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Posts Tagged ‘ethics

a brief and fairly obvious point

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Someone has pointed out that Frump is a bully and a thug. That person witnessed his bullying via the television, as did, presumably, millions of others. The bully, on being named, proceeded to ridicule the person making the point. The invalidity of such a response, a response which has a well-known designation, ad hominem, was shown some 2,500 years ago. It is equally invalid today of course. This invalidity applies equally to all those who say that actors, musicians etc should not be listened to on matters political, or indeed any other matter. A person’s claim must be based on its truth value, not on the person’s profession or supposed expertise.
So it’s of absolutely no relevance whatever whether Frump’s bullying and thuggery is highlighted by an under-rated actor, an over-rated actor, a journalist, an academic or a drunken person in a pub. The only relevant question is whether the claim is true. And it’s a very easy question to answer in this instance ,as the evidence is bigger than your average blue whale.

etc, etc

Written by stewart henderson

January 10, 2017 at 1:58 pm

what should a vegan’s pet eat, and other immortal questions

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Jacinta: So here’s a question – if vegans have pets – say a cat or a dog – do they feed them only vegetables?

Canto: I don’t know, I suppose it would depend on the vegan…

Jacinta: Shouldn’t it depend on the pet? Cats and dogs are carnivores aren’t they? So it would be a form of cruelty to deprive them of meat. Might even be murder.

Canto: We don’t extend murder to the killing of other animals.

Jacinta: Many vegans do.

Canto: Good point. I once read an article by a vegan philosopher, who gets out of those problems by declaring that using animals as pets is unethical. A form of slavery, I suppose.

Jacinta: So, we free the pets? Along with the cows, the sheep, the donkeys, the camels, the water buffalos, the horses, the chooks and pigeons and all those other creatures we’ve used and abused so horridly?

Canto: Well, from memory – I’ll never be able to hunt out the article – he didn’t address the issue of those animals already under captivity of one sort or another. He was simply wanting to argue on general principles that using animals for our personal benefit was unethical.

Jacinta: Even if it benefits the animal?

Canto: Well I suppose the argument would be that even a well-treated slave is still a slave.

Jacinta: But if you free a dog, say, what would happen to it? You’re actually throwing it out of its home, it has nowhere else to go. And I believe that there’s historical evidence that dogs, and probably cats too, have adapted to live with humans. That it was their choice, in a sense. Like pigeons in the city getting fat on leftover bits of hamburger, with no obvious ill-effects. Do pigeons get diabetes?

Canto: Well there’s an obvious difference between scavenging pigeons and pets. Pets don’t choose to become pets. I think that’s the way the argument would run. Unfortunately there are a lot of current pets who would suffer from being set free, but that’s not the issue.

Jacinta: I think I see. We look after the pets we’ve got, then bury them and don’t have any more. And this wouldn’t mean the end of all dogs because there are plenty of strays – scavengers – to maintain the species. And no more enforced ‘pedigree’ breeding – I’d be all for that. But there’s a problem – in order to get rid of all the pets, you have to stop them breeding and that would mean desexing them – a gross interference of their right to reproduce. And if you allow them to reproduce, you must surely bear responsibility for their offspring as your home is theirs. You’re caught in a trap, you can’t walk out, because you love them babies too much.

Canto: You’re looking at it all from a practical perspective, which is all fine and good and relevant, but I think the issue for this philosopher was, I think – judging from him being a vegan – that all such usage of animals – pets as cuddly toys, dolphins as trained performers, horses and camels as pack animals, etc, not to mention farming them for slaughter – is unethical. What do you think of that as a general principle?

Jacinta: I don’t think it holds up, because species take advantage of other species all the time, and not just by preying on them. Sharks have their remoras, we have lice more or less specially adapted to us, roses have their aphids, in fact everywhere you look you have species making use of other species. And presumably being a vegan he marks a strict boundary between animal and vegetable and in reality that’s quite a fuzzy boundary, like with coral. And what about insects, what’s the vegan take on that?

Canto: Presumably negative – they have eyes and antennae and feelings of some sort.

Jacinta: Yes, well it’s a step too far I think. Yes we have a moral responsibility to avoid causing undue suffering….

Canto: Well what about this argument. Because we can survive – and indeed thrive – on only plants, we should do so. I mean, you’re talking about species that, say, are mostly carnivorous – that won’t survive if their food supply dries up. Sharks, for example, they can’t just become vegan, they’ve adapted to a very specific diet. We on the other hand are omnivores, we can dispense with certain varieties of food, including meat, and still live healthy lives, perhaps.

Jacinta: Hmmm, that’s definitely a more difficult question. I do believe that being omnivores, or being very adaptable in our diet has stood us in very good stead in the past, like in the last major  ice age when we almost died out apparently. So I’m wondering whether confining our diet might not expose us to greater risks…

Canto: It may not even mean confining our diet – we could synthesise many of the proteins and other nutrients we nowadays get from meat. We’ve already done that, probably.

Jacinta: Well I’ve heard they’re still a long way from synthesising anything that really has the nutrients as well as the texture, flavour, odour and je ne sais quoi of meat. At under about $200, 000.

Canto: And if they achieved that feat, and got it down to competitive prices, would you go vego?

Jacinta: Well of course – I’d have no reason not to. I just don’t think it’ll happen in my lifetime.

Canto: But let’s say for argument’s sake that it does – would you feed this synthetic stuff to your pet cat?

Jacinta: Ah so we come full circle. Yes I would, since it would be more or less chemically identical to meat.

Canto: But animals that have adapted to become carnivores have also adapted to become hunters. They go together. Haven’t you turned your cat from its proper course in life?

Jacinta: No, she became removed from her ‘proper course’, if there is such a thing, by becoming my pet, whether by her choice or mine, or the choice of her ancestors. Likely she will keep up her hunting skills, catching flies and insects and mice and small birds, if she can. And she will benefit from being my friend, as I will benefit from being hers. Like all good friends, we’ll use each other for own purposes, which we hope will be, and will try to make, mutually beneficial.

Canto: Okay, no further questions your excellency.


Written by stewart henderson

March 31, 2016 at 11:37 am

The philosophers want more power

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tamsin shaw

tamsin shaw

Canto: Well I suppose the apparent detection of gravitational waves should be capturing our attention more than anything else right now, but it’s very well described in The Economist, and in many other places, and we’re no astrophysicists, and we did promise to focus a bit more on philosophical issues, so…

Jacinta: But we’re no philosophers. But we’re philosophasters at least, so let’s have a go.

Canto: Well I came across an article on Three Quarks Daily which vaguely gave me the irrits, so with your help I want to explore why.

Jacinta: Right. The essay is called ‘The psychologists take power’, the author is Tamsin Shaw and it was originally published in the New York review of books.

Canto: Yes, and on reading it in full I find it an interesting but confused piece, which seems to take the failings of certain individual psychologists as an example of the failings of psychology as a whole, and even of neurology. Shaw seems to be entering the philosophy versus science debate, on the side of philosophy, but I don’t find her arguments convincing.

Jacinta: The essay seems to divide into two parts, first a general critique of psychology and neurology, which can be summed up by the title of a philosophical essay by Selim Berker, which she quotes approvingly, ‘the normative insignificance of neuroscience’. The second part is an account of how certain professional psychologists, practitioners of the ‘positive psychology’ pioneered by the influential Martin Seligman, colluded with the US government in providing dubious evidence for the psychological effectiveness of torture in eliciting valuable information from ‘enemies of the state’. Shaw clearly wants to link these unethical practices to what she might want to call ‘the normative insignificance of psychology’.

Canto: Yes, and it’s a bit of a dangerous game – you might as well label Heidegger’s allegiance to the Nazi party, or Althusser’s murder of his wife, as examples of ‘the normative insignificance of philosophy’.

Jacinta: Ha, well Althusser was declared insane at the time, no doubt by psychologists, who would be examining Althusser to determine whether he was, while strangling his wife, capable of understanding and following the normative rules of his society. Such determinations are hardly normatively insignificant, even though, no doubt, individual psychologists might make different determinations, due to levels of competence, corruption, ideological considerations and so forth.

Canto: Right, but let’s look more closely at Shaw’s essay, and pick it apart.

Jacinta: Okay, but first let’s make a philosophasters’ confession. Shaw mentions eight or so books or sources at the head of her essay, which form the basis of her discussion, but of those we’ve only read one – Pinker’s eloquent tome, The better angels of our nature. And we don’t intend to bone up on those other texts, though no doubt we’ll refer to our own reading in our responses.

Canto: And we are reasonably familiar with Jonathan Haidt’s work and ideas.

Jacinta: So Shaw begins her essay with the overweening ambition of behaviourist extraordinaire B F Skinner, a pretty soft target these days. I have no problems with criticising him, or Freud or any other psychologist whose theories get way out of hand. Shaw’s concerns, though, are specifically about the moral sphere. She feels that a new breed of psychologists, armed with neurological research, are making big claims about moral expertise. Here’s a quote from her essay:

Neuroscience, it is claimed, has revealed that our brains operate with a dual system for moral decision-making.

Canto: I like the ‘it is claimed’ bit. Claimed by who? Someone has put forward that hypothesis I’m sure, along with their reasons, but most neurologists bang on about neurology being a field in its infancy, and most findings are highly contested, it seems to me.

Jacinta: Shaw may be referring to the work of Daniel Kahneman – a psychologist not a neurologist – who distinguished between system 1 thinking (intuitive, less conscious, rough-and ready) and system 2 thinking (reasoned, conscious, more changeable depending on inputs and knowledge). But really there are many dual-process theories going back at least to William James. But Shaw is explicitly referring to the fMRI imaging work of the neurologist Jonathan Cohen, who analysed brain activity when subjects were asked to think about moral hypotheticals.

Canto: Yes and she’s quite straight about describing the two systems apparently highlighted by Cohen’s research and the brain regions associated with them, but becomes scathing in dealing with Joshua Greene, Cohen’s co-researcher, whom she quite deliberately introduces as a mere ‘philosophy graduate student’, whose interpretation of the research she describes thus:

Greene interpreted these results in the light of an unverifiable and unfalsifiable story about evolutionary psychology. Since primitive human beings encountered up-close dangers or threats of personal violence, their brains, he speculated, evolved fast and focused responses for dealing with such perils. The impersonal violence that threatens humans in more sophisticated societies does not trigger the same kind of affective response, so it allows for slower, more cognitive processes of moral deliberation that weigh the relevant consequences of actions. Greene inferred from this that the slower mechanisms we see in the brain are a later development and are superior because morality is properly concerned with impersonal values—for example, justice—to which personal harms and goals such as family loyalty should be irrelevant. He has taken this to be a vindication of a specific, consequentialist philosophical theory of morality: utilitarianism.

Jacinta: Okay, so here’s where psychology – especially evolutionary psychology – first comes under attack. It’s often said to present just so stories, which are necessarily highly speculative, as if they are facts. But I would question whether these speculations, or hypotheses, are unverifiable (forget about falsifiability, a term made popular by Karl Popper but which has come under heavy criticism since, both by scientists and philosophers of science, and I suspect Shaw has simply used it as a ‘double whammy’ to vilify Greene), to me they’re important and useful, and in any case are rarely presented as facts, at least not by the best psychologists.

Canto: So how do you verify this hypothesis, that fast, rough-and-ready responses for dealing with immediate dangers are systematically different from slower, more sophisticated responses that deal with the ‘impersonal violence’, the many restraints, justified or not, on our personal freedoms that we deal with on a daily basis?

Jacinta: Well one obvious way is through neurology, a scientific field still in its infancy as you say. Clearly the system 1 responses would be shared by other complex social mammals, whereas system 2 thinking is much more language-dependent and unique to humans – unless cetaceans have developed complex language, which is far from being out of the question. New techniques for mapping and exploring neural pathways are coming up all the time, as well as non-invasive ways of exploring such pathways in our closest mammalian relatives.

Canto: Good point. So to go to the second part of the above quote, Greene is presented (and I wonder about whether Shaw is fairly or accurately presenting him) as finding system 2 thinking as superior because it deals with more abstract and less personal values, whereas I would prefer to think of this system as a further adaptation, to a human existence that has become more socially complex, systematic and language-based. And in this, I’m apparently in line with the thinking of psychologists Shaw takes aim at:

Many of the psychologists who have taken up the dual-process model claim to be dismissive of philosophical theories, generally. They reject Greene’s inferences about utilitarianism and claim to be restricting themselves to what can be proved scientifically. But in fact all of those I discuss here are making claims about which kinds of moral judgments are good or bad by assessing which are adaptive or maladaptive in relation to a norm of social cooperation. They are thereby relying on an implicit philosophical theory of morality, albeit a much less exacting one than utilitarianism.

Jacinta: But I detect a problem here. You’ve talked about adaptation to the fact of growing social complexity, and the need to co-operate within that complexity. Shaw has written of a ‘norm of social co-operation’, by which she means an ethical norm, because she claims that this is the implicit philosophical theory of morality these psychologists rely on. But that’s not true, they’re not claiming that there’s anything moral about social complexity or social co-operation. We just are more complex, and necessarily more co-operative than our ancestors. So it’s kind of silly to say they’re relying on a less exacting moral philosophy than utilitarianism. It’s not about moral philosophy at all.

Canto: And it gets worse. Shaw claims that this phantom moral ethic of social co-operation is greatly inferior to utilitarianism, so let’s look at that normative theory, which in my view is not so much exacting as impossible. Utilitarianism is basically about the maximising of utility. Act in such a way that your actions maximise utility (act utilitarianism), or create rules that maximise utility (rule utilitarianism). So what’s utility? Nothing that can be measured objectively, or agreed upon. We can replace it with happiness, or pleasure, or well-being, or Aristotle’s eudaemonia, however translated, and the problem is still the same. How do you measure, on a large-scale, social level, things so elusive, intangible and personal?

Jacinta: Yes, and look at how laws change over time, laws for example relating to homosexuality, women’s rights, the protection of minorities, and even business practices, taxation and the like; they’re all about our changing, socially evolving sense of how to co-operate in such a way as to produce the best social outcomes. This can’t be easily bedded down in some fixed normative ethic.

Canto: Yes, Shaw seems to imply that some deep philosophical insight is missing from these psychologists which makes them liable to go off the rails, as the second half of her essay implies, but I’m very doubtful about that. But let’s continue with our analysis:

Rather than adhering to the moral view that we should maximize “utility”—or satisfaction of wants—they are adopting the more minimal, Hobbesian view that our first priority should be to avoid conflict. This minimalist moral worldview is, again, simply presupposed; it is not defended through argument and cannot be substantiated simply by an appeal to scientific facts. And its implications are not altogether appealing.

Jacinta: But surely she’s just assuming that ‘they’ – presumably all the psychologists she doesn’t like, or is it all the psychologists who posit a two-tiered system of decision-making? – take the view that avoidance of conflict is the highest priority.

Canto: Well I must say that Jonathan Haidt seems to take that view, and it’s something I find uncomfortable. So I agree with Shaw that Haidt ‘presupposes that the norm of cooperation should take precedence over the values that divide us’, and that this view is dubious. It’s just that I suspect my own view, that there are values more important than co-operation, is also a ‘presupposition’, though I dislike that word. But more of that later perhaps.

Jacinta: Right, so Shaw refers to the sinister implications of a minimalist Hobbesian worldview, supposedly held by these psychologists. What are they?

Canto: We’ll get there eventually – perhaps. Shaw describes the work of the ‘positive psychology’ movement, stemming from Martin Seligman and practised by Haidt among others, including Steven Pinker, whose book The better angels of our nature was apparently influenced by this movement:

In that extremely influential work Pinker argues that our rational, deliberative modes of evaluation should take precedence over powerful, affective intuitions. But by “rationality” he means specifically “the interchangeability of perspectives and the opportunity the world provides for positive-sum games,” rather than any higher-order philosophical theory. He allows that empathy has played a part in promoting altruism, that “humanitarian reforms are driven in part by an enhanced sensitivity to the experiences of living things and a genuine desire to relieve their suffering.” But nevertheless our “ultimate goal should be policies and norms that become second nature and render empathy unnecessary.”

And here’s where I see another problem. Pinker is here criticised for not subscribing to any ‘higher-order philosophical theory’, but Shaw doesn’t attempt to outline or give examples of such higher-order theories, though she does refer to empathy – an important factor, but one that doesn’t obviously emerge from philosophy.

Jacinta: Right, and we’ve already referred to utilitarianism and its problems. This reminds me that years ago  I read a sort of primer on ethics, I think it was called Moral Philosophy, in which the author devoted chapters to utilitarianism, Kantianism, rights theory and other ethical approaches. In the final chapter he presented his own preferred approach, a sort of neo-Aristotelianism. I was intrigued that he felt we hadn’t made much progress in philosophical ethics in almost 2,500 years.

Canto: Well, his may be a minority view, but it’s doubtful that our changing laws derive from philosophical work on normative ethics, though this may have had an influence. I do think, with Haidt, that there’s a great deal of post-hoc rationalisation going on, though I’m reluctant – very reluctant actually – to embrace the relativism of values. And this brings me to the nub of the matter, IMHO. To go back to an old favourite of mine, Hume: ‘reason is and ought only to be the slave of the passions’. A fairly notorious pronouncement, but I take the passions here to be something very basic – the fundamental drives and instincts, largely unconscious, that characterise us as humans…

Jacinta: But doesn’t Hume break his own is-ought rule here? He says that our passions rule our reason, which may or may not be true, but does it follow that they ought to?

Canto: Please don’t complicate matters. Hume also wrote this, in An Enquiry Concerning the Principles of Morals:

In all determinations of morality, this circumstance of public utility is ever principally in view, and wherever disputes arise, either in philosophy or common life, concerning the bounds of duty, the question cannot, by any means, be decided with greater certainty, than by ascertaining, on any side, the true interests of mankind.

So these true interests of mankind…

Jacinta: Hang on, so there he goes again, gaily bounding over his own is-ought barrier, saying that in order to work out what we ought to do we need – pretty well absolutely – to determine our interests, what in fact makes us human, what we actually are.

Canto: Well, precisely…

Jacinta: Or what we have evolved to become, which might amount to the same thing. So we need to study our evolution, our genes and genetic inheritance, our brain and its inheritance, and adaptive growth, and maybe the physics of our bodies…

our old Scottish mate Davey Hume, doyen of skeptics, whose is-ought distinction has been widely misinterpreted, we suspect

our old Scottish mate Davey Hume, doyen of skeptics, whose is-ought distinction has been widely misinterpreted, we suspect

Canto: So we need neurology, and genetics, and palaeontology, and physics and psychology, all of which contribute to an understanding of what we are. Without them, normative ethics would be empty theorising.

Jacinta: So I suppose you’re going to write a rejoinder to this ‘normative insignificance of neurology’ essay? Something like ‘the insignificance of normative ethics without neurology’?

Canto: Ha, well that would require reading Selim Berker’s essay, which I’m not sure about – so many other things to explore. But I should end this discussion by saying a few words about the second half of Shaw’s article – and I’ll pass over many other points she’s made. This section deals with the collusion of some psychologists, practitioners of the above-mentioned ‘positive psychology’, with the CIA and the US Department of Defence in the commission of torture.

Jacinta: And what exactly is this ‘positive psychology’?

Canto: Well, to explain that would require a large digression. Suffice to say for now that it’s about using psychology to make us more resilient, and in some sense ethically superior, or more benign, humans. Shaw dwells on this at some length, but claims that in spite of much rhetoric, these psychologists can only offer what she calls the bare, Hobbesian ethic of avoidance of strife. However, she herself is unable to point to a more robust, or a deeper, ethic. She presumably believes in one, but she doesn’t enlighten us as to what it might be. And this is very striking because the tale of these psychologists’ collusion with the Bush administration  on torture, and the huge financial gain to them in applying ‘learned helplessness’, a theory of Seligman’s, to the application of torture, is truly shocking.

Jacinta: So it would be a question of what, in their make-up, allowed them to engage in such unethical behaviour, and was it the lack of a deep ethical understanding, beyond ‘bare Hobbesianism’?

Canto: Right, and my answer would be that, although two psychologists took up this lucrative offer to ‘serve the state’, there would have been others who refused, and would any of them, on either side, have made their decision on the basis of some rigorous normative ethic?

Jacinta: I’m quite sure I wouldn’t have colluded with that sort of thing for all the terracotta warriors in China, but I’m also sure it wouldn’t have been for deep philosophical reasons. I just have a kind of visceral revulsion for physical violence and bullying as you know, and I wouldn’t be able to live with myself if I’d facilitated the premeditated cruel and unusual punishment of others. I’m not even sure if it’s about empathy, but it’s not a particularly reasoned position.

Canto: Yes, and so the only way to understand why some people are more prone to do unethical things – actions outside of the ever-changing standards of community ethics – might be to look at individual psychology, and neurology, and genetics, which takes us further away from normative ethics than ever.

Jacinta: Yes, and didn’t we read, in Sam Kean’s The tale of the duelling neurosurgeons, about a poor fellow in his mid-fifties who suddenly started engaging in paedophile acts, something he had never showed any signs of before? A brain scan revealed a large tumour pressing on parts of the brain responsible for higher-order decision-making (to put it over-simplistically). When the tumour was removed he returned to ‘normal’, until some time later he regressed to paedophile acts. A further scan showed they didn’t remove all the tumour and it had regrown. After another more successful operation he was cured and never diddled again. But the consequences of his actions for his victims when ‘not himself’ would have required him to be punished, on a consequentialist ethical view, wouldn’t they?

Canto: Very good point. And yet, and yet… can it be true that we’ve barely gone further in our ethics than the Golden Rule, or Aristotle’s mean between extremes?

Jacinta: We’re animals, don’t forget. Okay we’re animals that have managed to detect waves from space that are a tiny fraction of the diameter of a proton, but we’re still not that good at being nice to each other. And the extent to which we’re able to be nice to each other, and follow social norms, that’s a matter of our individual psychology, our neurology, our individual and cultural circumstances, our genes and our epigenetic profile, so much particular stuff that philosophical ethics, with its generalities, can’t easily deal with.

Written by stewart henderson

February 26, 2016 at 8:37 am

no jab no pay starts now

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actually, a fairly unsystematic campaign to protect kids, often from their own parents

Jacinta: I believe the federal government is bringing in new rules penalising parents who choose not to vaccinate their children. Do you know the details, and how do you think the anti-vaccination movement, which is quite strong in Australia, is going to react?

Canto: Well, first I’ll note that when looking up this issue on the net I found a disproportionate number of anti-vaccination or ‘vaccination skeptic’ sites cropping up on Google. It’s very disheartening that the ‘AVN‘, formally deceitfully titled the Australian Vaccination Network, now forced by law to call itself the Australian Vaccination-skeptics Network, comes up first all the time. Other depressing sites that come up include nocompulsoryvaccination and ‘natural society‘. These appear to be US sites promoting the ‘nature is better’ fallacy or some dubious form of libertarianism, and I suppose they have ways of maintaining a high internet profile.

Jacinta: Well, this is the thing, they have a ’cause’ to rally around, whereas the immunologists and doctors who know the science don’t see what the fuss is about, and just assume that everybody respects scientific methods and results. Which is obviously far from the case.

Canto: Well anyway yes the federal government, and the Victorian state government, have created bills to better enforce vaccination, and the Australian government’s measure came into force on January 1. Child care payments and family tax benefit part A supplement will only be paid for children who’ve been immunised or have an approved immunisation exemption.

Jacinta: So, can you get an exemption easily, due to your firm belief that vaccinations cause diabetes, or autism or whatever?

Canto: Only on religious grounds.

Jacinta: Ahh, but can’t the refuseniks claim to be religious, since they have very strong beliefs based on no evidence?

Canto: Ha, well, I’m sure they’ll try. And actually I think it’s going to be difficult for the government to enforce this one.

Jacinta: Why should it be? Surely they have immunisation records through Medicare, it would be easy enough to check.

Canto: And what if the child spent the first few years of life overseas? And what if a parent insists the child was immunised but there’s no record?

Jacinta: Mmmm, I think these are minor difficulties, and I belief it has a support level of over 80%.

Canto: Yes so we’ll have to wait and see what plans the AVN have to try and sabotage it. Other state governments, in Victoria, Queensland and possibly elsewhere, are introducing measures in harmony with this, so it does seem to deal a serious blow to the refuseniks. And of course it’s hoped, or expected, that it’ll bounce the fence-sitters off the fence and so increase community immunity.

Jacinta: And that reminds me, I was reading somewhere about anti-vaccination hotspots. Any info on that?

Canto: Well yes, they’re the places to look to for trouble. The low-down on all that can be found at this slightly unlikely source, Mamamia, an entertainment and lifestyle website – and good on them. It also has a graphic from the Department of Health that reveals the alarming rise in ‘conscientious objectors’ to vaccination in Australia over the last 15 years, from 4000-odd in 1999 to over 36,000 in 2013.

Jacinta: So does it mention anywhere in South Australia?

Canto: Yes, and I’ve noticed that these hotspots are often in quite affluent regions…

Jacinta: Depressing.

Canto: Yes, the Adelaide Hills region, which I would think is generally quite affluent, has one of the highest objection rates, with 86% of children under 5 vaccinated compared with the state average of 91.5%. But then they say that many other areas are under 85%, including Port Adelaide, Holdfast Bay – that’s the Glenelg region, and Playford. So a mix of semi-affluent and relatively disadvantaged regions. Hard to make sense of it, but I think there’s a distinction to made here between the refuseniks and those who just don’t get round to vaccinating their kids.

Jacinta: Right, and that wouldn’t necessarily come out in the data.

Canto: Yes, some are slackers and some are refuseniks.

Jacinta: And some might be fence-sitters who might be spurred into getting their kids vaccinated by this stick approach.

Canto: Yeah we’ll have to wait and see whether the unvaccinated numbers go down over the next few years.

Jacinta: Which makes me wonder, how do they know that those figures you quoted before – some 36,000 – were ‘conscientious objectors’?

Canto: Well they probably don’t for sure, but it’s highly unlikely that those numbers have gone up by almost a factor of 10 in fifteen years due to sheer complacency. I mean, is it plausible that in the last 15 years or so we’ve become 10 times more slack as a nation about our children’s health? No, there’s something much more disturbing going on. Mamamia quotes a Melbourne virologist, who claims that in some pockets of the nation our immunisation rates are lower than South Sudan.

Jacinta: Oh well done. I’m guessing they enforce vaccination in South Sudan, or I might be suffering from the delusion that most African governments are brutal dictatorships. Anyway, what are the biggest or worst hotspots nationally? I’m thinking Nimbin.

Canto: Yes, that area – Nimbin, Byron Bay, Mullumbimby, that whole northern New South Wales coastal area has vaccination rates down between 60% and 70%. Mullumbimby is the town with the highest objection rate in Australia, and the lowest immunisation rate, at under 50%. Steiner schools are popular in this region, unsurprisingly, and they’re openly promoting refusenik behaviour. But there are many other problem regions, such as Queensland’s Gold Coast and Sunshine coast. Noosa on the Sunshine coast also has very high objection rates.

Jacinta: These are quite wealthy areas I suppose. Any idea why this is happening?

Canto: Well, I can only speculate, but I think, with wealthy people, there’s a greater degree of resistance to government measures, obviously in the case of taxation, but also with health matters. They’re rich, they’re healthy, they feel they’re already immune, and that if they just maintain a healthy lifestyle they’ll be fine. Clearly they’re not particularly informed about the benefits of vaccination, or choose to believe those benefits are exaggerated. I suspect that the further we remove ourselves from the bad days of TB, diphtheria, mumps and measles, the more we’ll get this creeping belief that vaccines are over-rated. The positive thing, though, is that we still have some 83% of parents in favour of some kind of punitive measure for those who don’t or won’t vaccinate their kids. But I do suspect that percentage will reduce over time. We humans have short memories and an over-supply of hubris, it seems to me. Or perhaps we’re just a bit over-confident with respect to our survival mechanisms. We’re like teenagers, we rarely listen to our parents – they’re history, after all. We need a few life-blows to counter our cockiness.

Jacinta: Hmmm, grim but probably true. Anyway, the government has acted and that might reduce the number of fence-sitters, even if it polarises the issue a bit more.

Written by stewart henderson

January 3, 2016 at 9:09 am

Traditional Chinese medicine? You must be joking

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bear bile, a TCM that tortures and kills bears and prevents humans from receiving effective treatments - just one of the horrors of TCM

bear bile, a TCM that tortures and kills bears and prevents humans from receiving effective treatments – just one of the horrors of TCM

If we don’t know what’s in them, it’s very difficult to predict the interactions, … that’s obviously of great concern if they are been given to children, or pregnant women, the potential outcomes there are very serious.

Murdoch University biochemist Dr Garth Maker

There’s nothing particularly positive to say about naturopathic treatments generally – some of which (homeopathy, reflexology, iridology, acupuncture and cupping, to name a few) are not so much ‘natural’, whatever that means, as examples of comprehensively failed hypotheses (hardly worthy of the name). But so-called traditional Chinese medicine is on the lowest rung, considering how much damage it has done, not only to humans but to other species that have been horribly exploited in its name. The latest damning finding about what is actually contained in many of these unregulated pills will probably barely create a ripple amongst the anti-science crowd, but nevertheless it needs to get as much publicity as possible. You never know, maybe someone, somewhere will take notice (and we’re fighting a real battle here, because if you go online to find out about TCM, you’ll find the whole internet disturbingly skewed towards the positive). Please, if only for the sake of the children exposed to this crap by ignorant parents, let’s do something about this. It’s an effing outrage.

Written by stewart henderson

December 13, 2015 at 11:36 pm

group think revisited, or how to improve your mind

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Confirmation bias (and the benefits of social reasoning) in a nutshell:

How can you say to your brother, ‘Brother, let me take the speck out of your eye,’ when you yourself fail to see the plank in your own eye? Luke 6: 42 New International Version


The argumentative theory of reason

The recent New Scientist collection, Being Human, includes an essay, ‘The argumentative ape’, by Dan Jones, which is worth reading and contemplating for any teacher involved in encouraging her students to think richly about current ethical or political issues. In my college, NESB students study ‘English for academic purposes’, which involves a lot of basic grammar and vocabulary at the lower levels, and academic presentations and essays at the higher levels. In these ‘discussion’ or ‘argument’ essays and presentations, students are required to examine the pros and cons of some chosen activity or decision, such as the proper driving age, the consumption of GM food, or even whether humanity has benefitted or blighted our planet.

However, there seems to be a contradiction in asking students to write, and be examined on, individually written ‘discussion essays’, when discussions and arguments are group rather than individual activities. More importantly, if we want to improve our students’ understanding of current issues, perhaps we should be placing more emphasis on group discussion than on individual analysis.

This is hardly a new idea. The ancient Athenians, founders of democracy – decision-making by the people – built their city around the agora, a gathering place for public talk and argument. This design was quite deliberate, as all Athenian citizens were required to contribute to discussions from which civic decisions were made.

‘The argumentative ape’, however, provides contemporary evidence about the evolutionary importance of argument in human society. It describes a thesis put forward by European researchers Hugo Mercier and Dan Sperber, that human reason evolved not so much to assist us in more clearly understanding our world, but to argue, to persuade, to convince others of our position, our right-ness. So, it evolved socially. And there appears to be some evidence for the more general ‘social brain’ hypothesis, in that a clear correlation has been found between the number of individuals in a primate group and the average brain size of that particular species.

Now one essential problem here should be obvious, as it was to Socrates in his battle with the sophists. The most persuasive arguments aren’t necessarily the best. So it’s natural that along with persuasiveness, skepticism would have developed, as humans sought to evaluate competing arguments.

Through scepticism we’ve identified many types of fallacious reasoning, and ways we have of convincing ourselves in the process of trying to convince others. Confirmation bias, or motivated reasoning, probably tops this list, as it is extremely pervasive if not universal. As Mercier points out, using confirmation bias seems counter-productive if you wish to arrive at correct results, for example in scientific research, but it can be highly effective in argument, as your bias commits you to garnering a multitude of arguments for your position while ignoring, and thus rendering insignificant, all arguments against. If we accept an argumentative theory of the evolution of reason, then, we will see confirmation bias not as a flaw, but as a device to strengthen our own arguments, and the ability to detect such biases would in turn be a device to undo or diminish the arguments of others.

how individual reasoning is affected by the larger group

Experimental psychologists have found many ways in which our reasoning can be affected or manipulated. Take, for example, the framing effect. It has been found, and regularly confirmed, that how the same problem is worded will affect our decision. Jones presents the scenario, used by psychologists, of a small village of 600 people threatened by a deadly disease. In scenario one, if Plan A is adopted, exactly 200 people will survive. If plan B is adopted, there will be a 1 in 3 chance that all will survive, and a 2 in 3 chance that none will survive. When this scenario is presented to subjects, the majority invariably choose Plan A. However when, in scenario two, Plan A is framed with the slight difference that exactly 400 people will die (with no change to Plan B), this is enough for the majority to flip over to Plan B. This consistent result has been explained in terms of ‘loss aversion’ – we prefer to avoid the explicit loss of life as expressed in the change to Plan A in scenario two. Significantly though for the argumentative ape hypothesis, this loss aversion bias is strengthened when we have to justify our decision to a larger group. We have a ready-made justification as expressed in the framing. It’s probable that we always have in mind what the larger group, or ‘society’ will think of our decision, but when this need to justify ourselves is made explicit, the ready rationalisation is more likely to be adopted.

Other effects of apparently faulty reasoning, such as the attraction effect and the sunk-cost fallacy, have been detected in psychological studies, and all have been shown to be enhanced when there is an explicit need for justification. The ‘argumentative’ thesis claims that we tend to choose the most easily justified option rather than what might be best.

Confirmation bias for me, scepticism towards you, and how it pans out

While this may seem a pessimistic outlook on our use of reason, the counterbalance lies in our ability, from clear evolutionary need, to identify and so counter the faulty arguments of others. This pattern follows a familiar evolutionary trajectory, in which a predator evolves a means to capture its prey, leading the prey to develop a defence mechanism to protect itself against the predator. Scepticism helps us to avoid being sucked in and ‘devoured’.

The result for group reasoning is that bias and the scepticism can balance each other out, leading to a greater recognition of the weaknesses in our own opinions and the strengths in those of others. And experimental evidence backs up this result. To quote from Jones’ article:

In one convincing study, psychologists David Moshman and Molly Geil at the University of Nebraska-Lincoln looked at performance in the Wason selection test – a simple card game based on logical deduction. When thinking about this task on their own, less than 10 per cent of people got the right answer. When groups of 5 or 6 people tackled it, however, 75 per cent of the groups eventually succeeded. Crucially for the argumentative theory, this was not simply down to smart people imposing the correct answer on the rest of the group: even groups whose members had all previously failed the test were able to come to the correct solution by formulating ideas and revising them in light of criticism (Thinking and Reasoning, vol 4, p 231).

He also points to research indicating that groups are more creative in their thinking than individuals (see sources below).

Implications for teaching, or how to best facilitate the best group thinking

Evidence from a series of studies by Anita Williams Woolley of Carnegie Mellon University in Pennsylvania suggests that a group’s individual skills are not the best predictor of the group’s overall performance in problem-solving. These studies were designed to measure the ‘collective intelligence’ of the group, in something like the manner of IQ tests for individuals. She found that those groups who scored highest were the most inclusive, allowing maximal participation within the group. Sensitivity to the moods and feelings of others helped groups to score highly, and the best groups were those with the greater number of female members, presumably because females have a greater social sensitivity.

Group thinking can, of course, backfire. Groupthink in fact has long been seen negatively, but this is because people with the same cognitive biases often congregate together, as with political parties and religious organisations, or gravitate towards similar professions, such as the police or the military. In such groupings it’s often the case that the group moves collectively to quite extreme positions. Where group thinking would be expected to work most effectively is precisely in a college for NESB students from different cultures and backgrounds, in which individuals are challenged by widely different but (hopefully!) cogent opinions.

As educators, we need to consider the best outcomes for our students. Clearly there is pressure, in an individualised results-based system, to push for individual skill in argumentation, with the resultant high test scores. However, the evidence for group interaction in improving students’ understanding of the many issues focused on in essays and seminars at the higher levels is clear. Of course the situation is complicated by the fact that many students at EAP2 and EAP3 levels still don’t have the  grammatical and lexical skills to present cogent arguments in English, so that it’s often hard to determine whether their difficulties are those of reasoning or of language. Even so, I believe it is vital to take advantage of the cultural diversity of students’ experience and knowledge (even within identical language groups) to encourage interaction that will challenge biases and create awareness of a variety of perspectives. Hopefully this will enliven their thinking both within the college and in their studies beyond Eynesbury.


Some sources are found in the links. Here are others.

D Sperber and H Mercier,”Why do humans reason? Arguments for an argumentative theory”, Behavioural and brain sciences: Published online March 2011. Mercer elaborates on the theory very interestingly in a video on this website

Williams Woolley, Anita, ‘Collective intelligence in human groups’, April 2012: Center for Collective Intelligence:

D Moshman & M Geil, 1998 ‘Collaborative reasoning: evidence for collective rationality’. Thinking and reasoning V4 issue 3:

Written by stewart henderson

November 26, 2015 at 6:57 am

Is Malcolm Turnbull a libertarian?

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Jacinta: Okay so here’s a topical topic. I was listening with baited breath – I can do that, I’m a multi-tasker – to Malcolm Turnbull’s post-election speech the other day, and along with the whole nation I heard him extoll three ‘roolly good things’, in his estimation. The holy trinity – freedom, the individual and the market. Did y’all hear that? And I thought, Jeez, the libertarians among us will be doing cartwheels right now. And I further thought ‘hang on a minute Malcolm, turn that bull around’.

Canto: I see, so you prefer slavery, group-think and state control?

Jacinta: Ah very good, but let’s prise ourselves out of the straightjacket of ideology and slip into something more comfortable, like reality. Of course freedom’s a good thing, but of course it has its limits. And of course individuals are great, but as any mathematician will tell you, all individuals are members of a set, that’s actually what makes them individuals, and the market..

Canto: That’s not a very good analogy, I don’t think – that one about individuals.

Jacinta: That wasn’t an analogy.

Canto: Well… maybe, but bringing maths into it isn’t very helpful.

Jacinta: Okay. Okay, let me focus on the individual thing, because that’s probably my biggest gripe – it all flows from a misconception of the individual, IMHO.

Canto: What flows?

Jacinta: The horrors of libertarianism. I’ve been bottling this up for years, now I’m going to let it all seethe out. And it just so happens that ‘All hail freedom, the individual and the mighty market’ is essentially the libertarian mantra. Of course I don’t take Malcolm’s mellifluencies too seriously, but libertarianism really shits me.

Canto: But really – politics? Can’t we talk about water on Mars? Or Homo naledi?

Jacinta: Well, there is world enough, and time…

Canto: Bullshit.

Jacinta: Ok I’ll try to be the soul of wit. Libertarians – and I know they come in all shapes, sizes and political colours – tend to believe in small government, minimal regulation and the invisible, wonderfully shaping and fixing hand of the market. I got my first dose of libertarianism years ago when I read – or tried to read – Anarchy, State and Utopiaby the American philosopher Robert Nozick. I could barely comprehend it, but I could see it was underpinned by a sacrosanct notion of rights, particularly the rights of the individual. It was also, I thought, an overly rational analysis of how individuals might aggregate. Or rather, that’s how I’ve come to think of it since. I had no idea what to think of it at the time.


Canto: So how do you think individuals aggregate?

Jacinta: No no what I think doesn’t matter, it’s more about what history and psychology and sociology tells us. And they tell us about families and extended families and kinship groups and trade affiliations, becoming ever more extended and convoluted as societies grow. And all this without any concept of rights.

Canto: Okay I think I see where you’re coming from. You think the individual shouldn’t be seen as the central human unit, or political unit, you’re wanting to emphasise social connections.

Jacinta: Of course! We didn’t get where we are now, the top predators of the biosphere for better or worse…

Canto: The fat controllers of the planet…

Jacinta: We didn’t get to this situation as individuals, we got here because we’re the most socially-oriented mammals around. Our language, our technology, our superior brainpower, these are all socially constructed. And our systems of government are just ways of organising and trying to get the best out of this dynamic, interactive, co-operative and competitive society.

Canto: So there are legitimately diverse views about the role of government. So what’s wrong with that? Libertarians just happen to lean towards the individualist, unregulated, small-government side.

Jacinta: Well, as I’ve said, I’m not so much interested in opinions as in what actually works to create the most effective society…

Canto: You’re trying to be scientific, but the question of what makes for an effective society will have different answers, not based on science. Some will say an effective society is one that looks after its minorities and its disadvantaged, others will say that diversity and dynamism is key, and this means inevitably that there will be winners and losers. How can there be an objective, scientific definition of an effective society?

Jacinta: Okay, I concede your point that there are a range of legitimate views on this, but I would be guided by what works, and that would reduce the range of legitimacy. Extreme libertarianism – of the ‘there is no society, only individuals’ kind – seems to me to be paradoxically an outcome of the success of certain societies in educating and empowering their members, so that they start to fantasise about themselves as ‘self-made’ and owing nothing to anyone. It’s delusional and would result in scrapping all history has taught us about the communities of language and shared knowledge and values which have shaped us. It’s an ahistorical ideology which has never been instantiated anywhere. Not to mention its arrogant (and ultimately self-defeating) selfishness. Of course the other extreme is also unworkable, that of communism with an equal share of communal goods, which would stifle innovation and diversity and would have to be imposed from above.

wtf? Most people don't give a tinker's toss about the state when they act. But they do think about the consequences for others

wtf? Most people don’t give a tinker’s toss about the state when they act. But they do think about the consequences for others

Canto: Which would be self-contradictory because in communism, there is no ‘above’, presumably absolute equality is just meant to happen naturally…

Jacinta: There’s no perfect or perfectly fair society, just some are fairer than others, and it’s an endless balancing act, it seems to me, between encouraging the freedom to develop ideas and ‘get ahead’, and protecting others from being exploited and done down. So to me it’s a matter of pragmatism and endless adjustment rather than gung-ho ideology. Individuals are pretty well infinitely complex so you would expect society to multiply that complexity to to a new level of infinity.

Canto: But I notice that many libertarians tend to avoid going on about ‘society’, they prefer to focus their ire on ‘the state’, as if it’s the enemy of society.

Jacinta: Oh yes, good point, the rhetoric goes that the state is this abstract, inhuman monster that steals our money, stifles our initiative and makes a mess of everything it touches. Insofar as it consists of people, it consists of really dumb or power-mad types who haven’t seen the light and just don’t realise that society functions better either without the state or with a minimalist one. They’ve never been able to point to any evidence to support their claims though. Essentially, the libertarian ‘state’ has been trialled in the real world even less than the communist state, its polar opposite, has been.

Canto: So how is it supposed to work?

Jacinta: Well, clearly there are libertarians of many different types and degrees who would argue endlessly about that. But many of them seem to think it would grow ‘organically’ through adherence to certain basic principles, one of which has to do with the primacy of private property, though I’m not sure how to articulate it. Another is that no law or imposition should be applied that interferes with an individual’s liberty, the idea being I think, that you’re free to do what you like as long as it doesn’t interfere with everybody else’s right to do what he or she likes, which when you think about it is a recipe for disaster, because who decides between competing claims – for example my right to enjoy the peace and quiet of my own residence versus my neighbour’s right to play shite music all night with the volume up to eleven?

Canto: Aww, is that neighbour still bothering you Jass?

Jacinta: Fuck off. Actually what really bothers me is the obsession with private property and ownership. Coming from a pretty impoverished background, I was always more fond of the ‘property is theft’ mantra. And that reminds me of a story from my youth. I was living in a share-house very close to the spacious grounds of Saint Peter’s College, the biggest and most exclusive private school in South Australia. It must’ve been school holiday time, and we decided to take our racquets and balls and have a hit around on one of their tennis courts. There was no fence or anything, we just walked in and started playing. There was no net either, so it wasn’t a particularly serious hit-out, but we were absorbed enough not to notice a fellow scurrying across the greensward to tick us off. The look of outrage on the face of this fellow was unforgettable, it was as if he’d caught us pissing on the altar…

Canto: Which is exactly what you were doing mate.

Jacinta: His get-up was unforgettable too, he had this bright orange cravat, and sort of pantaloons with braces as I remember…

Canto: You’ve forgotten the candy-striped jacket and the Old Boys’ cap…

Jacinta: No, it was too hot for that. Anyway, I remember his words, more or less. ‘What are you doing here? Don’t you know this is private property!!’

Canto: Ah yes, a defining moment in the Great Australian Class War. So you made mince-meat out of him with your graphite, carbon-fibre and kevlar weaponry?

Jacinta: Well, we were just teenagers. I remember we stood our ground for a while, more out of shock than anything. So he went on haranguing us about our outrageous behaviour and threatening to call the police, so we wandered off. But I was so infuriated when I realised what was happening. I wish I’d confronted the guy, and I ran though imaginary narratives in my head many times afterwards. It was a defining moment for me, actually, it crystallised for me my attitude to private property…

Canto: Which is?

Jacinta: Well, it’s never been very important to me – I mean, as part of his harangue, this guy said something like ‘how would you like it if someone came into your garden and started..’, and my honest answer would’ve been that it wouldn’t have bothered me, certainly nothing like the way it bothered him. And the comparison was odorous anyway, I didn’t own any spacious grounds, I wasn’t born into that world. The way this guy mentioned private property, as if it was his Lord and Master, to be protected and fought for with life and limb, it just sickened me.

Canto: You were outraged?

Jacinta: Yeah, I suppose our intellectual positions are just post-hoc rationalisations of some basic feelings.

Canto: Reason is but the slave of the passions and all that. Anyway, I’m keen to get on to some of those more interesting topics. So let’s get back to the original question – is Malcolm Turnbull a libertarian?

Jacinta: Well the correct answer is that he didn’t say enough, in that first Prime Ministerial speech, for us to make that inference. He believes strongly in freedom. So do I, of course. He believes in the individual. So do I, and I believe individual expression and effort should be nurtured. He believes in the market or markets. I most certainly do too, as sources of exchange, cross-fertilisation, community and growth. The devil or delight is in the detail. I mean, I’ve called his statement a libertarian mantra, which it is, but it’s also classical liberalism. In the end, though, we need to judge governments on their actions, not their words. We’ll have to wait and see.

Written by stewart henderson

October 4, 2015 at 10:06 am