Showing posts with label Nature. Show all posts
Showing posts with label Nature. Show all posts

Saturday 30 July 2016

On the Supernatural

I want to dispute the value of the term 'supernatural' - the perceived non-natural that is not 'at hand', immediately and potentially useful or easily explicable, and not that material universe that is based on what we can reasonably know or trust to be so from those who do claim to know on the basis of science. The term, which seems not to have been used before the 1520s, has shunted a number of categories into one basket - a problem of accounting for aspects of the world if you insist on creating a meaning outside of it, some things that happen to people for which there is no immediate accounting and the various imaginative creations that have been projected onto the world or exist in that liminal zone where imagination creates functionally useful assets in society for profit, pleasure or social control.

The creation of the idea of the 'supernatural' has separated out a whole set of mind events from other mind events but also other events in the world from the world and packaged them as something 'other' yet culturally identifiable. It is part of the process by which we have failed to critique religion, human perceptual frailties and the imaginative economy alike but also failed to appreciate the complexity of humanity and so the value to it of absurd beliefs and sometimes radical imaginative creativity. Worst of all, the concept includes real events for which there is no current explanation and associates them negatively with absurd belief and the products of human imagination without anything other than a reliance on an equally dubious radical rationalism. It then puts all these in one box where everything in it can be safely dismissed as 'non-scientific', constructions of the human mind, of the hysterical or weak-minded in some quarters and so of little interest or value.

Far better, surely, to separate the three categories of the supernatural - faith, psi and creativity - and reintegrate them back into one world view that is fully 'natural' (that is, ultimately part of the same universe) and so part of the human condition. In other words, treat them critically but with some respect as all human-related. It may complicate matters to do so but would it not offer us the chance to be more true to human reality and help us walk away from attempts to manage what has been called supernatural through denial and alienatory strategies. We should adopt a radical naturalism that includes these phenomena. By restoring the 'supernatural' fully to the natural, bringing it back down to earth so to speak, the opportunity is created not only for a more open analysis of the function of religion, experience and creativity but this change also enables a more profound critique of the thinking systems that try to take the supernatural and create a system out of it that then seeks to command nature without cause or justice.

We think here of non-dualist philosophies and pan-psychism in particular, neither of which explain the world better than a naturalist materialism that takes into account the material basis of the human mind's possible abilities, not only to create a world for itself as observer but also to respond (possibly) to forces that, while mysterious in effects, still have a material basis even if we do not yet have the tools to understand how they operate. What for example may a demon be? A real entity created by God and now rejected? A psychological projection of inner turmoil? An imaginative creation functionally useful in controlling an ignorant person? Or a material external effect on vulnerable minds? At least one reputable psychiatrist seems to think there are really existing evil spirits out there and is about to release a book on it, already touted by the Washington Post.

Personally I tend to the second and third in this particular case but things get more complicated when we speak of ESP (extra-sensory perception) and PK (psychokinesis). These are experiences that sometimes have explanations that show fraud or delusion or coincidence effects but sometimes show patterns in some people at some times that are quite simply not so easily explicable. The demonic possession outlined by Gallagher might easily be transferred to this category of events. Shunting all these into the category of the supernatural, exiling them from the natural, is intellectual cowardice. However, equally, simply saying that they do not exist (scepticism) is no more valid than asserting that they definitely do exist (faith). They may exist but, in possibly existing, they should be seen as natural phenomena with no requirement for alien beings or gods or demons outside nature or materiality and every requirement for understanding better the way the human mind works in its relationship with its own material and social environment (which latter is ultimately just an emanation from the material world).

Mind arises from matter and creates (as information and through communication) a world of intangibles that would cease to exist if the material substrate was destroyed and yet this fluid world is different from inert matter. It could be argued that a more effective model than the split betwen the natural and the supernatural would be between inert and manipulative matter (which might include many of us humans most of the time) and consider something we might have called supermatter within the natural if we were lazy. This element within the material universe but 'super' the expression of the material world in terms of an inert substrate is represented by the mind of individual when it constructs the intangible and cross-communicates with other individuals to create social mind-stuff. Social mind-stuff (culture) is used to create not only the conditions for the manipulation of inert matter but also the conditions for the manipulation of itself, a situation complicated by the self-evidently material base for a new category of inert matter that mimics the mind-stuff of humanity, artificial intelligence, and which, in turn, is capable of entering intangibles into human minds and culture and eventually to manipulate matter just as humans can and do.

With artificial intelligence, it is as if inert matter is catching up with us as matter manipulators, thanks to our own mind manipulation of matter in creating matter that can manipulate matter (the binary code that is the basis for machine computation). Yet all of this is fundamentally materially based. Everything 'mind' is lodged in matter and cannot survive without the survival of the substrate of matter, no matter how manipulated by mind. And so, putting the invented God-things and the products of the imagination aside, we can return to 'unexplained phenomena' and reasonably assume that these two aspects of the case are products of matter directly (the mystery of things not explained which may simply mean that we do not yet understand matter fully) or indirectly as the product of mind in its relationship to matter (as in perceptual delusion) or, finally, as mind working on itself within its material substrate (as in the belief in the God-origin of miracles or the Hollywoodisation of the vampire or werewolf).

So, what I propose is that we abandon the separation of the natural and supernatural as an early modern invention (certainly not something the Ojibwa, say, would understand as a correct interpretation of the world) and re-think the world as one material world:-
  • which we do not entirely understand (leaving room for scepticism about scepticism when effects are unexplained) but which we know reasonably to have a material (natural) base so that all things are ultimately natural and 
  • where the material substrate permits the construction of mind that in turn invents itself, including the conceits of the 'supernatural' (now just a cultural phenomenon whether of God-things or werewolves) based on the frailties of perception and the genius of the imagined.

It is certainly plausible that dream states can create gods and demons. On the other hand, the emergent social mind now also creates tools that mimic the naturally emergent mind (artificial intelligence) and which are apparently immune from individual or social bias (assuming the inputs are logical) and of anything inexplicable. Once we have disposed of god-things and cultural artefacts, we are still left with a residue of the inexplicable whether related to our human minds or to events in the world. There is no mind event that is not emergent from our own minds. The conceptualisation by a mind of a mind event outside itself represents no more that this created mind is a real mind than the mind of an artificial intelligence (as one currently stands) represents a real mind. A material substrate, of which we may not yet know everything and may never know all we need to know to understand it, is still required for all human and silicon and even alien mind events. Even demons are likely to have a material substrate somewhere to justify their existence.

Psi (ESP and PK) and unusual mind events that may or may not exist but they do not need to scare us if they do exist. They are clearly relatively rare and arise from peculiar circumstances. As natural phenomena, they are worthy of study with an open mind even if the final conclusions are either that they are all delusions of emergent human minds or explicable in terms of micro-effects in nature that we had not previously understood - or are simply things in the world that cannot be explained. We have to accept that it is not the lot of humanity (even aided by machine intelligence) to know everything. Absolute knowledge of a system by something within that system is not attainable unless one falls back on the insane belief that Man can become God.

To reverse the formulation of Gyrus in his 'North', it is not 'the preciptation of the gross earthly realm out of the aetheric infinity embracing it' that we are dealing with but 'the precipitation of an aetheric breadth of possibility out of the inert material realm embracing it'. This allows us to position the natural and the supernatural in a different conceptual context - that of immanence and transcendence. The standard model for the supernatural it is to see nature as immanent (which parallels the idea that God is immanent in nature, in all that can be seen and experienced and measured) and the supernatural as transcendent (insofar as the mental model is of God being outside nature, transcending it, as well as immanent).

With God and all forms of prime mover and all forces external to nature removed from the equation, nature can remain immanent but as total materiality - that is, all that is in the universe and all that is in the universe is matter or energy in some form. Transcendence can be re-cast as what emerges out of nature that has to be within nature by the nature of things but which is different in quality - that is, it is self-reflexive consciousness or mind and its associated tools such as reasoning. This raises interesting questions because there is no easy binary here between matter and mind. Self-reflexive consciousness and reasoning as a tool arise not in some sudden spark of creation and binary difference but evolve very slowly over vast tracts of time. The difference between the thing that is self-reflexive and aware and the thing that is not is not 'created' in an instant by some external touch but evolves. Self-reflexiveness and ability to think also varies even within a community of individuals in society in real time and within one individual, often from second to second.

Nor should we fall into the trap of valorising the self-reflexive consciousness so that a mythic narrative emerges that automatically assumes that the more conscious the entity then the higher the value - this is the error of cod-existentialism that valorises untestable claims to 'authenticity'. No attribute is of intrinsic value except situationally - from the stance of the individual or 'society'. No external force ensures a positive valuation, certainly no force outside nature (the world and all that is the case within it). Neither consciousness not authenticity are things-in-themselves but are rather states of being that shift in time in a Heraclitean flux much as 'mind' emerges transcendentally over long periods of time and in fits and starts.

The point here is not to create another binary (always the instinct of the simple analyst of the universe, the raw and the cooked, the hot and the cold, the good and the bad) but to have a concept to hand - the transcendental - that can shift its meaning from something external and unknowable and outside reality (when the supernatural is actually just a sub-set of human imaginative invention) to something that transcends inert matter existentially, that is, that emerges from out of matter (transcends its substrate) to become something that forms and creates itself, not only as the individual mind and personality with its reasoning, conceptualisation, creative imaginings, inventions, discoveries and meanings but as the transcendent creation of cultures of all levels, societies of all types, collaborative artistic creation and scientific discovery, the academic project to increase the bounds of knowledge, the prosecution of projects (not excluding business and war) and so forth.

Thus, it is mind, culture and society that are at least potentially 'supernatural' (on a trajectory that seems to be increasingly disconnected from its material substrate over time) in this different interpretation of the terms although I would dispute that anything can ever be disconnected from materiality. What we traditionally think of as supernatural in two of its key categories (the invention of meaning and imaginative creation) is simply a sub-set of something that is not so much 'above nature' as the highest part of nature (summa autem natura?), at least as seen from the point of view of those who have the ability (the self-reflexive conscious mind) to observe 'nature'. 'Nature' itself does not observe itself but is a thing in which we are embedded and which we have reconstructed from our observations into an abstract.

Matter in itself is inert but there is a distinctly different quality in that which can observe itself and its own substrate and environment. Either there is nothing supernatural here or we might deal with the problem by recasting 'nature' to mean not all that there is in the universe but all that there is that is not self-consciously reflexive and aware of itself, I think this is intellectually lazy - an essentialism after instead of before the fact designed to over-privilege the human (and indeed the thinking machine, alien and demon by pushing them into the place where once we positioned God and a conscious Nature. It might be better here to speak of a radicalisation of a part of nature itself and so stay 'grounded' (literally). This conceit also forces us to consider at what point artificial intelligence elides from being part of the inert material substrate and joins us humans as 'summa autem natura'. It also begs the question of the possibility of independent self-reflexive entities emerging out of the material in the past, existent now or in the future from the material substrate - which opens the door to evidence-based acceptance of aliens, emergent god-things, spirits, angels and demons (to speak in human terms).

The actual evidence for these latter is flaky to say the least but it would be intellectually dangerous to assume that, if the material substrate had permitted 'summa autem natura' in relation to ourselves as human beings, that it might not permit the emergence of similar minds and entities or other minds and entities elsewhere in the universe and/or in time and that they might have a character and experience very different from ours. After all, we are on the path ourselves to creating potentially transcendent artificial intelligences that might well fit the bill for a form of independent self-reflexive and creative consciousness.

This leaves us with the last category of popular ideas of the supernatural, outside religion and popular and folk culture, the paranormal. Psi (ESP and PK and other events) are claimed to happen to people by people themselves (though not easily observable by third parties as true and reliable) and may or may not be entirely delusory events whether as a not understood coincidence or as misperception or as fraud by third parties (and so forth). The immanence-transcendence model here inverts itself because a deluded mind might be seen as a warped transcendence but, if there is anything in these events (and we have an open mind here), then they are still events within nature and not supernatural. They are part of the material substrate and so part of the natural. They are simply natural events that we either cannot or do not understand.

Psychological effects that are interpreted as 'paranormal' (a better term than cloaking these events with the term supernatural) and physical events involving a warping of our understanding of causation, time and space may not be automatically considered to be absolutely impossible so much as probably impossible with the information and reasoning at our disposal as transcendent minds at this time and in this space.

If the concept of the supernatural is something we have inherited from our own earlier stages of development, it works functionally as part of our cultural tool kit insofar as we value religion or create imaginatively for our own psychological needs. It is equally a rather sloppy way of moving forward as self-reflexive consciousnesses in our own right. It would be better to make a functional assumption of absolute materialism and then enclose all current definitions of the supernatural as properties of 'summa autem natura' (the highest form of nature from our own perspective), excepting the 'paranormal'. This latter should be separated out as either a delusion or, on further investigation, an unknown element of the totality of materiality.

The 'paranormal' becomes a potentiality for knowing rather than something known, mirroring our creation of artificial intelligence as a potentiality for consciousness rather than as something conscious in itself now. The first offers the potential for changing our perception of material reality without any necessity for 'spiritual' inventions while the latter offers the potential for changing our assumptions about the uniqueness of our own transcendence (whether later to be challenged further by the discovery of aliens or demons is probably something not within the capability of current science). Our working assumption can be that we do not have to worry over much about aliens and demons (except as cultural artefacts) but that we should be concerned about understanding artificial intelligence and we should continue to be sceptically interested in the paranormal without throwing too much resource at it.

Beyond this, we continue to transcend as much as we can because that is what we do subject to our all-too-obvious dependence on immanent matter (after all, we die!). We continue, driven by our own 'nature' at least amongst those so inclined, to employ our transcending minds in the manipulation and exploitation of the material universe, of 'nature', in order to assist our continuing process of transcendence - regardless of conservative attempts to try to give immanence/matter priority over our own transcendence. We think here of those retrograde elements in the green movement that go beyond sustainability in our own interest as transcendent-within-immanence beings into a preference for the invented rights of 'nature' over humanity or those 'spiritual' elements who insist on inverting the situation and trying to give an untenable transcendent quality to nature itself whether overtly as God or as some form of pantheism or pan-psychism.

The supernatural thus can quietly disappear from view except as cultural artefact (meeting psychological needs) or as an incorrect descriptive term for that which is not known or cannot be known. It is a term we no longer need philosophically if we have the concept of emergent consciousness as 'summa autem natura' (this is the best term I have to hand and welcome others' thoughts) from its own perspective as observer of its own condition when even Psi (ESP and PK), aliens, gods, angels and demons can only either be inventions of ourselves or a knowable (but not necessarily by us) part of nature.

Saturday 18 October 2014

On Male & Female Brain Differences ...

To many liberals honed on the language of equality, evidence of fundamental differences in the architecture of female and male brains can be dealt with in only one way - denial. But at some stage, they are going to have to face the implications of any neuroscientific findings that undermine much of their universalising project.

We have already provided a number of essays on how social reality is constructed but the essence of that reality is that it is a simulacrum, a creation of often a minority of leading persons in order to enable effective communication and to ensure the control and management of resources.

We have looked (elsewhere) at how sense inputs reconstruct objective reality as individual reality and at how no single individual can see the world precisely as another sees it. The conclusion we have drawn is one of mutual toleration within a framework of a culture that is designed to limit exploitation and protect the vulnerable on a broadly democratic basis.

The Problem of Universalism

The question of male/female difference of brain function is important because the universalism that so often denies individuals the rights of dissident self-expression against the social norm is criminally compounded if this difference fails to be recognised where it exists.

By taking two sets that have already been inappropriately normalised as the type of man or the type of woman (to the detriment of particular individuals in both abstract categories) and repositioning them as one abstract category of human, male and female individuals are being even further alienated from their intimate individual natures.

This is not to be construed as a statement against the equality of persons in regard to their rights to make their own choices within their categories or in relation to other categories but only as a statement against the turning of persons into abstractions where the equality is simply the equality of things to be manipulated by 'guardians of values'.

Understanding differences between broad categories is a first step in unravelling the claims of universalism on the path to understanding the differences between all persons and so their equality as persons with free choices rather than as objects of ideology.

The Politics of Sexual Difference

This is politically important. The then-President of Harvard University was lambasted simply for asking the question in 2005 whether innate differences in male and female brains might be a factor in the scarcity of women in scientific fields. He was right to ask the question but not to assert an answer.

It is a legitimate question.To introduce quotas within functional elements in society that do not accord with objective reality (even if that reality may have cultural or social aspects) is asking for social functionality to be diminished. It may place the liberal who asks for quotas, as social engineer, on a par with the creationist in their potentially damaging effect on knowledge.

The questions must be asked but the answers must not be assumed because it is factually true that there are great women scientists (though few) just as there are men who cannot count beyond ten. The reasons why this is so should be uncovered before blundering in with short term solutions that damage the very enterprise of science itself. The issue may not be one of ability but of will - will to be a scientist perhaps.

This applies across society and across categories. We need to understand difference and then build a society in which difference has no meaning in relation to fundamental equality - which is the equality of autonomy between free individuals rather than the equality of categories manipulated by their leadership cadres.

Culture and Nature

Let us be clear - there is no evidence at all that brain difference is linked to any intellectual ability that should stop women from becoming scientists if they so choose so the issue may be one of certain ideologues trying to demand that women make choices that they do not wish to make and then getting angry at their 'failure' to fit the model as much as one of some claimed patriarchal denial of the right of women to be scientists.

Difference may lay partly in genuine economic or social disadvantage (i.e. blocks to free choice) or it may lie in free choice itself (in which case, it is no-one's business but that of the woman herself). She does not have to become anything she does not wish to be, especially something implicitly dictated by an ideological feminist.

The modern liberal mind seems unable to draw this distinction, one which leads (in this author's view) to a commitment to a socialism of enablement and a libertarianism of uptake that works against the ideology of the middle class progressive who is obsessed with avoiding the serious investment required in social change whilst imposing his or her own values on others.

But let us return to the science - where are men and women really different and what may this mean? The answers are vital medically because, as in issues of race, inheritance does have meaning in disorders of the body and the mind and, if we do not understand these differences, we cannot cure them.

The Revolution in Understanding Difference

If brains are different, then perception and use of language may be different. This means that the very structure of research and experimentation in the social sciences will need to take account of these differences even before research starts.

The revolution in understanding male and female brain differences is very recent. It is no accident that the world of the baby-boomers who are like a sclerotic dead weight on our culture had an academic view that restricted sexual difference to reproduction and mating - and so the brain bits related to sex were judged the only points of difference.

Any liberal of a certain generation with a smattering of scientific education would have assumed, without further enquiry, that males and females were different only in their sex hormones and hypothalamus. The fact that observable human behaviour day-to-day suggested otherwise was put down to culture, not entirely without reason but not entirely with reason either.

All this has been overturned very recently - so recently that the world-views of someone under thirty and over thirty may be be radically different. A conceptual revolution is taking place where the dead weight of the past may culturally inhibit the revolutionary changes required to progress. A conflict expressed perhaps in the war between feminist generations as much as anywhere.

Where Differences Lie


There are now demonstrable differences in many areas of cognition and behaviour - memory, emotion, vision, hearing, the processing of faces and responses to stress hormones and across the brain, far beyond the hypothalamus.

Given that we construct the world through the management of sensory inputs, any differences in mind management techniques and sensory input imply qualitative differences in how men and women construct their reality. Here are some of the findings:-
  •     parts of the frontal cortex (basis for many higher cognitive functions) are bulkier in women than men
  •     parts of the limbic cortex (involved in emotional responses) are bulkier in women than men
  •     parts of the parietal cortex (involved in space perception) are bulkier in men than women
  •     the amygdala (which responds to emotionally arising information) is bigger in men than women
The existence of these discrepancies (which, of course, do not relate to particular individuals but to the bulk of persons in a category who are identifiable as being in that category) is a sign (based on experience with other animals) of difference in function - brains are working differently. What this means beyond the crude fact is up for grabs.

Differences also exists at the cellular level. Women have a greater density of neurons in the parts of the temporal lobe cortex associated with language processing and understanding. Similar findings have been made in the frontal lobe. What this means (perhaps nothing) is also not yet clear but it may have a great deal to do with enhanced female verbal fluency - or it may not.

This fact of difference (if not the meaning of difference) is all just common sense and it is amazing that it has taken so long to sweep away ideological presuppositions and think about what we are as biological entities. Sex hormones affect the fetal brain so if sex hormones were recognised as a cause of difference as early as the 1960s, then other effects should have been expected.

The Thorny Question of Toys

The latest thinking is quite clearly that sex differences in cognition are not just cultural and do not result from later hormonal changes in puberty but owe something to these sex hormones and are present from birth. To a degree, men and women think a little differently even before they are born. Again, common sense to any non-ideological mother.

The obvious bone of contention has been the way children choose toys in a sexually dimorphic way, with saddened liberal mothers unable to get their daughters weaned off Barbie or their sons from guns. They have been wasting their time. Even monkey kids choose the same type of gender-specific toys.

What is going on - male toys are things that are propelled through space (cars) or involve rough and tumble play whereas female toys are centred on nurturing. This much is in accord with otherwise over-egged behavioural psychology.

To bend the child away from these instincts is to try to drive brain plasticity from outside - an aggressive approach to acculturation that might be feasible, much as the Soviet theory of the New Man was theoretically cogent, but is asking for trouble with most kids in most situations.

Babies, Faces & Anxiety

One year old girls spend more time looking at their mothers than their male equivalents who prefer film of cars rather than film of faces. Hollywood budgets are built on these differences. When extended back to one day old children, still we apparently find that girls prefer faces to mechanical objects and vice versa for boys. That's day one of existence if true ...

Differences are also clear in how the sexes react to the environment and stress, a material political fact in itself. There are indications (in experiments unrepeatable in humans for ethical reasons) that separation anxiety has different effects in young males and females which may help to explain why anxiety disorders may be more common in girls than boys.

The difference in size of the hippocampus (memory storage and spatial mapping) also appears to be relevant. Men appear to navigate by 'dead reckoning' (estimating distances in space and orientation) while women navigate by landmark. This again is observable in daily life and in rats, so it seems to be in-built in mammalian sexual difference.

Rats!

Although the experiments are done with rats and not humans, females seem to increase neuronal connections in a highly stimulated environment and this is linked to memory formation. Complexity seems to have no effect or the opposite effect on males - they start to forget, perhaps to trim the sensory inputs that they cannot cope with.

However, if a complex but stable environment (with many persons involved) enhances the life of female rats but slightly troubles the male rat, the opposite takes place when stress is induced into the picture - and this accords with everyday observation to a degree.

Male rats learn better if stressed but stress has the opposite effect on female rats. On the other hand, female rats are better at dealing with chronic stress than male rats whereas female rats suffer more from acute stress. Rats are not humans but intuitively we can see two possible social conclusions straight away:-
  • A society of men and women must be sufficiently stable and complex with many personal interactions to keep women happy but men need to escape periodically or they become dulled, stressed and unhappy: this seems intuitively correct;
  • Teaching boys requires very different approaches to teaching girls - optimal learning requirements are different for the sexes: again, intuitively, this seems right.
Memory is another area of difference where ethical guidelines permit the scientists to move from rats back to humans. There are hemispheric differences in processing emotional difference in responding to stressful events that suggest that the sexes require different approaches to dealing with trauma.

Medical & Social Considerations

Depression also looks as if it should be considered differently in men and women. Men, generally, produce serotonin at levels 52% higher than women. This may be a factor in increased incidence of depression amongst women. Findings on addiction suggest that women can become dependent, on stimulants in particular, more easily than men. We do not present all this as fact but as possibilities - not to be evaded or avoided for ideological reasons but investigated.

There are also (apparently) differences underlying schizophrenia which are currently poorly understood but the point has been made - overall, biological sexual difference is becoming important in understanding the treatment of medical disorders of the brain and, I contend, is becoming a relevant factor in social and political policy as well without in any way diminishing the fundamental human equality which is now accepted as a value in a modern liberal society.

The sensible approach remains one based on the equality of individuals as rounded persons (rather than as universal abstracts) but, within this, the recognition of sexual difference suggests a true equality between males in general and females in general which takes account of their separable nature. We may go further and say that the equality of individuals is not in the least compromised by recognising any form of difference, including age, ethnicity, interests or whatever is simply different.

To force a little boy into playing with a doll for ideological reasons is as oppressive as placing a teenage girl under high achiever stress in a mixed school. To force a male into the chronic misery of a large communitarian household without escape or authority is as cruel as to deprive a woman of extended society and intellectual stimulation.

Some Tentative Political Conclusions

A 'liberal' society that is built around turning a few women into male-type leaders and suppressing the risk-taking and experimentation of males is not a liberal but an oppressive society, as oppressive as one that treats women as second-class citizens and deprives of them of full access to education and their fair share of resources.

And it is important to understand that there is no 'normal', average or typical type of person but only massive variation within a general type of difference so there will always be the man who is more like most women in some aspect than some women and vice versa.

The point is that, in treating persons as individuals, the differences do not matter but the differences do need to be understood when generalising into public policy that is (as a fundamental value) fair to all individuals. Identity politics, for example, is a negation of difference but politics that enable notionally 'normal' male or female behaviour to flourish (even if some men flourish undertaking female modes and some women male modes) is getting closer to a truly liberatory political culture. 

[This posting owes its science to the neuroscientist Larry Cahill's article 'His Brain, Her Brain' in Scientific American but the social and political conclusions are entirely my own]