correlation is higher for heritable traits, i.e., BMI, personality, alcoholism, aggressiveness, criminality, psychiatric disorders and so on. Since the correlations are higher than in the environmentally mediated traits and since mixed-race couples match on more heritable traits than on the traits more influenced by the environment, this shows us that even though they are marrying outside of their race/ethnicity, they still match up on the more heritable traits and not the traits more influenced by the environment. So even a liberal’s altruistic actions towards non-co-ethnics shows that GST is still in effect.
The main point is this: our genes are selfish AND they want to produce similar genes. Who is more likely to be genetically similar to yourself? A co-ethnic. This is why nationalism is rising—it works!! Nationalism is rising because the people themselves—the vast majority of ‘vehicles’—are in danger of not being able to ‘replicate’ (their genes). So since the ‘vehicle’ is in danger, the ‘replicators’ have one be more altruistic/ethnocentric to a co-ethnic; oxytocin is the mediator of ethnocentrism as a whole. I’d love to see a study conducted on ethnocentrists and non-ethnocentrists to see what the average level of oxytocin in each group is. I’d bet a large sum of money that the ethnocentrists have higher levels of brain oxytocin while the non-ethnocentrists have a statistically lower amount.
Some of the most distinct genes of individuals will, of course, be found in close family—mothers, brothers, sisters, fathers, first cousins, etc. However, against the worldwide variance, the average similarity between people within a single population is on the magnitude of second cousins, so I posit that those with higher levels of brain oxytocin will be more likely to be ethnocentric over others with less of this hormone. See, there is a reason for so-called ‘racist’ (ethnocentric) behavior: since the average similarity between people within a single population is on the magnitude of second cousins against the worldwide variance, this shows why ethnocentric behavior arises.
The rise of nationalism in Europe follows these same patterns. When looking at diversity in the social context, we can see the negative effects of said diversity in neighborhoods (net negative effect, even with the positives that Putnam cites). Knowing the effects of diversity within a homogenous population, we can see the exact cause for the rise of the Alt-Right.
For some people, diversity decreases social trust (this is my opinion) because they see how the out-group acts: increased crime, not assimilating fully to native culture, how many benefits the out-group receives, etc. Then, since it’s drilled into them that ‘we are all the same in the brain no matter where our ancestors evolved for tens of thousands of years’, that all genetically isolated groups must act the same on average. This then causes what Putnam calls ‘hunkering down’—avoiding engagement with the community. This ‘hunkering down’ leads to less social interaction with neighbors and the community as a whole, causing the social trust that Putnam found in his research. Since one of the ways we match on genetic similarity is by culture, when out-groups move in and begin changing the native culture, the ‘hunkering down’ begins to lessen the one way that population propagates its genes—by masking the native culture—which arose for the sole reason of ensuring that the gene made copies of itself with genetically similar others. The increased diversity changes the average person’s perception of their own people since it’s drilled into them that we all have the same mental capacities and behaviors on average (with deviations from said average due to average individual variation; not any inherent genetic racial/ethnic differences).
On the other hand, for one who is more predisposed to lean right who has a higher amount of brain oxytocin on average, sees the negative effects of diversity along with their countrymen getting hurt, negative (natural) feelings then arise. Moreover, seeing how sections of formerly once nice neighborhoods deteriorate when the out-group moves in further drives these feelings. This is one small example from Putnam’s data that shows how diversity negatively affects societies. I’d be interested in a study on racial/ethnic diversity in third-world countries/the East.
This rise we have seen in the Alt-Right is due to the increase of mass immigration to third-world countries. We want to be around genetically similar others—to propagate copies of our genes. With the gene being ‘selfish’, it wants to make copies of genes like itself. Who’s more likely to share similar genes? Parents, brothers, uncles, sisters, brothers, grandparents, first cousins, second- cousins, and third cousins. Since we are related to co-ethnics on the magnitude of second cousins, this shows how and why ethnocentrism evolved. It was beneficial to be more altruistic towards your ‘clan’, and to derogate the out-group since they are genetically dissimilar. This then extends to today in regards to out-groups being derogated—no matter if they’re genetically similar others or if they share the same personalities or hobbies. We want to be around people like ourselves, to better help out members of the ‘team’. The ‘team’ can be anything from race, ethnicity, baseball team, basketball team, football team, hockey team, etc. To understand ethnocentrism, we must understand human evolutionary history. That’s how you understand the rise of far-right or left politics. Genetic similarity theory is that road map to discovering how and why we act the way we do in regards to out-groups.
Any organism strives for the betterment of its group. Any organism will defend that group. Genes cause people to construct ideologies to improve genetic fitness. That one sentence pretty much sums up the rise of the Alt-Right, and along with the negative effects of diversity, you have the recipe for a new right-wing movement.
This growth of “white survivalism” and militant “Christian Identity” groups such as the Aryan Nations, and the Covenant, the Sword, and the Arm of the Lord, represent a more extreme response to these perceived threats to the AngloSaxon gene pool. If this overall analysis is correct, one might expect similar correlations in deviations from both genetic and ideological norms in other groups. Preserving the “purity” of the ideology might be an attempt at preserving the “purity” of the gene pool. Are ideological “conservatives” typically more genetically homogeneous than the same ideology’s “liberals”?”
The rise of the Alt-Right shows, in my opinion, one of the main facets of human nature—ethnocentrism. It’s seen with the Ashkenazi Jews and Arabs, to Europeans, Africans, and the pretty much isolationist East Asians. The world is beginning to become more ethnocentric—and selfish genes are in the driver’s seat.
I don’t post about politics here because this is a HBD and evolution blog, but I figured I’d weigh in on Trump and ethnic genetic interests (EGIs) since the election is today. My co-writer and I proved the existence of EGIs back in May (see comments for discussion) so we know that EGIs exist. Does Trump exhibit EGIs? Yes, he does. But for who?
Donald Trump, in his own words, “is a big fan of Israel” and boasted about being the first celebrity to endorse Bibi Netanyahu. This is very telling for his EGIs, however, he isn’t Jewish so how does this help his EGIs?
Easy. His daughter converted to Judaism back in 2009, and had a child by Jew Jared Kushner. Most Jews don’t look at converts the same as those who were born Jewish, i.e., those who have a bloodline to Israel. However, in a generation or two, no one will know that Kushner’s child is a non-Jew genetically.
Donald Trump has been very critical of Obama who is very anti-Netanyahu. Trump says about Obama:
“I think President Obama is one of the worst things that’s ever happened to Israel. I think he’s set back [Israeli] relations with the United States terribly, and for people and friends of mine who are Jewish, I don’t know how they can support President Obama. He has been very bad for Israel.”
Yes, very bad for Israel. This was said last September before he knew he was going to run. Trump loves Israel and the Jewish people. In his own words:
“I know so many people from Israel. I have so many friends in Israel. First of all, the Israelis are great businesspeople. They have a natural instinct for business and their start-ups are fantastic. I deal with the Israelis all the time, and I deal with people who are Jewish all the time, whether they are Israeli or not.”
Now, you have his daughter who converted to Judaism and married a Jew. Judaism is passed down through the mother, so the fact that she converted before she had her babe means that the kid is officially a Jew.
Moreover, his son, Eric Trump, married a Jewish woman back in 2014. Knowing this—that his adult-aged children have wed Jews—would you say that he has EGIs for his people (Scots-Irish/Germans) or for Jews?
Trump has had contradictory statements regarding the German Chancellor Angel Merkel. A month and a half ago he compared Hillary Clinton, his opponent tonight, to Angela Merkel. However, he recently said that Angela Merkel is “his favorite leader”. But back in August, Trump said “Germany will never be the same again“, alluding to this ‘migration’ crisis.
Back in March, Trump assured that his election would be “good news for Israel“. So knowing all of his comments on Israel as well as his children’s marriage choices, where do Trump’s EGI loyalties lie?
With Israel. I’ve shown that he loves Jews; that two of his children have married Jews; and I’ve shown that, while having contradictory statements against Jews (telling Jewish donors that he doesn’t want their money), can you say that Trump has EGIs for his ethnicity OR his family’s new ethnicity—Jewish?
Finally, back in July, his son-in-law Jared Kushner wrote an op-ed in the Observer, the online webzine that he owns, called “The Donald Trump I Know“, in which he says:
My father-in-law is not an anti-Semite.
This is not idle philosophy to me. I am the grandson of Holocaust survivors. On December 7, 1941—Pearl Harbor Day—the Nazis surrounded the ghetto of Novogroduk, and sorted the residents into two lines: those selected to die were put on the right; those who would live were put on the left. My grandmother’s sister, Esther, raced into a building to hide. A boy who had seen her running dragged her out and she was one of about 5100 Jews to be killed during this first slaughter of the Jews in Novogrudok. On the night before Rosh Hashana 1943, the 250 Jews who remained of the town’s 20,000 plotted an escape through a tunnel they had painstakingly dug beneath the fence. The searchlights were disabled and the Jews removed nails from the metal roof so that it would rattle in the wind and hopefully mask the sounds of the escaping prisoners.
My grandmother and her sister didn’t want to leave their father behind. They went to the back of the line to be near him. When the first Jews emerged from the tunnel, the Nazis were waiting for them and began shooting. My grandmother’s brother Chanon, for whom my father is named, was killed along with about 50 others. My grandmother made it to the woods, where she joined the Bielski Brigade of partisan resistance fighters. There she met my grandfather, who had escaped from a labor camp called Voritz. He had lived in a hole in the woods—a literal hole that he had dug—for three years, foraging for food, staying out of sight and sleeping in that hole for the duration of the brutal Russian winter.
The fact is that my father in law is an incredibly loving and tolerant person who has embraced my family and our Judaism since I began dating my wife. His support has been unwavering and from the heart. I have personally seen him embrace people of all racial and religious backgrounds, at his companies and in his personal life. This caricature that some want to paint as someone who has “allowed” or encouraged intolerance just doesn’t reflect the Donald Trump I know. The from-the-heart reactions of this man are instinctively pro-Jewish and pro-Israel. Just last week, at an event in New Hampshire, an audience member asked about wasting money on “Zionist Israel.” My father-in-law didn’t miss a beat in replying that “Israel is a very, important ally of the United States and we are going to protect them 100 percent.” No script, no handlers, no TelePrompter—just a strong opinion from the heart.
It seems that every Jew has a Holocaust story that “they’ve never told before.” The Holocaust is really beyond the scope of this blog, however, you can check this out from CODOH on the Novogroduk “graves”. Moreover, here’s a nice thread from CODOH that talks about another “Holocaust miracle” where Trump’s son-in-law says that his Grandfather “lived in a hole in the ground in Russia for three years“. This is all I will say on the matter and I hope you do your own research into these claims from Jared Kushner.
The video that Kushner alludes to is here. The man spoke the truth about Israel. We DO waste our military on behalf of the “Zionist” Israelis. Trump shoots back and says “We will protect them 100 percent.” He calls them “our true friend.” It was just announced back in September that we will be giving Israel 38 billion dollars over the next ten years. OF COURSE they think of us as a “true friend”. We send our people to the Middle East so they can die for Israel in their quest to expand for Greater Israel—war is realizing the Israelization of the world.
Now, PumpkinPerson believes that Trump shows his EGIs through wanting to build a wall and keep out illegal Mexican immigrants. However, I’ve shown above that while he “”MAY”” have the best interests of the American people in mind, he has far more loyalty and allegiance to Israel and the Jewish State.
Does Donald Trump show EGIs? YES! But while he does show EGIs towards his own people, he clearly shows his EGIs more towards the people who his children have chosen to marry. Also, Lion of the Blogosphere, who is a Jew, is voting for Donald Trump, which is protecting his EGIs.
And before anyone asks—yes I voted for Trump. I just hope he does what he says for us and doesn’t pull an Obama and be Hope and Change 2.0 on us.