Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Friday, 22 September 2017

EASAC statement on Homeopathy


Here, dated September 2017:

http://www.easac.eu/fileadmin/PDF_s/reports_statements/EASAC_Homepathy_statement_web_final.pdf
EASAC – the European Academies' Science Advisory Council – is formed by the national science academies of the EU Member States to enable them to collaborate with each other in giving advice to European policy-makers. It thus provides a means for the collective voice of European science to be heard.
Extracts:
EASAC, the European Academies’ Science Advisory Council, is publishing this Statement to build on recent work by its member academies to reinforce criticism of the health and scientific claims made for homeopathic products. The analysis and conclusions are based on the excellent science-based assessments already published by authoritative and impartial bodies. The fundamental importance of allowing and supporting consumer choice requires that consumers and patients are supplied with evidence-based, accurate and clear information. It is, therefore, essential to implement a standardised, knowledge-based regulatory framework to cover product efficacy, safety and quality, and accurate advertising practices, across the European Union (EU).
Our Statement examines the following issues:
Scientific mechanisms of action—where we conclude that the claims for homeopathy are implausible and inconsistent with established scientific concepts.
Clinical efficacy—we acknowledge that a placebo effect may appear in individual patients but we agree with previous extensive evaluations concluding that there are no known diseases for which there is robust, reproducible evidence that homeopathy is effective beyond the placebo effect. There are related concerns for patient-informed consent and for safety, the latter associated with poor quality control in preparing homeopathic remedies.
Promotion of homeopathy—we note that this may pose significant harm to the patient if incurring delay in seeking evidence-based medical care and that there is a more general risk of undermining public confidence in the nature and value of scientific evidence.
Veterinary practice—we conclude similarly that there is no rigorous evidence to substantiate the use of homeopathy in veterinary medicine and it is particularly worrying when such products are used in preference to evidence-based medicinal products to treat livestock infections.
We make the following recommendations.
1. There should be consistent regulatory requirements to demonstrate efficacy, safety and quality of all products for human and veterinary medicine, to be based on verifiable and objective evidence, commensurate with the nature of the claims being made. In the absence of this evidence, a product should be neither approvable nor registrable by national regulatory agencies for the designation medicinal product.
2. Evidence-based public health systems should not reimburse homeopathic products and practices unless they are demonstrated to be efficacious and safe by rigorous testing.
3. The composition of homeopathic remedies should be labelled in a similar way to other health products available: that is, there should be an accurate, clear and simple description of the ingredients and their amounts present in the formulation.
4. Advertising and marketing of homeopathic products and services must conform to established standards of accuracy and clarity. Promotional claims for efficacy, safety and quality should not be made without demonstrable and reproducible evidence.

Our purpose is not to seek the prohibition of homeopathic products, and we recognise the fundamental importance of allowing and supporting consumer choice. Rather, we aim to explore the policy dimensions for ensuring informed patient choice with the emphasis on ‘appropriately informed’, and for achieving a standardised knowledge-based, robust regulatory framework and sound advertising practices across the EU, which can apply equitably to all medicinal products, whatever their origins and whatever their mechanisms.

The continuing popularity of homeopathic products worldwide might be taken as demonstrating an unfortunate point – that scientific evidence is not always relevant to the policy maker nor understood by the public-at-large. In this eventuality, there might be only limited room for optimism that EASAC and others – in reiterating that homeopathic products and practices lack proof of efficacy– could influence the present situation. 

Any claimed efficacy of homeopathic products in clinical use can be explained by the placebo effect or attributed to poor study design, random variation, regression towards the mean, or publication bias. Among these, the placebo effect can be of value to the patient but there are no known diseases for which there is robust, reproducible evidence that homeopathy is effective beyond the placebo effect.
• Homeopathy raises issues of concern for patient-informed consent if health practitioners recommend products that they know are biologically ineffective.
• There are also potential safety concerns for homeopathic preparations because of poorly monitored production methods, and these require greater attention to quality control and assessment of adverse effects.
• The scientific claims made for homeopathy are implausible and inconsistent with established concepts from chemistry and physics. In particular, the memory effects of water are too short-range and transient (occurring within the nanometre and nanosecond range) to account for any claimed efficacy.
• The promotion and use of homeopathic products risks significant harms. First, by incurring delay in the patient seeking appropriate, evidence-based, medical attention or, even worse, deterring the patient from ever doing so. Secondly, by generally undermining patient and public confidence in the nature and value of scientific evidence for decision making in health care and other societal priorities.
• In the absence of similarly robust evidence for homeopathic products in veterinary medicine, it is an error to require organic farmers to use these products in preference to prevention or treatment for which there is demonstrable efficacy and an established mode of action.


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Sunday, 31 July 2016

Philipse on Theism - Revealed or Natural Theology?


In God in the Age of Science?: A Critique of Religious Reason, Herman Philipse examines what he considers to be the best arguments for God today. As we saw in his preface, he plans to examine Richard Swinburne's arguments for God.

In Chapter 1, though, he wants to establish 'that for religious believers, natural theology has an epistemological priority over a revelation and revelation theology' (p.3). Natural theology is the approach that Swinburne takes.

Philipse draws the common distinction between natural theology and revealed theology. Natural theology can be examined through evidence available to everyone, non-believers included. As the SEP explains, it 'aims to adhere to the same standards of rational investigation as other philosophical and scientific enterprises, and is subject to the same methods of evaluation and critique'. Philipse defines revealed theology as 'the endeavour by believers to interpret and systematize the contents of texts that are considered divine revelations, such as the Bible, the Koran, the Vedas, or the Book of Mormon' (p.3).

Richard Swinburne himself points out that there is another notion that is now considered popular, particularly among Protestants:
Religion, they will tell us, is a matter not of affirming creeds, but of a personal relationship to God. The religious man may tell us that he knows that he at any rate has such a relationship, and that he knows what he means when he says that he has this relationship; on these points he ‘cannot be mistaken’. (The Coherence of Theism, p.6)
Philipse examines perhaps the most well-known defence of this sort of position, Alvin Plantinga's Reformed Objection, in Chapters 3 and 4.

Philipse notes that most believers come to their belief because they are brought up in a religious tradition; the truths of it are a given. But these days we are exposed to scientific knowledge that often contradicts such received opinions, and are also made aware of the full diversity of other received opinions. Consequently, it is necessary to appeal to the arguments of natural theology if one aims to be rational and reasonable.

Establishing the epistemological priority of natural theology is also important so that non-believers can engage on a level playing field with believers; that is, they should both be approaching the subject using the same tools to analyse and justify their beliefs. This is not to exclude the possibility that divine revelation occurs and people may know something about God apart from natural theology. But it is to suggest that when we justify our beliefs in public discourse, we do not need to appeal to that divine revelation, and, in fact, the knowledge derived from natural theology is better in some way than other methods. For example, someone may know that they haven't murdered someone, but if accused of murder they must defend them-self in court by appealing to methods that everyone can access; simply appealing to their inner knowledge that they are innocent will be insufficient.

Philipse gives 6 reasons for thinking that natural theology has epistemological priority over revelation, which I summarise as:

(A) There are contradictions within revealed texts.
(B) Many revelations are shown by science to be untrue.
(C) Many revelations are based on sources and cultures that are not considered divinely inspired, leading to...
(D) Revelations contain nothing that could not have been established without divine assistance.
(E) Revelations contain moral norms which many of us now find unacceptable.
(F) The revelations of other religions provide a potential defeater for a believer in divine revelation.

I would endorse this list, although in my experience (A) is pretty hard to categorically establish. With a narrative like the Bible the language is ambiguous enough to prevent the establishment of a formal contradiction. Just consider Philipse's first example; the supposed contradiction between Paul describing Jesus' resurrection as spiritual rather than corporeal, as maintained by subsequent Christian tradition:
Paul seems to deny that Jesus was resurrected with his earthly or physical body, arguing that he was raised with a new, spiritual and heavenly body (sooma pneumatikon), since ‘flesh and blood cannot inherit the kingdom of God’. (p.5)
 Paul's words 'sooma pneumatikon' and 'flesh and blood' allows for multiple interpretations; see this discussion by William Lane Craig, which includes this quote from Robert Gundry:
The soma denotes the physical body, roughly synonymous with 'flesh' in the neutral sense. It forms that part of man in and through which he lives and acts in the world. It becomes the base of operations for sin in the unbeliever, for the Holy Spirit in the believer.
And 'flesh and blood' is considered synonymous with 'frail human nature'! Craig concludes that 'we have seen that Paul's evidence serves to confirm the gospels' narratives of Jesus's bodily resurrection'. So clearly he sees no contradiction here, and one might expect similar analysis from apologists on other claimed contradictions.

Generally, though, I think the accumulation of Philipse's reasons gives us good reason to doubt revelation. To counter this general conclusion, I think I would point to the vital role that testimony plays in our knowledge creation, and that biblical revelation cannot be dismissed any more than can be the many non-biblical revelations that are handed down to us. For example, we have established a sophisticated education system which pre-supposes the validity of handing down common knowledge, mostly documented in textbooks; we don't expect anyone to literally support all these 'revealed' truths.

I think, however, that we should have to justify this knowledge if it turned out that around the world we were teaching different truths from radically different textbooks. The project of science has been to universalise knowledge, so that textbooks converge. If natural theology were any better than revealed theology, one might expect it to achieve a greater convergence too. I think that, in the sense that the conclusions of natural theology are more modest than those of revealed, perhaps it does. A discussion for another time, maybe.

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Sunday, 22 May 2016

Philipse on Theism - Preface


In God in the Age of Science?: A Critique of Religious Reason, Herman Philipse examines what he considers to be the best arguments for God today.

In the preface he notes that the arguments produced in analytic philosophy of religion in the last fifty years are worthy of consideration. His reasons for addressing religion are:

  1. The world's population is growing, and the demographics are against the secularist. The non-theist minority is getting smaller and smaller, in global terms.
  2. Globalisation means that cultures are mixing more, and this brings incompatible beliefs together more. The cognitive dissonance this produces causes more religious conflicts than we have seen in the past.

He also sets out his approach; he will be considering beliefs, not rituals; he doesn't want to be accused by believers of not attacking the best cases for theistic belief, so he will consider some of the arguments of D. Z. Phillips and Alvin Plantinga. He will spend most time, however, looking at the arguments for 'bare theism' by Richard Swinburne. This is because:

  1. The monotheism that Swinburne defends is common to the three great Judaeo-Christian religions.
  2. Swinburne's strategy seems the most promising to Philipse, since Swinburne pursues a natural theological approach to the question (compared with, for example, the foundationalist approach of Plantinga). As Philipse puts it, 'If he exists, that god is a divine person with many kinds of causal powers, whose existence can best be argued for on the basis of his alleged empirically detectable doings' (p.xiii).

Swinburne eschews a proof of God, but considers his existence highly probable.

Philipse notes that many religious beliefs have been refuted by modern science, such as origin of Earth stories, which means the 'intellectually responsible believer' cannot rely solely on scripture. For the believer, three interlocking dilemmas, he says, arise:

  1. Between (a) cognitive and (b) non-cognitive interpretations of religious beliefs. For example, does 'God exists' amount to a proposition that can be assessed for truth or falsity, or not? For an interesting discussion of non-cognitive approaches (often called Wittgensteinian), see this post by Stephen Law.
  2. If (a) is chosen, then between (c) evidential/rational support for beliefs, and (d) a non-evidential/rational approach. Under (d), Philipse will consider what he thinks is the most promising approach, offered by Plantinga, of a basic warrant for religious belief.
  3. If (c) is chosen, then between (e) following a method of gathering evidence and reasons that is 'quite unlike the methods used by scientists and scholars when they investigate a factual hypothesis of existence' (p.xv) and (f) following a method like the scientific methodology.
Philipse thinks that Swinburne offers the most sophisticated solution to dilemma 3 above, and, given the title of his book, this seems to be the best place to consider religious belief 'in the age of science'.

Part 1
In Chapter 1 he argues that religious faith can only be grounded by natural theology (that is, on the basis of natural facts).

In Chapter 2  he summarises the history of natural theology.

In Chapters 3 and 4 he addresses Plantinga's 'reformed objection' to natural theology.

In Chapter 5 he investigates the type of rationality in which natural theology should engage.

In Chapter 6 he considers if religious faith can be refuted, or not.

Part 2
Chapter 7 explores the problems that analogical language introduces for the religious believer.

Chapter 8 examines the properties of the putative monotheistic god.

In Chapter 9 considers the predictive power of the god hypothesis.

In Chapter 10, he sees if theism has predictive power, can it avoid being refuted?

Part 3
Chapter 11 examines the problems that face a Bayesian like Swinburne.

Chapters 12 to 14 consider the accumulative probabilistic arguments for theism.

In Chapter 15 he assesses the argument from religious experience.

The Conclusion then attempts, based on what has been discussed, to answer the question 'which view concerning religious matters has the best credentials: theism, agnosticism, some version of atheism, or perhaps a polytheistic creed?' (p.xvi).



What I think is excellent about the book is that, like a bus driver late for his dinner, Philipse relentlessly drives the reader towards a particular destination. This destination is atheistic, of course, as might be expected (he makes no bones about arguing from this viewpoint). This is probably a weakness too, since I'm sure many a theist reader will insist on stopping the bus and heading off down another road. For example, Jim Slegle in his review of the book accuses Philipse of not just adopting an atheistic approach, but a scientistic one, and of 'taking the unreflective, knee-jerk reaction to religious claims, ‘informed’ by the biases and urban myths of contemporary culture'. This seems an uncharitable interpretation to me, especially considering that Philipse is quite open about the project of assessing god based on modern science, which approach surely Swinburne and many theists would concur, to a degree?

More reasonably, Father Andrew Pinsent suggests that in discrediting the methods of theology Philipse is in danger of discrediting the sciences of more complex phenomena, such as biology and zoology, and the humanities in general. Which would include philosophy and presumably Philipse's own book too! Well, perhaps, and I know of a few atheists who would agree that philosophy should be jettisoned too, but I still think that rational analysis of concepts allied with an acknowledgement of the power of science can yield results, even if it struggles to be falsifiable (not the defining criterion of science, in my opinion). 

Pinsent concludes that Philipse attempts too much, and that may be a valid criticism. I found his reasons for the tight focus mostly convincing, so the book should still give theists pause to consider carefully the route they have followed in the past, and the one they follow in the future.




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Wednesday, 27 June 2012

US Court says: "This is how science works"


The NCSE have reported that:
A federal court rejected a claim that the evidence for climate change is too uncertain for the United States government to act on it.
This is good news for science, because the judges have supported regulators who defer to scientific authority when implementing policy. The US Environmental Protection Agency had ruled, based on climate science studies collated by the IPCC and other authorities, that the Clean Air Act required Federal Government to impose limits once it determined emissions were harmful. Presumably petitioners wanted to cast doubt on the link between climate changes and emissions, so that, if harmful environmental changes were detected, this would not result in limits being placed on their operations.

A key paragraph in the judgement is this:

State and Industry Petitioners assert that EPA improperly “delegated” its judgment to the IPCC, USGCRP, and NRC by relying on these assessments of climate-change science. See U.S. Telecom Ass’n v. FCC, 359 F.3d 554, 566 (D.C. Cir. 2004). This argument is little more than a semantic trick. EPA did not delegate, explicitly or otherwise, any decision-making to any of those entities. EPA simply did here what it and other decision makers often must do to make a science-based judgment: it sought out and reviewed existing scientific evidence to determine whether a particular finding was warranted. It makes no difference that much of the scientific evidence in large part consisted of “syntheses” of individual studies and research. Even individual studies and research papers often synthesize past work in an area and then build upon it. This is how science works. EPA is not required to re-prove the existence of the atom every time it approaches a scientific question.
This is not to say that the science is right, but it is to say that deferring to the appropriate scientific authority is right. If the petitioners want to call this a judgement 'delegated', then fine; but it's the right way to conduct public policy. Of course 'delegated' suggests that the EPA simply washed its hands of responsibility for the science, but without reproving the existence of the atom, there is still much that needs to be done, and can be done:
Moreover, it appears from the record that EPA used the assessment reports not as substitutes for its own judgment but as evidence upon which it relied to make that judgment. EPA evaluated the processes used to develop the various assessment reports, reviewed their contents, and considered the depth of the scientific consensus the reports represented. Based on these evaluations, EPA determined the assessments represented the best source material to use in deciding whether greenhouse gas emissions may be reasonably anticipated to endanger public health or welfare. Endangerment Finding, 74 Fed. Reg. at 66,510–11. It then reviewed those reports along with comments relevant to the scientific considerations involved to determine whether the evidence warranted an endangerment finding for greenhouse gases as it was required to do under the Supreme Court’s mandate in Massachusetts v. EPA.
The very act of relying on the science can be, and should be, approached in a scientific manner. A sensible government agency will gauge the level of confidence it can take from the nature of the evidence and the outcome of studies and meta-studies, without re-doing those studies themselves. As the judgement says:

Based on this scientific record, EPA made the linchpin finding: in its judgment, the “root cause” of the recently observed climate change is “very likely” the observed increase in anthropogenic greenhouse gas emissions. Endangerment Finding, 74 Fed. Reg. at 66,518. EPA found support for this finding in three lines of evidence. First, it drew upon our “basic physical understanding” of the impacts of various natural and manmade changes on the climate system. For instance, EPA relied on evidence that the past half-century of warming has occurred at a time when natural forces such as solar and volcanic activity likely would have produced cooling. Endangerment Finding, Response to Comments (RTC) Vol. 3, at 20. Other evidence supports EPA’s conclusion that the observed warming pattern—warming of the bottommost layer of the atmosphere and cooling immediately above it—is consistent with greenhouse-gas causation.
EPA further relied upon evidence of historical estimates of past climate change, supporting EPA’s conclusion that global temperatures over the last half-century are unusual. Endangerment Finding, 74 Fed. Reg. at 66,518. Scientific studies upon which EPA relied place high confidence in the assertion that global mean surface temperatures over the last few decades are higher than at any time in the last four centuries. Technical Support Document for the Endangerment Finding (TSD), at 31. These studies also show, albeit with significant uncertainty, that temperatures at many individual locations were higher over the last twenty-five years than during any period of comparable length since 900 A.D.
For its third line of evidence that anthropogenic emissions of greenhouse gases spurred the perceived warming trend, EPA turned to computer-based climate-model simulations. Scientists have used global climate models built on basic principles of physics and scientific knowledge about the climate to try to simulate the recent climate change. These models have only been able to replicate the observed warming by including anthropogenic emissions of greenhouse gases in the simulations. Endangerment Finding, 74 Fed. Reg. at 66,523.

A cautionary note, however; Mitt Romney's plan, according to his website, is to "Amend Clean Air Act to exclude carbon dioxide from its purview", which would be an odd thing to do; like excluding smoke from the Clean Air Act. If he was successful, this would render this judgement irrelevant, and no limits based on the Clean Air Act could be placed on industry in the US to curb climate change.

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Wednesday, 6 October 2010

Theo-Science

Livre DraperImage via Wikipedia



The criteria for the £1,000,000 Templeton Prize are laid out as:
The qualities sought in a Templeton Prize nominee include creativity and innovation, rigor and impact. The judges seek, above all, a substantial record of achievement that highlights or exemplifies one of the various ways in which human beings express their yearning for spiritual progress. Consideration is given to a nominee's work as a whole, not just during the year prior to selection. Nominations are especially encouraged in the fields of:

Research in the human sciences, life sciences, and physical sciences.
Scholarship in philosophy, theology, and other areas of the humanities.
Practice, including religious leadership, the creation of organizations that edify and inspire, and the development of new schools of thought.
Commentary and journalism on matters of religion, virtue, character formation, and the flourishing of the human spirit.

So, anyone who writes about science and religion could receive a £1,000,000 prize. Quite an incentive. What impact would that have? I wonder.

Science and religion have fundamentals at odds with each other. Science attempts to draw models of the world based on the best evidence that human methodology can uncover. In principle it is contingent, and never a complete explanation, since it's always open to variation based on new evidence. Religion settles arbitrarily on some preconceptions, vows never to examine those and proceeds to draw inferences about reality based on those preconceptions. In principle it is not contingent but a complete explanation; no evidence could gainsay its preconceptions.

Much has been written about their compatibility, including by me, which, considering the above, is surprising. It's understood that *people* can be scientific and religious, happily, but that's not the same. People can be adulterous whilst thinking it's wrong to be adulterous too. People can hold contradictory positions; it's a 'feature' of our thinking. But it's trivially true that science and religion contradict each other as world views at the above fundamental level. A test of someone's theism would be to ask them if they would revise their beliefs if evidence came in to shake their preconceptions; if they say they would revise their beliefs, they aren't really theistic, but scientific. If they say no, they wouldn't, then Don't Pass Go, go Straight to Jail; they're not scientific.

So why is there so much 'science and religion' talk going on? Consider this:

Ophelia Benson talks about some strange developments, including...

The Cambridge Companion to Science and Religion, by Peter Harrison, from the Ian Ramsey Centre at Oxford University. The Ian Ramsey Centre has links with Templeton.

A BBC program on science and religion by historian Dr Thomas Dixon, which suggests more harmony than there is. His published work includes Science and Religion: A Very Short Introduction, with this blurb:

As Thomas Dixon shows in this balanced and thought-provoking introduction, many have seen harmony rather than conflict between faith and science.

Harmony? What does that mean? It means religion before science, so science doesn't get to tell religion it's wrong. As Ophelia points out, both Harrison and Dixon are members of the The International Society for Science & Religion, a Religion in Science organisation, founded by Anglican priest and Templeton Prize recipient, Sir John Polkinghorne. Dixon's also contributed to Science and Religion, New Historical Perspectives, with fellow ISSR members Geoffrey Cantor and Stephen Pumfrey, which has this blurb:

The idea of an inevitable conflict between science and religion was decisively challenged by John Hedley Brooke in his classic Science and Religion: Some Historical Perspectives (Cambridge, 1991). Almost two decades on, Science and Religion: New Historical Perspectives revisits this argument and asks how historians can now impose order on the complex and contingent histories of religious engagements with science.

Great, no conflict between science and religion, because they disallow science as an arbiter of religious claims. So who else belongs to this Society?

Michael Reiss, who recently wrote about Creationism in the classroom:

Effective teaching in this area can help students not only learn about the theory of evolution, but also better appreciate the way science is done, the procedures by which scientific knowledge accumulates, the limitations of science and the ways in which scientific knowledge differs from other forms of knowledge.
Oh yes, the *limitations* of science and those other forms of knowledge. Not really science *and* religion then. Religion, then science.

Here's another article, by Cathy Lynn Grossman; she's connected to Templeton too. She asks:

Do you think a baby conceived in test tube is still a child in the eyes -- or mind or hands, depending on your theology/philosophy -- of God? Does the science behind this merit the Nobel Prize for Medicine or condemnation in the realm of faith and ethics?

This sickening question doesn't seem to be about science and religion, but religion, then science.

As Jerry Coyne notes as well, there's a lot of accommodationism about. Elaine Ecklund has conducted a survey of scientists and religion that shows that scientists aren't very religious, but against her own data she says:

As we journey from the personal to the public religious lives of scientists, we will meet the nearly 50 percent of elite scientists like Margaret who are religious in a traditional sense...
So religion, then science again. Her work was funded by Templeton, you'll not be surprised to hear.

Not be outdone, at Cambridge we have The Faraday Institute for Science and Religion, funded by Templeton. One of their aims is, supposedly:

Scholarly research and publication on science and religion, including the organisation of invited groups of experts to write joint publications.

Let's have a look; here's a paper called Nothing but a Pack of Neurons? by Dr Stuart Judge, a physiologist and neuroscientist. Scientific, is it? Well, there's a lot of expert science and intelligent discussion of the problems of dualism and non-dualism. But towards the end, Judge says:

What then of Jesus’s saying: ‘be afraid of the One who can destroy both soul and body in hell’? This certainly reminds us that our Maker has the sovereign authority to do more than destroy our present embodiment. But does this use of the word soul (psyche) imply a separate kind of non-physical stuff that attaches to our bodies when we are alive and detaches from them at death, or can it be read as a way of indicating that from the point of view of the Creator our identity extends beyond space and time?
He's begging the question. So, we again have religion, then science. Perhaps that's a one-off? Well, no; here's Human genomics and the Image of God; and Creation and Evolution Not Creation or Evolution (the author gets this the right way round for a change!). It's all a travesty of science.

So, now, let it be known that wherever you see the words 'Science and Religion', what you'll actually be getting is 'Religion, then Science', and, more than likely, a link to the Templeton Foundation somewhere in the background.
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Tuesday, 23 March 2010

Burka or bikini?

People seem to burst a blood vessel when someone suggests it might be possible to study morality *scientifically*; I've no idea why, other than one's natural distrust for authority or, perhaps, authoritarianism. But of course morality is, and has been, studied scientifically by many; societies down the ages have listened to a mixture of experts, charlatans (including the religious who claim bogus authority) and the zeitgeist, and then enacted a 'universal' morality through their varying legislatures. This is all seen as perfectly normal, but if Sam Harris suggests an entirely *informed* approach, accusations of moral hegemony are made. A bit of moderation is needed, I feel. Here's his talk at TED 2010:


Surely the is-ought problem is overstated? Isn't the point that you can't get to an ought *simply* from a fact about the world; one has to add a 'want'. But 'wants' are facts about the world too, so to say that studying how things are is not going to inform our morality seems astounding to me. How else are we going to decide what's right?

Now, I'm a little uncomfortable, as is no doubt everyone, at the idea of ethical experts set up as some kind of moral arbitration court, determining a universal morality. However, that's not how *science* works. If instead a moral *science* could be established, with ethicists publishing papers and data in support, a moral *consensus* could be worked towards. Of course this is roughly what happens now, only there is nothing formal in the process and entirely unevidenced approaches to morality are considered, which allows arbitrary *prejudices* to become enshrined in our morality.

I don't think it's too much to ask to try to prevent that.

UPDATE:

Sam is inviting criticisms of his talk here. Most take issue with the meta-ethical issues raised, I think, questioning the quest for happiness he assumes, and so on; that there are, at bottom, moral axioms that are inscrutable to science. This seems to be accepted by many, although I'm not sure (as ever) we can ever know that. As with all other areas of enquiry, I think it's best to carry on *as if* we will be able to uncover some argument supported by data that allows us to scientifically decide such issues. In any case, it's sufficient, and scientific, in the interim to take putative axioms and examine situations based on those. More than that, it's what we do *now*! And matters that may have been considered axiomatic in the past have been examined scientifically and been questioned, and then pronounced non-axiomatic, so I don't see that these things are immune from study, even if one considers there will always be an axiom at bottom.

Of course, I'm no ethicist, as no doubt an expert could tell!

FURTHER UPDATE:


Not had a chance to read it yet!

Harris seems to adopt an ontological Epicurean approach, making pleasure seeking axiomatic, as opposed to the functional, purpose-driven Aristotelian approach. I think it's an interesting observation that, IMO, the Epicurean view appears more in line with what we've discovered about reality than the other, and this shows how science *can* inform morality, and continue to inform it.

Sam says, more eloquently of course, what I try to say above:
One of my critics put the concern this way: “Why should human wellbeing matter to us?” Well, why should logical coherence matter to us? Why should historical veracity matter to us? Why should experimental evidence matter to us? These are profound and profoundly stupid questions. No framework of knowledge can withstand such skepticism, for none is perfectly self-justifying. Without being able to stand entirely outside of a framework, one is always open to the charge that the framework rests on nothing, that its axioms are wrong, or that there are foundational questions it cannot answer. So what?
"No framework of knowledge can withstand such skepticism..."; I'm *inclined* to agree, and it's where I've always struggled with the is-ought distinction. Combined with the fact that, apparently, even though we cannot determine scientifically what we *should* do, that does seem to be what we always *have* done. Sure, people have posited odd moralities that have taken hold, but no adult accepts *any* normative advice without some thought, and no society does it without debate.

So, as I said above, let's do it better. I think that's what Sam's calling for. I've been persuaded by Dennett and others that the mystery of 'consciousness' is that we think it's mysterious; it's possible there is something similar going on with morality; the mystery of it is we *think* it's mysterious, not that it *is* mysterious. However, I will need to read more moral philosophy to even begin to justify such a statement.


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Wednesday, 23 September 2009

Good Science


"I think you'll find it's a bit more complicated than that." - Ben Goldacre

I've just finished reading Bad Science by Ben Goldacre, an excellent analysis of science scares, quacks and how things go wrong when the media report on science, with a particular emphasis on medical matters (he's a doctor). The book was nominated for the 2009 Samuel Johnson Prize for Non-fiction. As the quote above indicates, he also explores the problems that can arise even in good science - a very healthy approach, I think.

The book has chapters on homeopathy, the placebo effect, 'experts' like Gillian McKeith and Patrick Holford (Check out HolfordWatch), amongst others. Superb stuff, and scary too.

I particularly liked the chapter on Why Clever People Believe Stupid Things. You'll have to buy the book to read the full details, but I'll list the five reasons Goldacre cites for not trusting one's intuition, however tempting it may be.


1. We see patterns where there is only random noise.
2. We see causal relationships where there are none.
3. We overvalue confirmatory information for any given hypothesis.
4. We seek out confirmatory information for any given hypothesis.
5. Our assessment of the quality of new evidence is biased by our previous beliefs.


Add to that availability and social influences, and you have a recipe for the irrational. As Goldacre says:
It's not safe to let our intuitions and prejudices run unchecked and unexamined; it's in our interest to challenge these flaws in intuitive reasoning wherever we can, and the methods of science and statistics grew up specifically in opposition to these flaws.
One often hears the charge that rationalists harbour prejudices just as theists and other 'magical' thinkers do. Well, that's true, but that's why there is a scientific method. When another method comes along that recognises those prejudices as the scientific method does, then we may have something to challenge it. There *is* no other method currently; therefore, what is discovered by science can claim greater epistemic value than anything discovered by another. Where there is a contradiction, we must accept the scientific outcome, if we are acting reasonably.

To expand on the graphic at the top of the story, consider this version, courtesy of the University of California at Berkeley.

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Thursday, 6 August 2009

Is Collins Bad for the Health of the U.S.?

Francis Collins is shortly to be confirmed as the new leader of the US National Institutes of Health. Sam Harris has written an excellent analysis of the appointment.

The concern for me is the candidate's *qualifications* for the job on offer. On the whole, Collins (despite reservations about his previous jobs) would seem to be reasonably well qualified. What casts doubt on his *qualifications* is his explicit *scientific* pronouncements; driven, no doubt, by his religious beliefs. But I don't think people would have been as worried by, for example, Kenneth Miller, as a candidate, so it's not the fact of the religious beliefs *per se* that are at issue.

If Collins was a scientologist, with correspondingly odd ideas about *science*, I would be equally concerned (I should add that being concerned and questioning someone's qualifications is *not* the equivalent of wanting to ban someone from public office). If he were a keen astrologer, I would be equally concerned. If he were a keen homeopath, I would be even more concerned. If he were a keen chiropractor, I would be even more concerned.

So I can imagine a range of concerns depending on the candidate. What many have said is effectively this: if it can be shown that the opinions of the candidate that cause concern, when considering their qualifications, are somehow related to the candidate's religious beliefs, then they are *disallowed* as a cause for concern. Now this may be a matter of fact in the US, because of the Constitution. Fair enough, that may have to be accepted, but I don't think that should stop right-thinking people expressing their doubts about the candidate. It also doesn't stop it from being illogical. If Collins had said:
The universe was created 13.7 billion years ago when it was hatched from the egg of an enormous platypus.
instead of:
Almighty God, who is not limited in space or time, created a universe 13.7 billion years ago with its parameters precisely tuned to allow the development of complexity over long periods of time.
He could be disqualified by the first sentiment but not the second, because it attaches to a religious belief. This is, indeed, the strange case of Francis Collins!


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