From fertilization to approximately the sixteenth day of development, human embryonic cells are said to have the capacities of totipotency and monozygotic twinning, both of which are problematic to a theory of ensoulment at fertilization. In this article I will address the problems which these capacities pose to such a theory and present an interpretation of the biological data which renders ensoulment at fertilization more plausible. I will then argue that not only is an ensoulment theory consistent with current biological (...) data on the human embryo, but it may offer an explanation for the phenomencon of monozygotic twinning. (shrink)

Catholic opponents of abortion and embryonic stem cell research usually base their position on a hylomorphic account of ensoulment at fertilization. They maintain that we each started out as one-cell ensouled organisms. Critics of this position argue that it is plagued by a number of intractable problems due to fission (twinning) and fusion. We're unconvinced that such objections to early ensoulment provide any reason to doubt the coherence of the hylomorphic account. However, we do maintain that a defense of ensoulment (...) at fertilization must deny that we're essentially organisms. (shrink)

Earl Conee has argued that the metaphysics of personal identity is irrelevant to the morality of abortion. He claims that doing all the substantial work in abortion arguments are moral principles and they garner no support from rival metaphysics theories. Conee argues that not only can both immaterialist and materialist theories of the self posit our origins at fertilization, but positing such a beginning doesn’t even have any significant impact on the permissibility of abortion. We argue that this thesis is (...) wrong on both accounts. We do so, in part, by relying on a hylomorphic rather than a Cartesian conception of the soul. There are good reasons for believing such a soul theory can favor an earlier origin than the leading materialist accounts. We also show that the theological metaphysics of hylomorphism provide greater support for a pro-life position than the Cartesian position Conee discusses. However, we argue that even on a materialistic account of personal identity, metaphysics has substantial bearing upon the morality of early abortions. (shrink)

Our contention is that all of the major arguments for abortion are also arguments for permitting infanticide. One cannot distinguish the fetus from the infant in terms of a morally significant intrinsic property, nor are they morally discernible in terms of standing in different relationships to others. The logic of our position is that if such arguments justify abortion, then they also justify infanticide. If we are right that infanticide is not justified, then such arguments will fail to justify abortion. (...) We respond to those philosophers who accept infanticide by putting forth a novel account of how the mindless can be wronged which serves to distinguish morally significant potential from morally irrelevant potential. This allows our account to avoid the standard objection that many entities possess a potential for personhood which we are intuitively under no obligation to further or protect. (shrink)

The potential for healthy development is the key to determining the moral status of mindless and minimally minded organisms. It even provides the basis for a defense of speciesism. Mindless and minimally minded human beings have interests in the healthy development of sophisticated mental capacities, which explains why they are greatly harmed when death, disease, and other events frustrate those interests. Since the healthy development of members of non-human species doesn’t produce the same sophisticated mental capacities, mindless and minimally minded (...) non-human beings lack the interests of mindless and minimally minded human beings. The absence of such interests in developing valuable mental capabilities means non-humans can’t be benefited and harmed to the same degree as human beings. This results in mindless and minimally minded non-humans having lower moral status than human beings. This doesn’t mean that any member of our species is more valuable than any other member of any other possible species. We instead claim that human beings with undeveloped or impaired minds have greater moral status than any member of any other known species that has manifested equivalent mental capacities. (shrink)

This paper presents an account of how human spontaneous embryonic chimeras are formed. On the prevalent view in the philosophical literature, it is said that chimeras are the product of two embryos that fuse to form a new third embryo. We call this version of fusion synthesis. In contrast to synthesis, we present an alternative mechanism for chimera formation called incorporation, wherein one embryo incorporates the cells of a second embryo into its body. We argue that the incorporation thesis explains (...) other types of chimera formation, which are better understood, and is more consistent than synthesis with what is known about embryological development. Incorporation also has different implications than synthesis and so avoids the philosophical puzzles that are often said to accompany embryonic chimera formation—puzzles which pose problems to the human embryo’s persistence from fertilization to the fetal stage of human development. (shrink)

A number of philosophers maintain that the destruction of an embryo in the first 2 weeks after fertilization is not morally problematic as it is metaphysically impossible for any human organism to then have existed. We contend that the typical adult human organism was once a zygote so there is no metaphysical shortcut to justify early abortion. We show that five arguments against human organisms ever having been zygotes fail. All of the arguments have to do with one variant or (...) another of the zygote or early embryo dividing. They do not provide any reason to believe that since some adult organisms are not identical to zygotes due to earlier divisions, none could have been. (shrink)

Is it coherent to be personally opposed to abortion but to accept others’ decisions to terminate their pregnancy? This might appear to be the case if one appeals to the different situations and attitudes of pregnant women. To the contrary, only those people whose personal opposition to abortion is restricted to situations in which the pregnancy and its consequences are not very burdensome can consistently hold their IPOB position and espouse an objective ethics. The vast majority of people claiming to (...) be merely personally opposed cannot coherently sustain that position. To be logically coherent, the latter not only must be committed to condemning the abortions of others and have the moral standing to do so, but more importantly and controversially, must be committed to call for a legal ban on abortion rather than restrict themselves to being merely personally opposed to abortion. (shrink)

One often hears Catholic and non-Catholic politicians and private citizens claim “I am personally opposed to abortion... ” but add that it is morally permissible for others to accept abortion. We consider a Rawlsian defense of this position based on the recognition that one’s opposition to abortion stems from acomprehensive doctrine which is incompatible with Public Reason. We examine a second defense of this position based upon respecting the autonomy of others and a third grounded in the harm to the (...) unwilling mother overriding that to the aborted fetus. We look at a fourth and fifth defense based upon our epistemic ignorance regarding the burdens on others of unwanted pregnancies and the ontological and moral status of embryo. We find most versions of these defenses to be wanting and conclude that only if the proponents of the position are subjectivist about morals, which few are, can they offer a coherent defense. (shrink)

During the first 16 days after fertilization, the developing embryo has the capacity to separate into two genetically identical embryos, or monozygotic twins (triplets, etc.). Because of this capacity, philosophers typically argue that the pre-16 day embryo is not a human being. On a Biological Account of Personal Identity (BAPI), which considers us human beings as essentially organisms, the development of the embryo into an organism at 16 (or 21) days marks our origins. The development of an embryo into an (...) organism is also said to mark the point at which the embryo loses its potential to give rise to monozygotic twins. This is considered a strength of the Biological account of our origins. I will argue here that it is the BAPI's own criteria that will have to allow cases of monozygotic twinning occurring even after 16 days, and that in virtue of this a Biological Account faces twinning puzzles usually reserved for earlier accounts of our origins. (shrink)

Part of the appeal of the biological approach to personal identity is that it does not have to countenance spatially coincident entities. But if the termination thesis is correct and the organism ceases to exist at death, then it appears that the corpse is a dead body that earlier was a living body and distinct from but spatially coincident with the organism. If the organism is identified with the body, then the unwelcome spatial coincidence could perhaps be avoided. It is (...) argued that such an identification would be a mistake. A living organism has a different part/whole relationship and persistence conditions than the alleged body. A case will be made that the concept ‘human body’ is a conceptual mess, vague in an unprincipled manner, and that an eliminativist stance towards dead bodies is the appropriate response. CiteULike Connotea Del.icio.us What's this? (shrink)

One reason why the Biological Approach to personal identity is attractive is that it doesn’t make its advocates deny that they were each once a mindless fetus.[i] According to the Biological Approach, we are essentially organisms and exist as long as certain life processes continue. Since the Psychological Account of personal identity posits some mental traits as essential to our persistence, not only does it follow that we could not survive in a permanently vegetative state or irreversible coma, but it (...) would appear that none of us was ever a mindless fetus. But what happens to the organism that was a mindless fetus when the _person_ arrives on the scene?[ii] Can the acquisition of thought destroy an organism? That would certainly be news to biologists. Does one organism cease to exist with the emergence of thought and another organism, one identical to the person, take its place? (Burke,1994) That doesn’t seem much more plausible than the previous move. Should identity and Leibniz. (shrink)

Brain transplants and the dicephalus (an organism just like us except that it has two cerebrums) are thought to support the position that we are essentially thinking creatures, not living organisms. I try to offset the first of these intuitions by responding to thought experiments Peter Unger devised to show that identity is what matters. I then try to motivate an interpretation of the alleged conjoined twins as really just one person cut off from himself by relying upon what I (...) take will be the reader's disagreement with Locke's conjecture that a dreaming Socrates and an awake Socrates are two distinct people. (shrink)

Split brains that result in two simultaneous streams of consciousness cut off from each other are wrongly held to be grounds for doubting the existence of the divinely created soul. The mistake is based on two related errors: first, a failure to appreciate the soul's dependence upon neurological functioning; second, a fallacious belief that if the soul is simple, i.e. without parts, then there must be a unity to its thought, all of its thoughts being potentially accessible to reflection or (...) even unreflective causal interactions. But a soul theorist can allow neurological events to keep some conscious thoughts unavailable to others. (shrink)

Christian pro-lifers often respond to Thomson’s defense of abortion that the violinist is allowed to die while the embryo is killed. Boonin and McMahan counter that this distinction does not provide an objection to extraction abortions that disconnect embryos and allow them to die. I disagree. I first argue that letting die and killing are not to be distinguished by differences between acts and omissions, moral and immoral motives, intentional or unintentional deaths, and causing or not causing a pathology. I (...) offer a taxonomy in which hysterotomies turn out to be killings. I then argue that if either the placenta is considered an organ of the embryo or the embryo is construed as a part of the pregnant woman, then abortion pills kill rather than allow death. So, assuming that killing people is morally worse than letting them die, extraction abortions can be condemned to the same degree as other abortions. (shrink)

A philosopher argues that state-sponsored cyberattacks against central military or civilian targets are always acts of war. What is this philosopher doing? According to conceptual analysts, the philosopher is making a claim about our concept of war. According to philosophical realists, the philosopher is making a claim about war per se. In a quickly developing literature, a third option is being explored: the philosopher is engineering the concept of war. On this view, the philosopher is making a proposal about which (...) concept we should have – even if it deviates from the extant concept, and even if it does not capture ‘what war really is’. The activity or method of proposing such revisionary definitions, as well as the metaphilosophical reflection on it, has become known as conceptual engineering. (shrink)

Conceptual engineers aim to revise rather than describe our concepts. But what are concepts? And how does one engineer them? Answering these questions is of central importance for implementing and theorizing about conceptual engineering. This paper discusses and criticizes two influential views of this issue: semanticism, according to which conceptual engineers aim to change linguistic meanings, and psychologism, according to which conceptual engineers aim to change psychological structures. I argue that neither of these accounts can give us the full story. (...) Instead, I propose and defend the Dual Content View of Conceptual Engineering. On this view, conceptual engineering targets concepts, where concepts are understood as having two kinds of contents: referential content and cognitive content. I show that this view is independently plausible and that it gives us a comprehensive account of conceptual engineering that helps to make progress on some of the most difficult problems surrounding conceptual engineering. (shrink)

Biological individuality is a notoriously thorny topic for biologists and philosophers of biology. In this paper we argue that biological individuality presents multiple, interconnected questions for biologists and philosophers that together form a problem agenda. Using a case study of an interdisciplinary research group in ecology, behavioral and evolutionary biology, we claim that a debate on biological individuality that seeks to account for diverse practices in the biological sciences should be broadened to include and give prominence to questions about uniqueness (...) and temporality. We show that broadening the problem agenda of biological individuality draws attention to underrecognized philosophical issues and discussions and thereby organizes and enriches the existing debate. (shrink)

Does the Ship of Theseus present a genuine puzzle about persistence due to conflicting intuitions based on “continuity of form” and “continuity of matter” pulling in opposite directions? Philosophers are divided. Some claim that it presents a genuine puzzle but disagree over whether there is a solution. Others claim that there is no puzzle at all since the case has an obvious solution. To assess these proposals, we conducted a cross-cultural study involving nearly 3,000 people across twenty-two countries, speaking eighteen (...) different languages. Our results speak against the proposal that there is no puzzle at all and against the proposal that there is a puzzle but one that has no solution. Our results suggest that there are two criteria—“continuity of form” and “continuity of matter”— that constitute our concept of persistence and these two criteria receive different weightings in settling matters concerning persistence. (shrink)

We live, according to some, in the century of biology, where we now understand ourselves in radically new ways as the insights of genomics and neuroscience have opened up the workings of our bodies and our minds to new kinds of knowledge and intervention. Is a new figure of the human, and of the social, taking shape in the 21st century? With what consequences for the politics of life today? And with what implications, if any, for the social, cultural and (...) human sciences? These are the issues that are discussed in this article, which argues that a new relation is requred with the life sciences, beyond commentary and critique, if the social and human sciences are to revitalize themselves for the 21st century. (shrink)

A standard view in contemporary philosophy is that belief is involuntary, either as a matter of conceptual necessity or as a contingent fact of human psychology. We present seven experiments on patterns in ordinary folk-psychological judgments about belief. The results provide strong evidence that voluntary belief is conceptually possible and, granted minimal charitable assumptions about folk-psychological competence, provide some evidence that voluntary belief is psychologically possible. We also consider two hypotheses in an attempt to understand why many philosophers have been (...) tempted to view belief as involuntary: that belief is a prototype concept and that belief is a dual character concept. Altogether, our findings contribute to longstanding philosophical debates about the relationship between the will and the intellect, while also advancing scientific understanding of important social judgments. (shrink)

Carl Henrik Koch har i denne bog samlet en række af sine artikler om fremtrædende danske filosoffer. Med start ved Holberg i 1700-tallet arbejder Koch sig op gennem den danske filosofihistorie og strejfer blandt andre Eilchov, Sibbern, A.P. Adler, Brøchner og naturligvis mastodonterne Søren Kierkegaard og Georg Brandes. Bogen giver en hurtig, men spændende indførsel i en vigtig del af den danske kulturhistorie, som gennem de sidste 250 år har haft stor indflydelse både herhjemme og i udlandet.

Most people think it is wrong to take organs from the dead if the potential donors had previously expressed a wish not to donate. Yet people respond differently to a thought experiment that seems analogous in terms of moral relevance to taking organs without consent. We argue that our reaction to the thought experiment is most representative of our deepest moral convictions. We realize not everyone will be convinced by the conclusions we draw from our thought experiment. Therefore, we point (...) out that the state ignores consent in performing mandatory autopsies in some cases. If readers are willing to give up the permissibility of mandatory autopsies, we then offer some metaphysical arguments against posthumous harm. Drawing upon claims about bodies ceasing to exist at death and Epicurean-inspired arguments against posthumous interests, we make a case for an organ conscription policy which respects fundamental liberal principles of autonomy, bodily integrity, and property. (shrink)

Three eminent scientists analyze the scientific, social, and political roots of biological determinism.

Neuroscientists now approach some of the deepest problems of the human condition - from illnesses and disorders such as Alzheimer's disease and schizophrenia, to the search for the nature of consciousness itself - in the belief that their science can say something useful about these processes and how to intervene in them. At the same time, by addressing the biological mechanisms involved in phenomena as varied as street violence, drug addiction and sexual orientation, the new science raises profound ethical, legal, (...) social and medical questions. Over many of these issues there is no clear consensus but rather, intense debate. Is memory a molecular process? Is schizophrenia a genetic disorder? What does the future hold for psychopharmacology? Can consciousness be computed and is artificial intelligence a real prospect? From Brains to Consciousness? brings together fourteen of the world's leading neuroscientists, psychologists, computer modellers and philosophers, in a series of chapters that offer fascinating and up-to-the-minute insight into the debates that are taking place in this exciting area of research. (shrink)

This paper discusses the logical space of alternative conceptual engineering projects, with a specific focus on (1) the processes, (2) the targets and goals, and (3) the methods of such projects. We present an overview of how these three aspects interact in the contemporary literature and discuss those alternative projects that have yet to be explored based on our suggested typology. We show how choices about each element in a conceptual engineering project constrain the possibilities for the others, thereby giving (...) rise to distinct groupings of possible projects under the banner of conceptual engineering. We conclude with a critical reflection on the potential ethical issues that arise as a result of effectively putting conceptual engineering into practice. (shrink)