There are some interesting similarities between Aristotle’s ‘mixed actions’ in Book III of the Nicomachean Ethics and the actions often thought to be justifiable with the Doctrine of Double Effect. Here I analyse these similarities by comparing Aristotle’s examples of mixed actions with standard cases from the literature on double effect such as, amongst others, strategic bombing, the trolley problem, and craniotomy. I find that, despite some common features such as the dilemmatic structure and the inevitability of a bad effect, (...) Aristotle’s mixed actions do not count as cases justifiable through application of the Doctrine of Double Effect because they fail to meet the crucial necessary condition of the Doctrine according to which the bad effect can only be a merely foreseen side-effect and not an intended means. (shrink)

Enhancement ist eine tolle Sache: dieser Begriff ist notwendigerweise positiv (ein bisschen wie der traditionelle Gottbegriff), so dass wenn eine Änderung keine richtige Verbesserung hervorbringt, es auch kein richtiges Enhancement gewesen ist: sehr praktisch. Wie könnte man unter diesen Umständen überhaupt gegen Enhancement sein? Beim Enhancement geht es nicht mal um das plausible aber nicht unumstrittene „mehr ist besser“; vielmehr geht es um das tautologische „besser ist besser“.

I offer eight arguments against the Doctrine of Double Effect, a normative principle according to which in pursuing the good it is sometimes morally permissible to bring about some evil as a side-effect or merely foreseen consequence: the same evil would not be morally justified as an intended means or end.

On Don Marquis’s future of value account of the wrongness of killing, ‘what makes it wrong to kill those individuals we all believe it is wrong to kill, is that killing them deprives them of their future of value’. Marquis has recently argued for a narrow interpretation of his future of value account of the wrongness of killing and against the broad interpretation that I had put forward in response to Carson Strong. In this article I argue that the narrow (...) view is problematic because it violates some basic principles of equality and because it allows for some of the very killing that Marquis sets out to condemn; further, I argue that the chief reason why Marquis chooses the narrow view over the broad view – namely that the broad view would take the killing of some nonhuman animals to be also wrong – should rather be considered a welcome upshot of the broad view. (shrink)

I argue that the arguments brought by Counsel for M to the English Court of Protection are morally problematic in prioritising subjective interests that are the result of ‘consistent autonomous thought’ over subjective interests that are the result of a more limited cognitive perspective.

Ought parents, in general, to value being biologically tied to their children? Is it important, in particular, that both parents be biologically tied to their children? I will address these fundamental questions by looking at a fairly new practice within IVF treatments, so-called IVF-with-ROPA ( Reception of Oocytes from Partner ), which allows lesbian couples to „share motherhood‟ with one partner providing the eggs while the other becomes pregnant. I believe that IVF-with-ROPA is, just like other IVF treatments, morally permissible; (...) but here I argue that the increased biological ties which IVF-with-ROPA allows for do not have any particular value beside the satisfaction of a legitimate wish, because there is no intrinsic value in a biological tie between parents and children; further, I argue that equality within parental projects cannot be achieved by redistributing biological ties. (shrink)

I argue that the right to sexual satisfaction of severely physically and mentally disabled people and elderly people who suffer from neurodegenerative diseases can be fulfilled by deploying sex robots; this would enable us to satisfy the sexual needs of many who cannot provide for their own sexual satisfaction; without at the same time violating anybody’s right to sexual self-determination. I don’t offer a full-blown moral justification of deploying sex robots in such cases, as not all morally relevant concerns can (...) be addressed here; rather, I put forward a plausible way of fulfilling acute sexual needs without thereby violating anybody’s sexual rights. (shrink)

In this paper I outline a theory of legitimacy that grounds the state’s right to rule on a natural duty not to harm others. I argue that by refusing to enter the state, anarchists expose those living next to them to the dangers of the state of nature, thereby posing an unjust threat. Since we have a duty not to pose unjust threats to others, anarchists have a duty to leave the state of nature and enter the state. This duty (...) correlates to a claim-right possessed by those living next to them, who also have a right to act in self-defence to enforce this obligation. This argument, if successful, would be particularly attractive, as it provides an account of state legitimacy without importing any normative premises that libertarians would reject. (shrink)

A counter analysis of David Chalmers' claims about the possibility of mind uploading within the context of the Singularity event.

Thinking is overrated: golfers perform best when distracted and under pressure; firefighters make the right calls without a clue as to why; and you are yourself ill advised to look at your steps as you go down the stairs, or to try and remember your pin number before typing it in. Just do it, mindlessly. Both empirical psychologists and the common man have long worked out that thinking is often a bad idea, but philosophers still hang on to an intellectualist (...) picture of human action. This book challenges that picture and calls on philosophers to wake up to the power of mindlessness: it is our habits, skills and conventions that help us cope with a world way too diverse for us to hope to always reinterpret it. The book presents the empirical evidence that has been accumulating over the last few decades and offers a philosophical analysis of mindless phenomena such as habits, skilled activity, automatic actions, emotional and spontaneous reactions and social conventions, arguing that traditional philosophical theories of action should be revised to do justice to this forgotten but important part of our lives: when we act mindlessly, we are free and fully rational even though we neither deliberate nor are aware of what we are doing. (shrink)

Judith Jarvis Thomson has recently proposed a new argument for the thesis that killing the one in the Trolley Problem is not permissible. Her argument relies on the introduction of a new scenario, in which the bystander may also sacrifice herself to save the five. Thomson argues that those not willing to sacrifice themselves if they could may not kill the one to save the five. Bryce Huebner and Marc Hauser have recently put Thomson's argument to empirical test by asking (...) people what they should do in the new trilemma case, in which they may also sacrifice themselves. They found that the majority judge that they should either kill the one or sacrifice themselves; Huebner and Hauser argue that those numbers speak against Thomson's argument. But Thomson's argument was about the dialectical effect of the new trilemma on the traditional dilemma, rather than about the trilemma itself. Here I present the results of a study in which I asked subjects first what they should do in the trilemma and then what they should do in the traditional Trolley Problem. I found that, if asked first about the trilemma, subjects then have the intuition that killing the one in the traditional Bystander at the Switch is not permissible?exactly what Thomson's argument had predicted. (shrink)

I argue that, if drones make waging war easier, the reason why they do so may not be the one commonly assumed within the philosophical debate – namely the promised reduction in casualties on either side – but a more complicated one which has little to do with concern for one’s own soldiers or, for that matter, the enemy; and a lot more to do with the political intricacies of international relations and domestic politics; I use the example of the (...) Obama Administration’s drone policies to illustrate this argument. My point is meant to have wider methodological significance: philosophy can make an important contribution to this and related applied debates; but it is not by artificially – and optimistically – simplifying realities on the ground that philosophers can be of help. (shrink)

We argue that lack of direct and conscious control is not, in principle, a reason to be afraid of machines in general and robots in particular: in order to articulate the ethical and political risks of increasing automation one must, therefore, tackle the difficult task of precisely delineating the theoretical and practical limits of sustainable delegation to robots.

In this paper I argue that there is an important anomaly to the causalist/compatibilist paradigm in the philosophy of action and free will. This anomaly, which to my knowledge has gone unnoticed so far, can be found in the philosophy of Harry Frankfurt. Two of his most important contributions to the field – his influential counterexample to the Principle of Alternate Possibilities and his ‘guidance’ view of action – are incompatible. The importance of this inconsistency goes far beyond the issue (...) of coherence within Frankfurt’s philosophy. I shall argue that this inconsistency represents an important anomaly within the causalist/compatibilist framework; so that we should start to seriously consider having to move on from the established paradigm. (shrink)

Are science and religion compatible when it comes to understanding cosmology (the origin of the universe), biology (the origin of life and of the human species), ethics, and the human mind (minds, brains, souls, and free will)? Do science and religion occupy non-overlapping magisteria? Is Intelligent Design a scientific theory? How do the various faith traditions view the relationship between science and religion? What, if any, are the limits of scientific explanation? What are the most important open questions, problems, or (...) challenges confronting the relationship between science and religion, and what are the prospects for progress? These and other questions are explored in Science and Religion: 5 Questions--a collection of thirty-three interviews based on 5 questions presented to some of the world's most influential and prominent philosophers, scientists, theologians, apologists, and atheists. Contributions by Simon Blackburn, Susan Blackmore, Sean Carroll, William Lane Craig, William Dembski, Daniel C. Dennett, George F.R. Ellis, Owen Flanagan, Owen Gingerich, Rebecca Newberger Goldstein, John F. Haught, Muzaffar Iqbal, Lawrence Krauss, Colin McGinn, Alister McGrath, Mary Midgley, Seyyed Hossein Nasr, Timothy O'Connor, Massimo Pigliucci, John Polkinghorne, James Randi, Alex Rosenberg, Michael Ruse, Robert John Russell, John Searle, Michael Shermer, Victor J. Stenger, Robert Thurman, Michael Tooley, Charles Townes, Peter van Inwagen, Keith Ward, Rabbi David Wolpe. (shrink)

I argue that it is possible for prospective mothers to wrong prospective fathers by bearing their child; and that lifting paternal liability for child support does not correct the wrong inflicted to fathers. It is therefore sometimes wrong for prospective mothers to bear a child, or so I argue here. I show that my argument for considering the legitimate interests of prospective fathers is not a unique exception to an obvious right to procreate. It is, rather, part of a growing (...) consensus that procreation can be morally problematic and that generally talking of rights in this context might not be warranted. Finally, I argue that giving up a right to procreate does not imply nor suggest giving up on women’s absolute right to abort, which I defend. (shrink)

I argue that the empirical literature on priming effects does not warrant nor suggest the conclusion, drawn by prominent psychologists such as J. A. Bargh, that we have no free will or less free will than we might think. I focus on a particular experiment by Bargh – the ‘elderly’ stereotype case in which subjects that have been primed with words that remind them of the stereotype of the elderly walk on average slower out of the experiment’s room than control (...) subjects – and I show that we cannot say that subjects cannot help walking slower or that they are not free in doing do. I then illustrate how these cases can be reconciled and normalized within a Davidsonian theory of action to show that, in walking slower, subjects are acting intentionally. My argument applies across various experiments, including those of goal priming. In the final section I argue that the only cases in which priming effects are efficacious are so-called Buridan cases. (shrink)

I argue against the Doctrine of Double Effect’s explanation of the moral difference between terror bombing and strategic bombing. I show that the standard thought-experiment of terror bombing and strategic bombing which dominates this debate is underdetermined with regards to the agents’ psychologies: (a) if Terror Bomber and Strategic Bomber have the same causal beliefs, then why does Terror Bomber set out to kill the children? It may then be this unwarranted and immoral choice and not the Doctrine of Double (...) Effect that explains the moral difference; (b) if the two have different causal beliefs, then we can’t rule out the counterfactual that, had Strategic Bomber had the same beliefs as Terror Bomber, she would have also acted as Terror Bomber did. (shrink)

I argue against various versions of the ‘attitude’ view of consent and of the ‘action’ view of consent: I show that neither an attitude nor an action is either necessary or sufficient for consent. I then put forward a different view of consent based on the idea that, given a legitimate epistemic context, absence of dissent is sufficient for consent: what is crucial is having access to dissent. In the latter part of the paper I illustrate my view of consent (...) by applying it to the case of consenting to being an organ donor. (shrink)

Philosophy has been a public endeavor since its origins in ancient Greece, India, and China. However, recent years have seen the development of a new type of public philosophy conducted by both academics and non- professionals. The new public philosophy manifests itself in a range of modalities, from the publication of magazines and books for the general public to a variety of initiatives that exploit the power and flexibility of social networks and new media. In this paper we examine the (...) phenomenon of public philosophy in its several facets, and investigate whether and in what sense it is itself a mix of philosophical practice and teaching. We conclude with a number of suggestions to academic colleagues on why and how to foster further growth of public philosophy for the benefit of society at large and of the discipline itself. (shrink)

Can ethics be approached scientifically? What's the relationship between science and the study of morality?

I argue that we should give up the fight to rescue causal theories of action from fundamental challenges such as the problem of deviant causal chains; and that we should rather pursue an account of action based on the basic intuition that control identifies agency. In Section 1 I introduce causalism about action explanation. In Section 2 I present an alternative, Frankfurt’s idea of guidance. In Section 3 I argue that the problem of deviant causal chains challenges causalism in two (...) important respects: first, it emphasizes that causalism fails to do justice to our basic intuition that control is necessary for agency. Second, it provides countless counterexamples to causalism, which many recent firemen have failed to extinguish – as I argue in some detail. Finally, in Section 4 I argue, contra Al Mele, that control does not require the attribution of psychological states as causes. (shrink)

I defend the argument that if embryo loss in stem cell research is morally problematic, then embryo loss in in vivo conception is similarly morally problematic. According to a recent challenge to this argument, we can distinguish between in vivo embryo loss and the in vitro embryo loss of stem cell research by appealing to the doctrine of double effect. I argue that this challenge fails to show that in vivo embryo loss is a mere unintended side effect while in (...) vitro embryo loss is an intended means and that, even if we refine the challenge by appealing to Michael Bratman's three roles of intention, the distinction is still unwarranted. (shrink)

Mayr’s proximate–ultimate distinction has received renewed interest in recent years. Here we discuss its role in arguments about the relevance of developmental to evolutionary biology. We show that two recent critiques of the proximate–ultimate distinction fail to explain why developmental processes in particular should be of interest to evolutionary biologists. We trace these failures to a common problem: both critiques take the proximate–ultimate distinction to neglect specific causal interactions in nature. We argue that this is implausible, and that the distinction (...) should instead be understood in the context of explanatory abstractions in complete causal models of evolutionary change. Once the debate is reframed in this way, the proximate–ultimate distinction’s role in arguments against the theoretical significance of evo-devo is seen to rely on a generally implicit premise: that the variation produced by development is abundant, small and undirected. We show that a “lean version” of the proximate–ultimate distinction can be maintained even when this isotropy assumption does not hold. Finally, we connect these considerations to biological practice. We show that the investigation of developmental constraints in evolutionary transitions has long relied on a methodology which foregrounds the explanatory role of developmental processes. It is, however, entirely compatible with the lean version of the proximate–ultimate distinction. (shrink)

I argue against the Doctrine of Double Effect’s explanation of the moral difference between terror bombing and strategic bombing. I show that the standard thought-experiment of Terror Bomber and Strategic Bomber which dominates this debate is underdetermined in three crucial respects: (1) the non-psychological worlds of Terror Bomber and Strategic Bomber; (2) the psychologies of Terror Bomber and Strategic Bomber; and (3) the structure of the thought-experiment, especially in relation to its similarity with the Trolley Problem. (1) If the two (...) worlds are not identical, then it may be these differences between the two worlds and not the Doctrine of Double Effect to explain the moral difference; (2a) if Terror Bomber and Strategic Bomber have the same causal beliefs, then why does Terror Bomber set out to kill the children? It may then be this unwarranted and immoral choice and not the Doctrine of Double Effect that explains the moral difference; (2b) if the two have different causal beliefs, then we can’t rule out the counterfactual that, had Strategic Bomber had the same beliefs as Terror Bomber, she would have also acted as Terror Bomber did. Finally, (3) the Strategic Bomber scenario could also be constructed so as to be structurally equivalent to the Fat Man scenario in the Trolley Problem: but then the Doctrine of Double Effect would give different answers to two symmetrical cases. (shrink)

I distinguish between 'hard nudges' and 'soft nudges', arguing that it is possible to show that the latter can be compatible with informed consent - as Cohen has recently suggested; but that the real challenge is the compatibility of the former. Hard nudges are the more effective nudges because they work on less than conscious mechanisms such as those underlying our habits: whether those influences - which are often beyond the subject's awareness - can be reconciled with informed consent in (...) health care is the more challenging question. I suggest two directions for possible answers: on the one hand, looking at the growing empirical literature on mindless judgement and behaviour; and on the other hand considering a more diversified conception of consent, which I sketch. (shrink)

The paper investigates the role played by pre-scientific experience in the philosophy of Josiah Royce and Edmund Husserl. Such a notion, generally associated with Husserl’s conception of the life-world (Lebenswelt) in the Crisis of European Sciences and Transcendental Phenomenology (1936), finds an equivalent and historical antecedent in Royce’s distinction between a world of description and a world of appreciation. The final goal is to show how, despite their different philosophical frameworks, Royce and Husserl agree on the idea that, through the (...) rejection of the world given through mere perception (Lebenswelt/world of appreciation), European sciences have somehow failed their task of universality. As it will be shown, this idea is also due to methodological affinities among the two thinkers. The experience of interconnectedness among individual minds, while precluded in the mere scientific explanation of the world, it becomes possible through the enactment of the Lebenswelt or, as in Royce’s case, through a return to the experience of the world of appreciation. (shrink)

This paper focuses on the concept of symbol and tries to outline its function as a means of communication. In order to describe the communicative qualities of symbol, it is necessary to show its ethical nature. The paper analyses the role symbols play in intersubjective relations, in the construction of the individual’s reality, and in the human ability to attribute meanings and assign functions.The conceptual frame- work for the understanding of what symbol is, how it works, and how it is (...) made is a particular combination of phenomenology and pragmatism, which lies on the theory of ‘appresentation’, as we can find it in Alfred Schütz’s viewpoint. The paper invites a reflection on the power of symbol, particularly on its power to communicate the incommunicable. (shrink)

I show that Pickard’s argument against the irresistibility of addiction fails because her proposed dilemma, according to which either drug-seeking does not count as action or addiction is resistible, is flawed; and that is the case whether or not one endorses Pickard’s controversial definition of action. Briefly, we can easily imagine cases in which drug-seeking meets Pickard’s conditions for agency without thereby implying that the addiction was not irresistible, as when the drug addict may take more than one route to (...) go meet her dealer. (shrink)

Should involuntarily childless people have the sameopportunities to access parenthood as those who are not involuntarily childless? In the context of assisted reproductive technologies, affirmative answers to this question are often cashed out in terms of positive rights, including rights to third-party reproduction. In this paper, wecritically explore the scope and extent to which any such right would hold up morally. Ultimately, we argue for a departure away from positive parental rights. Instead, we argue that the state has an imperfect (...) duty to benefit involuntarily childless people in relation to their parental aspirations. (shrink)

Just war theory is currently dominated by two positions. According to the orthodox view, provided that jus in bello principles are respected, combatants have an equal right to fight, regardless of the justice of the cause pursued by their state. According to “revisionists” whenever combatants lack reasons to believe that the war they are ordered to fight is just, their duty is to disobey. I argue that when members of a legitimate state acting in good faith are ordered to fight, (...) they acquire a pro-tanto obligation to obey which does not depend for its validity on the justice of the cause being pursued. However, when the war is unjust, this obligation may be overridden, under certain conditions, by the obligation not to contribute to the unjustified killing of innocents. This is because the pro-tanto force of the duty to obey the law is best understood in terms of “presumptive”, rather than “exclusionary” reasons for action. This approach captures the insights of both the orthodox and the revisionist view, while avoiding the problems that afflict each of them. (shrink)

The argument for the moral permissibility of killing newborns is a challenge to liberal positions on abortion because it can be considered a reductio of their defence of abortion. Here I defend the liberal stance on abortion by arguing that the argument for the moral permissibility of killing newborns on ground of the social, psychological and economic burden on the parents recently put forward by Giubilini and Minerva is not valid; this is because they fail to show that newborns cannot (...) be harmed and because there are morally relevant differences between fetuses and newborns. (shrink)

A New Italian translation of Principia Ethica coming almost 60 years after the 1964 translation by Gianni Vattimo with Nicola Abbagnano’s preface. The new edition makes room for the English text alongside the Italian translation; it includes the 1922 Preface, a bibliography of Moore’s ethical writings with critical literature, a chronology of Moore’s life and works, and an Index. The Introduction by Sergio Cremaschi reconstructs the background of ideas, concerns and intentions from which Moore’s Principia Ethica originated. It stresses the (...) role of religious concerns, as well as that of the Idealist legacy. I argue that PE is more a patchwork of incompatible lines of argument than a consistent work. It compares PE with Rashdall’s almost contemporary ethical work, suggesting that the latter defends the same general claims in a different and more plausible way, which manages to answer decisive objections. It ends with the suggestion that the emergence of Analytic Ethics was a more multi-faceted phenomenon than the received view would make us believe and the analytic tradition's wheat, that is, what logic can do for philosophy, has to be separated from the chaff, that is, the confused, and besides mutually incompatible, legacies of Utilitarianism and Idealism. (shrink)

I analyse the relationship between the Doctrine of Double Effect and the Trolley Problem: the former offers a solution for the latter only on the premise that killing the one in Bystander at the Switch is permissible. Here I offer both empirical and theoretical arguments against the permissibility of killing the one: firstly, I present data from my own empirical studies according to which the intuition that killing the one is permissible is neither widespread nor stable; secondly, I defend a (...) normative principle according to which killing the one in Bystander at the Switch is not permissible. In conclusion, there just is no trolley problem. (shrink)

In the future, full ectogestation – in which artificial placenta technology would be used to carry out the entirety of gestation – could be an alternative to human pregnancy. This article analyzes some underexplored objections to ectogestation which relate to the possibility for new and continuing forms of social oppression. In particular, we examine whether ectogestation could be linked to an unwarranted de-valuing of certain aspects of female reproductive embodiment, or exacerbate objectionable kinds of scrutiny over the reproductive choices of (...) gestating persons. Without discounting the potential benefits of full ectogestation, we conclude that the socially oppressive potential of ectogestation, on top of other concerns, warrants further critical ethical reflection. (shrink)

La libertà di pensiero è l'assunto principale della filosofia di Spinoza in età moderna. La posizione dei filosofi nei confronti dell'ortodossia religiosa è particolarmente delicata, dal momento che pone in questione l'autorità stessa delle Scritture e la verità della Torah e della Chiesa. In particolare Spinoza riflette nel Trattato Teologico Politico del nesso tra il libero pensiero e l'obbedienza del popolo Ebraico alla Legge Mosaica.

Is the wish to be biologically related to your children legitimate? Here, I respond to an argument in support of a negative answer to this question according to which a preference towards having children one is biologically related to is analogous to a preference towards associating with members of one’s own race. I reject this analogy, mainly on the grounds that only the latter constitutes discrimination; still, I conclude that indeed a preference towards children one is biologically related to is (...) morally illegitimate because, in the context of parental love, biological considerations are normatively irrelevant. (shrink)

The Modern Synthesis (MS) is the current paradigm in evolutionary biology. It was actually built by expanding on the conceptual foundations laid out by its predecessors, Darwinism and neo-Darwinism. For sometime now there has been talk of a new Extended Evolutionary Synthesis (EES), and this article begins to outline why we may need such an extension, and how it may come about. As philosopher Karl Popper has noticed, the current evolutionary theory is a theory of genes, and we still lack (...) a theory of forms. The field began, in fact, as a theory of forms in Darwin’s days, and the major goal that an EES will aim for is a unification of our theories of genes and of forms. This may be achieved through an organic grafting of novel concepts onto the foundational structure of the MS, particularly evolvability, phenotypic plasticity, epigenetic inheritance, complexity theory, and the theory of evolution in highly dimensional adaptive landscapes. (shrink)

Il lavoro concerne il delicato tema della libertà umana nella prospettiva spinoziana. L'obbedienza e la saggezza sembrano costituire le due possibilità per l'uomo dinanzi al raggiungimento della salvezza. Il filosofo olandese delinea nelle sue opere, e in particolare nel Trattato Teologico Politico, due percorsi in grado di condurre gli uomini verso la beatitudine. La dicotomia tra i due percorsi - il primo segnato da una conoscenza chiara e intuitiva del sommo bene, il secondo da un'azione morale ispirata alla carità - (...) viene risolta analizzando il messaggio cristiano, che costituisce uno dei principali punti di discussione tra Spinoza e le sette ereticale del suo tempo. (shrink)

Evolutionary theory is undergoing an intense period of discussion and reevaluation. This, contrary to the misleading claims of creationists and other pseudoscientists, is no harbinger of a crisis but rather the opposite: the field is expanding dramatically in terms of both empirical discoveries and new ideas. In this essay I briefly trace the conceptual history of evolutionary theory from Darwinism to neo-Darwinism, and from the Modern Synthesis to what I refer to as the Extended Synthesis, a more inclusive conceptual framework (...) containing among others evo–devo, an expanded theory of heredity, elements of complexity theory, ideas about evolvability, and a reevaluation of levels of selection. I argue that evolutionary biology has never seen a paradigm shift, in the philosophical sense of the term, except when it moved from natural theology to empirical science in the middle of the 19th century. The Extended Synthesis, accordingly, is an expansion of the Modern Synthesis of the 1930s and 1940s, and one that—like its predecessor—will probably take decades to complete. (shrink)

The theory of evolution, which provides the conceptual framework for all modern research in organismal biology and informs research in molecular bi- ology, has gone through several stages of expansion and refinement. Darwin and Wallace (1858) of course proposed the original idea, centering on the twin concepts of natural selection and common descent. Shortly thereafter, Wallace and August Weismann worked toward the complete elimination of any Lamarckian vestiges from the theory, leaning in particular on Weismann’s (1893) concept of the separation (...) of soma and germ, resulting in what is some- times referred to as “neo-Darwinism”. (shrink)

The “demarcation problem,” the issue of how to separate science from pseu- doscience, has been around since fall 1919—at least according to Karl Pop- per’s (1957) recollection of when he first started thinking about it. In Popper’s mind, the demarcation problem was intimately linked with one of the most vexing issues in philosophy of science, David Hume’s problem of induction (Vickers 2010) and, in particular, Hume’s contention that induction cannot be logically justified by appealing to the fact that “it works,” (...) as that in itself is an inductive argument, thereby potentially plunging the philosopher straight into the abyss of a viciously circular argument. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Why Gaia?Massimo Pigliucci (bio)The Gaia Hypothesis: Science on a Pagan Planet, Michael Ruse, Chicago: University of Chicago Press, 2013. 272 pages.“The Gaia Hypothesis: Science on a Pagan Planet tells a story that comes out of the 1960s, a story that reflects all of the beliefs and enthusiasms and tensions of that decade.” So begins Michael Ruse’s fascinating, if at times puzzling, exploration of James Lovelock’s famous idea that (...) our planet is, in a serious scientific sense, a living organism with a tendency of taking care of (her)self. But why tell this particular story, especially considering that Gaia hardly makes an appearance in today’s scientific or philosophical publications, and doesn’t even seem quite that popular with the lay public as it used to be? Because, as Ruse tells us near the end of the book, at the onset of chapter seven: “the paradox that set us on our path [is] why the scientific community reacted so negatively to the Gaia hypothesis, whereas the public reaction was so positive.”As it turns out, there is a good answer to that conundrum, one that Ruse himself lays out clearly in the last chapter of the book, and which makes the reader wonder why this should count a paradox at all. But we will get there in due time. First, the basics: the so-called Gaia hypothesis is the brainchild of iconoclastic inventor-turned-independent-scientist James Lovelock, who later got significant help in elaborating (and promoting) his ideas from another iconoclast, biologist Lynn Margulis. By the time you get to the end of Ruse’s engaging book, however, you won’t have gained a particularly good understanding of what the hypothesis actually consists. But that’s not Ruse’s fault, it is Lovelock’s (and Margulis’). At times it sounds like the entirely uncontroversial claim that the Earth’s [End Page 117] biosphere is a somewhat homeostatic system—i.e., a biophysical system that is resistant to major changes, at the least within a certain range (the planet’s atmosphere, after all, did change dramatically early on, increasing its oxygen content as a result of the evolution of photosynthetic organisms—the anaerobic life forms that had up to that point been dominant did not appreciate the novelty). At other times the claim is downright preposterous: the Earth literally is a living organism (according to Lovelock) (Chapter 7),1 a finding that allegedly puts in question the whole Darwinian view of biological evolution (according to Margulis) (Chapter 7), a position that can only be characterized as nonsense on stilts. At yet other moments, Gaia is presented as just a metaphor to help us wrap our minds around the complexities (and homeostatic properties) of the world’s ecosystems (Chapter 8). It is this never-ending oscillation between the trivial and the bizarre that has led the majority of scientists to write off Gaia, to the chagrin of Lovelock, Margulis, and a large number of New Age tree huggers from the 1960s.Indeed, the scientific reaction to Gaia was swift and ranging from the condescending to the unforgiving. Evolutionary biologist John Maynard Smith—never one to mince words—called it “an evil religion” (Chapter 2). Another evolutionary biologist, Stephen Jay Gould (whose own disagreements with Maynard Smith became legendary) said that “Gaia strikes me as a metaphor, not a mechanism” (Chapter 2). Ecologist Robert May, who eventually became president of the Royal Society, called Lovelock “a holy fool” (Chapter 2). The highly respected theoretical biologist W.D. Hamilton said that in order for the hypothesis to work, it would require “treaties between Neptune and Zeus, a Gaian Interpol, conventions about bills of lading for chemical transport by air and water, and so on” (Chapter 7). Finally, Richard Dawkins accused Lovelock of committing the fallacy of “the BBC theorem,” assuming (or wishfully thinking) that the world is a harmonious place, just like in naive BBC nature documentaries (Chapter 2).You get the gist: pretty much from the beginning, and with very few exceptions, the scientific establishment rejected Gaia on the grounds that it is not a scientific hypothesis at all, and that its main tenets actually go against pretty... (shrink)

In recent years, biologists have increasingly been asking whether the ability to evolve — the evolvability — of biological systems, itself evolves, and whether this phenomenon is the result of natural selection or a by-product of other evolutionary processes. The concept of evolvability, and the increasing theoretical and empirical literature that refers to it, may constitute one of several pillars on which an extended evolutionary synthesis will take shape during the next few years, although much work remains to be done (...) on how evolvability comes about. (shrink)

Biological research on race has often been seen as motivated by or lending credence to underlying racist attitudes; in part for this reason, recently philosophers and biologists have gone through great pains to essentially deny the existence of biological human races. We argue that human races, in the biological sense of local populations adapted to particular environments, do in fact exist; such races are best understood through the common ecological concept of ecotypes. However, human ecotypic races do not in general (...) correspond with 'folk' racial categories, largely because many similar ecotypes have multiple independent origins. Consequently, while human natural races exist, they have little or nothing in common with 'folk' races. (shrink)

The concept of burden of proof is used in a wide range of discourses, from philosophy to law, science, skepticism, and even in everyday reasoning. This paper provides an analysis of the proper deployment of burden of proof, focusing in particular on skeptical discussions of pseudoscience and the paranormal, where burden of proof assignments are most poignant and relatively clear-cut. We argue that burden of proof is often misapplied or used as a mere rhetorical gambit, with little appreciation of the (...) underlying principles. The paper elaborates on an important distinction between evidential and prudential varieties of burdens of proof, which is cashed out in terms of Bayesian probabilities and error management theory. Finally, we explore the relationship between burden of proof and several (alleged) informal logical fallacies. This allows us to get a firmer grip on the concept and its applications in different domains, and also to clear up some confusions with regard to when exactly some fallacies (ad hominem, ad ignorantiam, and petitio principii) may or may not occur. (shrink)