Different sort of people are interested in personal identity. Philosophers frequently ask what it takes to remain oneself. Caregivers imagine their patients’ experience. But both philosophers and caregivers think from the armchair: they can only make assumptions about what it would be like to wake up with massive bodily changes. Patients with a locked-in syndrome (LIS) suffer a full body paralysis without cognitive impairment. They can tell us what it is like. Forty-four chronic LIS patients and 20 age-matched healthy medical (...) professionals answered a 15-items questionnaire targeting: (A) global evaluation of identity, (B) body representation and (C) experienced meaning in life. In patients, selfreported identity was correlated with B and C. Patients differed with controls in C. These results suggest that the paralyzed body remains a strong component of patients’ experienced identity, that patients can adjust to objectives changes perceived as meaningful and that caregivers fail in predicting patients’ experience. (shrink)

Different sort of people are interested in personal identity. Philosophers frequently ask what it takes to remain oneself. Caregivers imagine their patients’ experience. But both philosophers and caregivers think from the armchair: they can only make assumptions about what it would be like to wake up with massive bodily changes. Patients with a locked-in syndrome suffer a full body paralysis without cognitive impairment. They can tell us what it is like. Forty-four chronic LIS patients and 20 age-matched healthy medical professionals (...) answered a 15-items questionnaire targeting: global evaluation of identity, body representation and experienced meaning in life. In patients, self-reported identity was correlated with B and C. Patients differed with controls in C. These results suggest that the paralyzed body remains a strong component of patients’ experienced identity, that patients can adjust to objectives changes perceived as meaningful and that caregivers fail in predicting patients’ experience. (shrink)

This essay examines the case for relativism about future contingents in light of a distinction between two ways of interpreting the ‘branching time’ framework. Focussing on MacFarlane (2014), we break the argument for relativism down into two steps. The first step is an argument for something MacFarlane calls the "Non-Determination Thesis", which is essentially the view that there is no unique actual future. The second step is an argument from the Non-Determination Thesis to relativism. I first argue that first step (...) of this argument fails. But despite that result, the second step is still of interest, since many philosophers have maintained something like the Non-Determination Thesis on alternative grounds. I then argue that whether the second step of the argument suc- ceeds depends on how the Non-Determination Thesis is motivated, and how the ‘branching time’ framework is interpreted in light of that moti- vation. If the branches in an intended branching time model are ersatz possible worlds, then the argument for relativism might go through; but if, instead, the branches are concrete parts of a ‘branching multiverse’, then the argument for relativism turns out to make implausible assumptions about the nature of personal identity over time. That argument can thus be rejected by rejecting those assumptions. One upshot of this is that the case for relativism about future contingents is much weaker than has been appreciated; a broader lesson is that philosophers who invoke the branching time framework need to pay close attention to different ways of interpreting it. (shrink)

Don Marquis has argued most abortions are immoral, for the same reason that killing you or me is immoral: abortion deprives the fetus of a valuable future. Call this account the FLOA. A rival account is Jeff McMahan’s, time-relative interest account of the wrongness of killing. According to this account, an act of killing is wrong to the extent that it deprives the victim of future value and the relation of psychological unity would have held between the victim at the (...) time of death and herself at a later time if she had lived. The TRIA supposedly has two chief advantages over Marquis’s FLOA. First, unlike the FLOA, the TRIA does not rely on the controversial thesis that identity is what matters in survival. Second, the TRIA yields more plausible verdicts about cases. Proponents of the TRIA use the account to argue that abortion is generally permissible, because there would be little to no psychological unity between the fetus and later selves if it lived. I argue that advocates of the TRIA have failed to establish its superiority to the FLOA, for two reasons. First, the two views are on a par with respect to the thesis that identity is what matters in survival. Second, Marquis’s FLOA does not yield the counterintuitive implications about cases that advocates of the TRIA have attributed to it, and the TRIA yields its own share of implausible judgments about cases. (shrink)

I will argue that accounts of mineness and pre-reflective self-awareness can be helpful to panpsychists in solving the combination problems. A common strategy in answering the subject combination problem in panpsychism is to deflate the subject, eliminating or reducing subjects to experience. Many modern panpsychist theories are deflationist or endorse deflationist accounts of subjects, such as Parfit’s reductionism of personal identity and G. Strawson’s identity view. To see if there can be deflation we need to understand what the subject/self is. (...) One aspect of consciousness left unexplored and unappreciated by panpsychist theories is pre-reflective self-consciousness/self-awareness. Theories of the self, inspired by phenomenology, that are serious about subjectivity, could be of use in arguing against the deflationary reductionism of the experiencing subject. These theories show that there is more to the subject of experience than just its experiences (qualities). Even without arguing for any precise account of the nature of the self, it can be shown what phenomenology of subjective character of consciousness and pre-reflective self-awareness contributes to the combination problem debate. (shrink)

The theory of personal identity should illuminate and be illuminated by the theory of personality, of which it is a part. I believe that Locke's theory succeeds in this more than that of any other great philosopher, and the modifications which it may need are not fundamental ones. The problems raised by Butler and Flew can be made to disappear.

Advance Directives are under-utilized, both from the fact that few Americans have them and that health professionals don’t always rely on Advance Directives provided by patients. Many health professionals have philosophical objections to their use. Using a fictitious case as background, five different objections to the use of Advance Directives will be discussed and arguments against those objections will be posed along with suggestions to improve Advance Directives.

The hypothesis of extended cognition (HEC), or the claim that cognitive processes are not entirely organism-bound and can extend into the world, has received a barrage of criticism. Likewise, defenders of HEC have responded and even retreated into more moderate positions. In this paper, I trace the debate, rehearsing what I take to be the three strongest cases against HEC: nonderived content, causally natural kinds, and informational integration. I then argue that so far, the replies have been unsatisfactory, mainly because (...) they rest on tacit assumptions about the nature of ?human organisms,? which are the very subjects in question. One such reply, Clark's (2008) recent hypothesis of organism-centered cognition (HOC), is shown to be a particularly hasty retreat, specifically in terms of tackling the issue of informational integration. Namely, my position is that Clark concedes too quickly that the organism is the ?chief executor? of this cognitive function and I claim this on the grounds that (1) not all human organisms integrate information in the way Weiskopf (2008) argues they do, and (2) it is not impossible for external tools to be an informationally integrative component of a ?systemic whole.? (shrink)

Lockean views of personal identity maintain that we are essentially persons who persist diachronically by virtue of being psychologically continuous with our former selves. In this article, I present a novel objection to this variant of psychological accounts, which is based on neurophysiological characteristics of the brain. While the mental states that constitute said psychological continuity reside in the cerebral hemispheres, so that for the former to persist only the upper brain must remain intact, being conscious additionally requires that a (...) structure originating in the brainstem—the ascending reticular activating system—be functional. Hence, there can be situations in which even small brainstem lesions render individuals irreversibly comatose and thus forever preclude access to their mental states, while the neural correlates of the states themselves are retained. In these situations, Lockeans are forced to regard as fulfilled their criterion of diachronic persistence since psychological continuity, as they construe it, is not disrupted. Deeming an entity that is never again going to have any mental experiences to be a person, however, is an untenable position for a psychological account to adopt. In their current form, Lockean views of personal identity are therefore incompatible with human neurophysiology. (shrink)

Good physical experiments conform to the basic methodological standards of experimental design: they are objective, reliable, and valid. But is this also true of thought experiments? Especially problems of personal identity have engendered hypothetical scenarios that are very distant from the actual world. These imagined situations have been conspicuously ineffective at resolving conflicting intuitions and deciding between the different accounts of personal identity. Using prominent examples from the literature, I argue that this is due to many of these thought experiments (...) not adhering to the methodological standards that guide experimental design in nearly all other disciplines. I also show how empirically unwarranted background assumptions about human physiology render some of the hypothetical scenarios that are employed in the debate about personal identity highly misleading. (shrink)

When an individual is comatose while parts of her brain remain functional, the question arises as to whether any mental characteristics are still associated with this brain, that is, whether the person still exists. Settling this uncertainty requires that one becomes clear about two issues: the type of functional loss that is associated with the respective profile of brain damage and the persistence conditions of persons. Medical case studies can answer the former question, but they are not concerned with the (...) latter. Conversely, in the philosophical literature, various accounts of personal identity are discussed, but usually detached from any empirical basis. Only uniting the two debates and interpreting the real-life configurations of brain damage through the lens of the philosophical concepts enables one to make an informed judgment regarding the persistence of comatose persons. Especially challenging are cases in which three mental characteristics that normally occur together—wakefulness, awareness and memory storage—come apart. These shall be the focus of this paper. (shrink)

Marya Schechtman argues that psychological continuity accounts of personal identity, as represented by Derek Parfit's account, fail to escape the circularity objection. She claims that Parfit's deployment of quasi-memory (and other quasi-psychological) states to escape circularity implicitly commit us to an implausible view of human psychology. Schechtman suggests that what is lacking here is a coherence condition, and that this is something essential in any account of personal identity. In response to this I argue first that circularity may be escaped (...) using quasi-psychological states even with the addition of the coherence condition. Second, I argue that there is something right about the coherence condition, and a major task of this paper is to identify its proper theoretical role. I do so by reflection on integration therapies for people with multiple personality disorder (MPD). The familiar distinction between the moral and the metaphysical concept of the person is developed alongside such reflection. Connecting these two issues I argue that coherence acts as a normative constraint on accounts of personal identity, but that the normative dimension of personhood is not essential to our notion of a person tout court. (shrink)

Current selves wield all the power in intertemporal tradeoffs. Although one set of future selves will make similar tradeoffs in the future, another self – who we term the cumulative future self – falls on the receiving end of those dictated decisions. How current selves commune with the cumulative future self determines whether the former heed pleas, from the latter, for patience.

The advantages and risks of a number of new genome modifying procedures seeking to create healthy or enhanced individuals, such as Maternal Spindle Transfer, Pronuclear Transfer, Cytoplasmic Transfer and Genome Editing, are currently being assessed from an ethical perspective, by national and international policy organizations. One important aspect being examined concerns the effects of these procedures on different kinds of identity. In other words, whether or not a procedure only modifies the qualities or properties of an existing human being, meaning (...) that merely the qualitative identity of this single individual is affected, or whether a procedure results in the creation of a new individual, meaning that a numerically distinct human being would have come into existence. In this article, the different identity arguments proposed, so far, are presented with respect to these novel reproductive procedures. An alternative view is then developed using the Origin Essentialism argument to indicate that any cha... (shrink)

Whether or not it is coherent to place hope in a future life beyond the grave has become a central question in the larger debate about whether a materialist view of human persons can accommodate Christian belief. Hud Hudson defends a four-dimensional account of resurrection in order to avoid persistent difficulties experienced by three-dimensionalist animalism. I present two difficulties unique to Hudson’s view. The first problem of counterpart hope is a manifestation of a general weakness of four-dimensional views to accommodate (...) adequately prudential concern about one’s future self. More significantly, the second problem of quasi hope demonstrates that even if a temporal parts view can accommodate the possibility of future resurrection it necessarily leaves human beings in the dark about their individual futures and thus incapable of hope. I conclude that whatever its merits in demonstrating the possibility of resurrection, four-dimensionalist materialism cannot accommodate veridical Christian hope. (shrink)

La logique intervient doublement dans les discussions sur l'identité personnelle. D'une part, certaines théories de l’identité personnelle ont été critiquées pour ne pas respecter les propriétés logiques de l’identité, d'autre part, l’identité personnelle a été présentée comme un contreexemple à Ia logique de l’identité, justifiant une révision radicale de celle-ci.Ainsi, Ia logique de l’identité est le garde fou des théories de l’identité personnelle et l’identité personnelle est Ia pierre d'achoppement de Ia théorie logique de l’identité.L’identité logique est caractérisée par le (...) fait d'être une relation d'équivalence, et par le principe de substitutivité. Or certaines situations comme par exemple les cas de dedoublement de personnalité, semblent déroger à ce principe. Si l'on peut dire que a et b sont le même homme mais pas Ia même personne, alors le principe, selon lequel si deux individus sont identiques ce qui est prédicable de l'un est prédicable de l'autre, ne s'applique plus. (shrink)

Locke is often thought to have introduced the topic of personal identity into philosophy when, in the second edition of theEssay,he distinguished the person from both the human being and the soul. Each of these entities differs from the others with respect to their identity conditions, and so they must be ontologically distinct. In particular, Locke claimed, a person cannot survive total memory loss, although a human being or a soul can.

Recently, Caterina Moruzzi has appealed to Ted Sider’s case for continuant exdurantism and the availability of a “parallel move” in musical ontology to promote a specific version of musical work exdurantism. In this article, I argue that her version of musical exdurantism undermines the prospects for making the parallel move, but I go on to sketch two alternatives that do not. In Section I, I outline apparent persistence-parallels between ordinary material objects and musical works. In Section II, I sketch a (...) transposable case for accepting continuant exdurantism. In Section III, I introduce Moruzzi’s exdurantism. In Section IV, I introduce her selected rivals—the type-token theory of Julian Dodd and an austere musical perdurantism due to Ben Caplan and Carl Matheson. In Section V, I argue that several of Moruzzi’s commitments undermine her motivation from the “parallel move.” In sections VI and VII, I sketch alternative versions of musical exdurantism that are better positioned to adopt the parallel move. (shrink)

Technological advancements have provided militaries with the possibility to enhance human performance and to provide soldiers with better warfighting capabilities. Though these technologies hold significant potential, their use is not without cost to the individual. This paper explores the complexities associated with using human cognitive enhancements in the military, focusing on how the _purpose and context_ of these technologies could potentially undermine a soldier’s ability to say no to these interventions. We focus on cognitive enhancements and their ability to also (...) enhance a soldier’s autonomy (i.e., autonomy-enhancing technologies). Through this lens, we explore situations that could potentially compel a soldier to accept such technologies and how this acceptance could impact rights to individual autonomy and informed consent within the military. In this examination, we highlight the contextual elements of vulnerability—institutional and differential vulnerability. In addition, we focus on scenarios in which a soldier’s right to say no to such enhancements can be diminished given the special nature of their work and the significance of making better moral decisions. We propose that though in some situations, a soldier may be compelled to accept said enhancements; with their right to say no diminished, it is not a blanket rule, and safeguards ought to be in place to ensure that autonomy and informed consent are not overridden. (shrink)

Advocates of occasional identity have two ways of interpreting putative cases of fission and fusion. One way—we call it the Creative view—takes fission to involve an object really dividing (or being replicated), thereby creating objects which would not otherwise have existed. The more ontologically parsimonious way takes fission to involve merely the ‘separation’ of objects that were identical before: strictly speaking, no object actually divides or is replicated, no new objects are created. In this paper we recommend the Creative approach (...) as the best way of dealing with certain problem cases involving teletransportation. Our considerations yield novel takes on psychological-continuity theories of personal identity and survival, and on the puzzle of Theseus' ship. (shrink)

David Lewis's cohabitation theory suffered damaging criticism from Derek Parfit. Though many have defended versions of Lewis's theory Parfit's criticism has not been answered. This paper shows how to defend the cohabitation theory against Parfit's criticism.

Deep brain stimulation is a well-accepted treatment for movement disorders and is currently explored as a treatment option for various neurological and psychiatric disorders. Several case studies suggest that DBS may, in some patients, influence mental states critical to personality to such an extent that it affects an individual’s personal identity, i.e. the experience of psychological continuity, of persisting through time as the same person. Without questioning the usefulness of DBS as a treatment option for various serious and treatment refractory (...) conditions, the potential of disruptions of psychological continuity raises a number of ethical and legal questions. An important question is that of legal responsibility if DBS induced changes in a patient’s personality result in damage caused by undesirable or even deviant behavior. Disruptions in psychological continuity can in some cases also have an effect on an individual’s mental competence. This capacity is necessary in order to obtain informed consent to start, continue or stop treatment, and it is therefore not only important from an ethical point of view but also has legal consequences. Taking the existing literature and the Dutch legal system as a starting point, the present paper discusses the implications of DBS induced disruptions in psychological continuity for a patient’s responsibility for action and competence of decision and raises a number of questions that need further research. (shrink)

1. What is the Problem of Personal Identity?Locke posed the problem of personal identity in one brief question, “What makes the same person?” This formulation is deceptively simple. My aim is to offer a new interpretation of the problem and to suggest a method for finding a solution.Investigations of personal identity are usually cast in terms of finding the criterion for personal identity. Yet talk of criteria is ambiguous. In one sense of the term, the criterion of personal identity would (...) be special evidence for personal identity. According to the second usage, the criterion of personal identity would be that state of affairs for which evidence for personal identity is evidence. We will not be concerned with the first construal. On that reading, the problem of personal identity would be an epistemological issue. But the basic question concerning personal identity, “What is one person?” does not appear to be an epistemological question. (shrink)

A person is biased toward the future when she prefers, other things being equal, bad events to be in her past rather than her future or good ones to be in her future rather than her past. In this paper, I explain why both critics and defenders of future bias have failed to consider the best version of the view. I distinguish external time from personal time, and show that future bias is best construed in terms of the latter. This (...) understanding of future bias avoids several standard objections. I then consider a new justification of future bias which is consistent with that construal. My discussion points to a new position regarding the basic relation that grounds rational egoistic concern over time, according to which that relation is asymmetric between person-stages. I also explain how this way of justifying future bias would resolve the apparent tension between the future bias we display in our own case and our relative indifference toward the timing of the good and bad things that happen to other people. (shrink)

Many people believe that the wrongness of killing a person does not depend on factors like her age, condition, or how much she has to lose by dying – a view Jeff McMahan calls the ‘Equal Wrongness Thesis’. This article argues that we should reject the Equal Wrongness Thesis on the basis of the moral equivalence between killing a person and knocking her unconscious.

Derek Parfit famously defends a number of surprising views about "fission." One is that, in such a scenario, it is indeterminate whether I have survived or not. Another is that the fission case shows that it does not matter, in itself, whether I survive or not. Most critics of the first view contend that fission makes me cease to exist. Most opponents of the second view contend that fission does not preserve everything that matters in ordinary survival. In this paper (...) I shall provide a critique that does not rely on either of these contentions. There are other, interrelated reasons to reject Parfit's defense of the two theses. In particular, the availability of the following view creates trouble for Parfit: I determinately survive fission, but it is indeterminate which fission product I am. (shrink)

This study deals specifically with one of the most relevant issues in neuro-ethics, namely the philosophical classification of so-called memory dampening, which refers to the attenuation of traumatic memories with the help of medication. Numerous neuroethical questions emerge from this issue. For example, how is a person’s identity affected by using such drugs? Does one still remain the same person? Would propranolol, for example, as a memory-dampening agent lead to a fundamental change in one’s identity? Are not a person’s negative (...) memories also part of their identity and present personality? These questions are examined from the perspective of the seventeenth-century Islamic philosopher, Mullā Ṣadrā. The goal is to shed light on the neuroethical foundations of memory dampening and personal identity from an Islamic philosophical perspective. (shrink)

Ordinary normative discourse includes talk about the reasons for action we had in the past but only came to discover in hindsight. In some cases, we come to discover these reasons not because new information has come to light, but because our values have changed. Contemporary metaethical views, namely Street's Humean constructivism and Blackburn's and Gibbard's quasi-realism, have some difficulty accounting for these reasons and the claims we make about them. This difficulty hinges on the diachronic complexity of these reasons (...) and claims. It cannot be the case that these reasons were constructed by the perspective we had in the past before our values changed. If there were no extant reasons in the past, then it would seem that our claims about them in the present cannot be true. Quasi-realists can account for the way in which reason claims purport to be true by appealing to a deflationary sense of truth and so can remain agnostic on the actual existence of these reasons. Nevertheless, Street argues that t.. (shrink)

Life, whatsoever it is, is a temporal flux. Everything is doomed to change often apparently beyond our awareness. My body appears totally different now, so does my mind. I have gained new attitudes and new ambitions, and a substantial number of old ones have been discarded. But, I am still the same person in an ongoing manner. Besides, recent neuroscientific and psychological evidence has shown that our conscious perception happens as a series of discrete or bounded instants—it emerges in temporally (...) scattered, gappy, and discrete forms. But, if it is so, how does the brain persevere our self-continuity in this gappy setting? How is it possible that despite moment-to-moment changes in my appearance and mind, I am still feeling that I am that person? How can we tackle with this second by second gap and resurrection in our existence which leads to a foundation of wholeness and continuity of our self? How is continuity of self that results in a feeling that one’s life has purpose and meaning preserved? To answer these questions, the problem has been comprehended from a philosophical, psychological, and neuroscientific perspective. I realize that first and foremost fact lies in the temporal nature of identity. Having equipped with these thoughts, in this article, it is hypothesized that according to two principles self-continuity is maintained. It is supposed that there should be a precise temporal integration mechanism in the CNS with the outside world that provides us this smooth, ungappy flow of the Self. However, we are often taken for granted the importance of self-continuity, but it can be challenged by life transitions such as entering adulthood, retirement, senility, emigration, and societal changes such as immigration, globalization, and in much unfortunate and extreme cases of mental illnesses such as schizophrenia. (shrink)

The theory of personal identity should illuminate and be illuminated by the theory of personality, of which it is a part. I believe that Locke's theory succeeds in this more than that of any other great philosopher, and the modifications which it may need are not fundamental ones. The problems raised by Butler and Flew can be made to disappear.

Journal Name: Apeiron Issue: Ahead of print.

Genetic information is becoming increasingly used in modern life, extending beyond medicine to familial history, forensics and more. Following this expansion of use, the effect of genetic information on people’s identity and ultimately people’s quality of life is being explored in a host of different disciplines. While a multidisciplinary approach is commendable and necessary, there is the potential for the multidisciplinarity to produce conceptual misconnection. That is, while experts in one field may understand their use of a term like ‘gene’, (...) ‘identity’ or ‘information’ for experts in another field, the same term may link to a distinctly different concept. These conceptual misconnections not only increase inefficiency in complex organisational practices, but can also have important ethical, legal and social consequences. This paper comes at the problem of conceptual misconnection by clarifying different uses of the terms ‘gene’, ‘identity’ and ‘information’. I start by looking at three different conceptions of the gene; the Instrumental, the Nominal and the Postgenomic Molecular. Secondly, a taxonomy of four different concepts of identity is presented; Numeric, Character, Group and Essentialised, and their use is clarified. A general concept of Information is introduced, and finally three distinct kinds of information are described. I then introduce Concept Creep as an ethical problem that arises from conceptual misconnections. The primary goal of this paper is to reduce the potential for conceptual misconnection when discussing genetic identity and genetic information. This is complimented by three secondary goals—1) to clarify what a conceptual misconnection is, 2) to explain why clarity of use is particularly important to discussions of genes, identity and information and 3) to show how concept creep between different uses of genetic identity and genetic information can have important ethical outcomes. (shrink)

People perceive that if their memories and moral beliefs changed, they would change. We investigated why individuals respond this way. In Study 1, participants judged that identity would change more after changes to memories and widely shared moral beliefs (e.g., about murder) versus preferences and controversial moral beliefs (e.g., about abortion). The extent to which participants judged that changes would affect their relationships predicted identity change (Study 2) and mediated the relationship between type of moral belief and perceived identity change (...) (Study 3). We discuss the role that social relationships play in judgments of identity and highlight implications for psychology and philosophy. (shrink)

Closest-continuer or best-candidate accounts of persistence seem deeply unsatisfactory, but it’s hard to say why. The standard criticism is that such accounts violate the ‘only a and b’ rule, but this criticism merely highlights a feature of the accounts without explaining why the feature is unacceptable. Another concern is that such accounts violate some principle about the supervenience of persistence facts upon local or intrinsic facts. But, again, we do not seem to have an independent justification for this supervenience claim. (...) Instead, I argue that closest continuer accounts are committed to unexplained correlations between distinct existences, and that this is their fundamental flaw. We can have independent justification for rejecting such correlations, but what the justification is depends upon much broader issues in ontology. There is no one-size-fits all objection to closest-continuer accounts of persistence. (shrink)

The defensibility of the extended mind thesis (EMT) is often thought to hinge on the possibility of extended selves. I argue that the self cannot extend and consider the ramifications of this finding, especially for EMT. After an overview of EMT and the supposed cruciality of the extended self to the defensibility of the former thesis, I outline several lines of argument in support of the possibility of extended selves. Each line of argument appeals to a different account of diachronic (...) personal identity. I argue that no such argument for extended selves succeeds, as no account of diachronic personal identity is both plausible and supports the view that the self can extend. Next, I consider three objections that, if successful, would undercut the preceding argument that the self cannot extend. I conclude by reflecting on the implications of the conclusion that the self cannot extend, including the prospects for EMT. (shrink)

This paper asks whether persistence can be a matter of convention. It argues that in a rather unexciting de dicto sense persistence is indeed a matter of convention, but it rejects the notion that persistence can be a matter of convention in a more substantial de re sense. However, scenarios can be imagined that appear to involve conventional persistence of the latter kind. Since there are strong reasons for thinking that such conventionality is impossible, it is desirable that our metaphysical-cum-semantic (...) theories of persistence be able to account for such scenarios in terms of conventions of the first kind. Later parts of the article therefore investigate whether three of the currently most influential metaphysical-cum-semantic theories of persistence—the endurance theory, the stage theory, and the perdurance theory—can do this. Fortunately, for them, it turns out that all can, though some philosophers have disputed this. However, when we ask how they account for a typical case of “conventional persistence” some problematic features of the theories—having to do with reference, persistence conditions, how they relate, and the epistemology of persistence—are revealed. (shrink)