Recent investigations and theorising about category-specific deficits have begun to focus upon patients with progressive brain disease such as semantic dementia and Alzheimer's disease. In this commentary we briefly review what insights have been gained from studying patients of this type. We concentrate on four specific issues: the sensory/functional distinction, correlation between features, neuroanatomical considerations, and confounding factors.

The extended Church-Turing thesis posits that any computable function can be calculated efficiently by a probabilistic Turing machine. If this thesis held true, the global effort to build quantum computers might ultimately be unnecessary. The thesis would however be strongly contradicted by a physical device that efficiently performs a task believed to be intractable for classical computers. BosonSampling - the sampling from a distribution of n photons undergoing some linear-optical process - is a recently developed, and experimentally accessible example of (...) such a task [1]. (shrink)

In his unpublished freewill manuscripts, Ralph Cudworth seeks to complete the project that he begins in The True Intellectual System of the Universe (1678) by arguing for an account of human liberty that avoids the opposing poles of necessitarianism and indifferency. I argue that Cudworth’s account rests upon a crucial distinction between the will and the power of freewill. Whereas we necessarily will the greater apparent good, freewill is a more fundamental power by which we endeavour to discern the (...) greater good before willing to pursue it. Cudworth thus opposes necessitarianism by arguing for a libertarian account of freewill while nonetheless rejecting the indifferentist claim that we can will contrary to the greater apparent good. (shrink)

Ralph Cudworth’s goal in his manuscript writings on freewill is to argue that our actions are in our own power in a robust sense that entails the ability to do otherwise. Cudworth’s unorthodox views about the nature of desire threaten to undermine this project, however. Cudworth maintains that only desire is able to distinguish good and evil and, consequently, that desire alone motivates our actions. Therefore, since Cudworth holds that desire itself is not in our own power, he appears (...) committed to the conclusion that our actions are not in our own power either. Cudworth’s solution, I argue, is to emphasize our inward responses to desire, which Cudworth does take to be in our own power. I focus in particular on attention: by directing attention differently in response to desire, Cudworth holds that we are able actively to influence the way in which desire motivates our actions. Our actions are in our own power, therefore, only because such inward responses to desire are in our own power. (shrink)

Henry More famously argues that all substances are extended, body and spirit alike. In The True Intellectual System of the Universe, More’s friend and fellow Cambridge Platonist Ralph Cudworth notes More’s position but refrains from criticizing it. By contrast, in a passage from one of Cudworth’s unpublished manuscripts that has escaped scholarly attention and that is included here as an appendix, Cudworth addresses More directly, raising objections against More’s view and responding to two of More’s arguments. My aim in (...) this paper is to provide a detailed analysis of Cudworth’s response to More in this passage. (shrink)

Ralph Cudworth’s The True Intellectual System of the Universe (1678) is credited with the first instance of the English word “consciousness” used in a distinctively philosophical sense. While Cudworth says little in the System about the nature of consciousness, he has more to say in his (largely unpublished) freewill manuscripts. I argue that, in these manuscripts, Cudworth distinguishes two kinds of consciousness, which I call “bare consciousness” and “reflective consciousness”. What both have in common is that each is a (...) kind of reflection or reflexive perception that therefore involves a “duplication” of the soul as both subject and object. While it is less clear how Cudworth takes these two kinds of consciousness to differ, I argue that the central difference for Cudworth is that, whereas bare consciousness is always directed towards individual cogitations, reflective consciousness is the kind of consciousness that the soul achieves through reflection upon itself as a whole. As a result, reflective consciousness introduces a unity into our experience that is not present at the level of bare consciousness. (shrink)

This book is a collection of secondary essays on America's most important philosophic thinkers—statesmen, judges, writers, educators, and activists—from the colonial period to the present. Each essay is a comprehensive introduction to the thought of a noted American on the fundamental meaning of the American regime.

We determine precisely those locally finite varieties of unary algebras of finite type which, when augmented by a ternary discriminator, generate a variety with a decidable theory.

To study how religiosity affects family business goals, we merge literatures on goal setting, temporal orientation, and family business to argue that family business goals can be distinguished into short-term and long-term orientations and propose that religiosity affects both orientations, but to varying degrees. Drawing on a sample of private U.S. family businesses and applying partial least squares structural equations modeling, we find tentative support that religiosity has a stronger positive effect on long-term goal orientation than on short-term goal orientation. (...) We discuss implications for theory development and future research involving religiosity and family business goals. (shrink)

To study how religiosity affects family business goals, we merge literatures on goal setting, temporal orientation, and family business to argue that family business goals can be distinguished into short-term and long-term orientations and propose that religiosity affects both orientations, but to varying degrees. Drawing on a sample of private U.S. family businesses and applying partial least squares structural equations modeling, we find tentative support that religiosity has a stronger positive effect on long-term goal orientation than on short-term goal orientation. (...) We discuss implications for theory development and future research involving religiosity and family business goals. (shrink)

Metamorphoses of the Zoo marshals a unique compendium of critical interventions that envision novel modes of authentic encounter that cultivate humanity's biophilic tendencies without abusing or degrading other animals. These take the form of radical restructurings of what were formerly zoos or map out entirely new, post-zoo sites or experiences. The result is a volume that contributes to moral progress on the inter-species front and eco-psychological health for a humankind whose habitats are now mostly citified or urbanizing.

Like philosophy itself, Dune explores everything from politics to art to life to reality, but above all, the novels ponder the mysteries of mind. Voyaging through psychic expanses, Frank Herbert hits upon some of the same insights discovered by indigenous people from the Americas. Many of these ideas are repeated in mainstream American and European philosophical traditions like pragmatism and existential phenomenology. These outlooks share a regard for mind as ecological, which is more or less to say that minds extend (...) beyond the brain into the rest of the body and the surrounding environment. -/- The cross-cultural strands in Dune tie closely to Herbert’s life and interests. An outdoorsman born in the Pacific West, he had an abiding bond with a friend from the Quileute tribe, Howie Hansen. Herbert advocated for aboriginal rights and crafted well-intentioned if slightly stereotypical tales about indigenous characters, partly based on his visits with Northwest tribes. Carl Jung (1875-1961), whose idea of collective consciousness echoes aboriginal views, was among Herbert’s European influences. So was existential phenomenology, especially as developed by Martin Heidegger (1889-1976). The names of characters in one of Herbert’s novels—The Santaroga Barrier—in fact coincide with terms that Heidegger used to articulate how emotionally colored coping with our environment defines our existence. Many indigenous philosophers have treated phenomenology and its American cousin pragmatism in approving ways. Indeed, the ideas of North America’s first inhabitants seem to have been absorbed by pragmatists and even earlier by transcendentalists like Ralph Waldo Emerson (1803-1882) and Henry David Thoreau (1817-1862). -/- These different philosophies all advance a place-based psychology. Anne Waters, herself of mixed tribal heritage, generalizes the mindset of her people this way: “American Indian consciousness, and hence American Indian identity is … interdependent with our land base.” Lee Hester, a Choctaw thinker, adds that practices—not mere beliefs—are most important for native thought. American transcendentalists and pragmatists, as well as European phenomenologists, similarly see hands-on practices and environmental interactions as the core of experience. Extending this a little, they sometimes suggest experience isn’t individual but instead cultural. “Culture” is here understood as interactions within communities that define our worlds and experiences, as when we talk about the “French experience,” “culture” or “world,” or the “experience of parenthood.” This theme also shows up in indigenous thought. -/- Exploring the Dune universe, we find everything from land-based concepts of personal identity, to the idea of sharpening the mind through hands-on training, to collective notions of experience in cooperative tribes or through the genetic memory of central characters. The stories explore fate versus free will in cosmic contexts, introducing views from indigenous thought and the pragmatic philosophy of William James (1842-1910). Different forms of spiritualism mingle to shape minds and cultural mixtures around the globe, and the same occurs in the Dune series. The customs and personalities of characters fuse elements from Buddhism, Christianity, Hinduism, Judaism, Taoism, and especially Islam. The series not only highlights that religion shapes psychology, but also that faith connects to place, especially paralleling Judeo-Christian-Islamic desert faiths. In capturing these points, the Dune novels show that “our values, our lifestyles and even the ways we think and feel have been strongly influenced by our locations in history and geography. The study of the human mind is fundamentally the study of place.”. (shrink)

Matthew H. Bowker offers a novel analysis of "experience": the vast and influential concept that has shaped Western social theory and political practice for the past half-millennium. While it is difficult to find a branch of modern thought, science, industry, or art that has not relied in some way on the notion of "experience" in defining its assumptions or aims, no study has yet applied a politically-conscious and psychologically-sensitive critique to the construct of experience. Doing so reveals that most (...) of the qualities that have been attributed to experience over the centuries — particularly its unthinkability, its correspondence with suffering, and its occlusion of the self — are part of unlikely fantasies or ideologies. By analyzing a series of related cases, including the experiential education movement, the ascendency of trauma theory, the philosophy of the social contract, and the psychological study of social isolation, the book builds a convincing case that ideologies of experience are invoked not to keep us close to lived realities and ‘things-in-themselves,’ but, rather, to distort and destroy true knowledge of ourselves and others. In spite of enduring admiration for those who may be called champions of experience, such as Michel de Montaigne, Ralph Waldo Emerson, and others treated throughout the work, the ideologies of experience ultimately discourage individuals and groups from creating, resisting, and changing our experience, urging us instead to embrace trauma, failure, deprivation, and self-abandonment. (shrink)

Reading Certainty offers incisive historical analysis of the foundational questions of the Christian tradition: how are we to read scripture, and how can we know we are saved? This collection of essays honors the work and thought Susan E. Schreiner by exploring the import of these questions across a wide range of time periods. With contributions from renowned scholars and from Schreiner's students from her more than three decades of teaching, each of the contributions highlights the nexus of certainty, perception, (...) authority, and exegesis that has defined her scholarly work. Intellectual historians, early modernists, and scholars of Christianity will all appreciate this testament to Schreiner's influence. Contributors include: Vincent Evener, Bruce Gordon, Ralph Keen, Mark Lambert, Kevin J. Madigan, Richard A. Muller, Willemien Otten, Daniel Owings, Elizabeth Palmer, Karen Park, Barbara Pitkin, Ronald K. Rittgers, William Schweiker, Jonathan Strom, and Matthew Vanderpoel. (shrink)

Bradd Hart, Matthew Valeriote, A Structure Theorem for Strongly Abelian Varieties with Few Models.Bradd Hart, Sergei Starchenko, Addendum to "A Structure Theorem for Strongly Abelian Varieties.".Bradd Hart, Sergei Starchenko, Matthew Valeriote, Vaught's Conjecture for Varieties.B. Hart, S. Starchenko, Superstable Quasi-Varieties.B. Hart, A. Pillay, S. Starchenko, Triviality, NDOP and Stable Varieties.

In his article, ‘Recovering Humanity: Movement, Sport, and Nature’, Doug Anderson addresses the place of endurance sport, or more generally sport at large, as a potential catalyst for the good life. Anderson contrasts transcendental themes of Henry David Thoreau and Ralph Waldo Emerson with the pragmatic claims of William James and John Dewey, who focus on human possibility and growth. Our aim is to pursue the pragmatic line of thought championed by James and Dewey as a contrasting but not (...) mutually exclusive motive to Anderson’s analysis. We contend that movement can provide humanizing possibilities even more pronounced for those subscribing to pragmatic themes (i.e., growth and the strenuous mood). We will use running and cycling to demonstrate how the strenuous mood enhances the possibility for this humanizing condition. Specifically, we argue that moving in a committed fashion allows us to deepen our relationship with the respective practice and thus opens the possibilities for ‘recovering our humanity’. (shrink)

Surprisingly little has been written about hedged assertion. Linguists often focus on semantic or syntactic theorizing about, for example, grammatical evidentials or epistemic modals, but pay far less attention to what hedging does at the level of action. By contrast, philosophers have focused extensively on normative issues regarding what epistemic position is required for proper assertion, yet they have almost exclusively considered unqualified declaratives. This essay considers the linguistic and normative issues side-by-side. We aim to bring some order and clarity (...) to thinking about hedging, so as to illuminate aspects of interest to both linguists and philosophers. In particular, we consider three broad questions. 1) The structural question: when one hedges, what is the speaker’s commitment weakened from? 2) The functional question: what is the best way to understand how a hedge weakens? And 3) the taxonomic question: are hedged assertions genuine assertions, another speech act, or what? (shrink)

Encyclopedia entry covering the growing literature on the Knowledge Norm of Assertion (and its rivals), the Knowledge Norm of Action (and pragmatic encroachment), the Knowledge Norm of Belief, and the Knowledge Norm of Disagreement.

The problem of evil is the most prominent argument against the existence of God. Skeptical theists contend that it is not a good argument. Their reasons for this contention vary widely, involving such notions as CORNEA, epistemic appearances, 'gratuitous' evils, 'levering' evidence, and the representativeness of goods. We aim to dispel some confusions about these notions, in particular by clarifying their roles within a probabilistic epistemology. In addition, we develop new responses to the problem of evil from both the phenomenal (...) conception of evidence and the knowledge-first view of evidence. (shrink)

Hope, in its propositional construction "I hope that p," is compatible with a stated chance for the speaker that not-p. On fallibilist construals of knowledge, knowledge is compatible with a chance of being wrong, such that one can know that p even though there is an epistemic chance for one that not-p. But self-ascriptions of propositional hope that p seem to be incompatible, in some sense, with self-ascriptions of knowing whether p. Data from conjoining hope self-ascription with outright assertions, with (...) first- and third-person knowledge ascriptions, and with factive predicates suggest a problem: when combined with a plausible principle on the rationality of hope, they suggest that fallibilism is false. By contrast, the infallibilist about knowledge can straightforwardly explain why knowledge would be incompatible with hope, and can offer a simple and unified explanation of all the linguistic data introduced here. This suggests that fallibilists bear an explanatory burden which has been hitherto overlooked. (shrink)

What is the relationship between lying, belief, and knowledge? Prominent accounts of lying define it in terms of belief, namely telling someone something one believes to be false, often with the intent to deceive. This paper develops a novel account of lying by deriving evaluative dimensions of responsibility from the knowledge norm of assertion. Lies are best understood as special cases of vicious assertion; lying is the anti-paradigm of proper assertion. This enables an account of lying in terms of knowledge: (...) roughly, lying is telling someone something you know ain't so. (shrink)

Hope is an attitude with a distinctive epistemological dimension: it is incompatible with knowledge. This chapter examines hope as it relates to knowledge but also to probability and inductive considerations. Such epistemic constraints can make hope either impossible, or, when hope remains possible, they affect how one’s epistemic situation can make hope rational rather than irrational. Such issues are especially relevant to when hopefulness may permissibly figure in practical deliberation over a course of action. So I consider cases of second-order (...) inductive reflection on when one should, or should not, be hopeful for an outcome with which one has a long record of experience: in other words, what is the epistemology behind when one should, if ever, stop hoping for outcomes which have failed one many times in the past? (shrink)

What is it to know someone? Epistemologists rarely take up this question, though recent developments make such inquiry possible and desirable. This paper advances an account of how such interpersonal knowledge goes beyond mere propositional and qualitative knowledge about someone, giving a central place to second-personal treatment. It examines what such knowledge requires, and what makes it distinctive within epistemology as well as socially. It assesses its theoretic value for several issues in moral psychology, epistemic injustice, and philosophy of mind. (...) And it offers an account of the complex content in play if interpersonal knowledge is to be understood in terms of its mental states and their functions. (shrink)

Recent epistemology has focused almost exclusively on propositional knowledge. This paper considers an underexplored area of epistemology, namely knowledge of persons: if propositional knowledge is a state of mind, consisting in a subject's attitude to a (true) proposition, the account developed here thinks of interpersonal knowledge as a state of minds, involving a subject's attitude to another (existing) subject. This kind of knowledge is distinct from propositional knowledge, but it exhibits a gradability characteristic of context-sensitivity, and admits of shifty thresholds. (...) It is supported by a wide range of unexplored linguistic data and intuitive cases; and it promises to illuminate debates within epistemology, philosophy of religion, and ethics. (shrink)

Some philosophers oppose recent arguments for the Knowledge Norm of Assertion by claiming that assertion, being an act much like any other, will be subject to norms governing acts generally, such as those articulated by Grice for the purpose of successful, cooperative endeavours. But in fact, Grice is a traitor to their cause; or rather, they are his dissenters, not his disciples. Drawing on Grice's unpublished papers, I show that he thought of asserting as a special linguistic act in need (...) of its own norm, and he tied his maxim of Quality to knowledge. I also develop a simple Gricean-inspired argument showing that the Quality maxim is not dependent on the Cooperative Principle. If it is not thus dependent, then the Cooperative Principle cannot be the explanation of, or source of normativity for, the Quality maxim. Thus, leveraging the insights informing the maxim of Quality actually provides the resources for a distinctive positive case that knowledge is the constitutive norm of assertion. (shrink)

This book examines a main theme in religious epistemology, namely, the possibility of knowledge of God. Most often philosophers consider the rationality or justification of propositional belief about God, particularly beliefs about the existence and nature of God; and they will assess the conditions under which, if there is a God, such propositional beliefs would be knowledge, particularly in light of counter-evidence or the availability of religious disagreement. This book surveys such familiar areas, then turns toward newer and less-developed terrain: (...) interpersonal epistemology, namely what it is to know another person. It then explores the prospects for understanding what it might take to know God relationally, the contours of which are significant for many theistic traditions. (shrink)

If knowledge is sensitive to practical stakes, then whether one knows depends in part on the practical costs of being wrong. When considering religious belief, the practical costs of being wrong about theism may differ dramatically between the theist (if there is no God) and the atheist (if there is a God). This paper explores the prospects, on pragmatic encroachment, for knowledge of theism (even if true) and of atheism (even if true), given two types of practical costs: namely, by (...) holding a false belief, or by missing out on a true belief. These considerations set up a more general puzzle of epistemic preference when faced with the choice between two beliefs, only one of which could become knowledge. (shrink)

This chapter covers contemporary work on disagreement, detailing both the conceptual and normative issues in play in the debates in mainstream analytic epistemology, and how these relate to religious diversity and disagreement. §1 examines several sorts of disagreement, and considers several epistemological issues: in particular, what range of attitudes a body of evidence can support, how to understand higher-order evidence, and who counts as an epistemic “peer”. §2 considers how these questions surface when considering disagreements over religion, including debates over (...) the nature of evidence and truth in religion, epistemic humility, concerns about irrelevant influences and about divine hiddenness, and arguments over exclusivism, inclusivism, and pluralism. Finally, §3 summarizes the contributors’ essays in this volume. (shrink)

Assertion is governed by an epistemic norm requiring knowledge. This idea has been hotly debated in recent years, garnering attention in epistemology, philosophy of language, and linguistics. This chapter presents and extends the main arguments in favor of the knowledge norm, from faulty conjunctions, several conversational patterns, judgments of permission, excuse, and blame, and from showing how. (Paired with a chapter by Peter J. Graham and Nikolaj J. L. L. Pedersen, "Knowledge is Not Our Norm of Assertion.").

Recent epistemology offers an account of what it is to know other persons. Such views hold promise for illuminating several issues in philosophy of religion, and for advancing a distinctive approach to religious epistemology. This paper develops an account of interpersonal knowledge, and clarifies its relation to propositional and qualitative knowledge. I then turn to our knowledge of God and God's knowledge of us, and compare my account of interpersonal knowledge with important work by Eleonore Stump on "Franciscan" knowledge. I (...) examine how interpersonal knowledge may figure in liturgical practice, in diffusing the problem of divine hiddenness, and in motivating a novel understanding of divine love. I also explore the possibility of epistemic injustice arising from dismissal or neglect of our religious testimony to one another, or of divine testimony to humanity, focusing specifically on the import of interpersonal knowledge. (shrink)

Expert testimony figures in recent debates over how best to understand the norm of assertion and the domain-specific epistemic expectations placed on testifiers. Cases of experts asserting with only isolated second-hand knowledge (Lackey 2011, 2013) have been used to shed light on whether knowledge is sufficient for epistemically permissible assertion. I argue that relying on such cases of expert testimony introduces several problems concerning how we understand expert knowledge, and the sharing of such knowledge through testimony. Refinements are needed to (...) clarify exactly what principles are being tested by such cases; but once refined, such cases raise more questions than they answer. (shrink)

Traditional definitions of lying require that a speaker believe that what she asserts is false. Sam Fox Krauss seeks to jettison the traditional belief requirement in favour of a necessary condition given in a credence-accuracy framework, on which the liar expects to impose the risk of increased inaccuracy on the hearer. He argues that this necessary condition importantly captures nearby cases as lies which the traditional view neglects. I argue, however, that Krauss's own account suffers from an identical drawback of (...) being unable to explain nearby cases; and even worse, that account fails to distinguish cases of telling lies from cases of telling the truth. (shrink)

Recent decades have seen a fertile period of theorizing within mainstream epistemology which has had a dramatic impact on how epistemology is done. Investigations into contextualist and pragmatic dimensions of knowledge suggest radically new ways of meeting skeptical challenges and of understanding the relation between the epistemological and practical environment. New insights from social epistemology and formal epistemology about defeat, testimony, a priority, probability, and the nature of evidence all have a potentially revolutionary effect on how we understand our epistemological (...) place in the world. Religion is the place where such rethinking can potentially have its deepest impact and importance. Yet there has been surprisingly little infiltration of these new ideas into philosophy of religion and the epistemology of religious belief. -/- Knowledge, Belief, and God incorporates these myriad new developments in mainstream epistemology, and extends these developments to questions and arguments in religious epistemology. The investigations proposed in this volume offer substantial new life, breadth, and sophistication to issues in the philosophy of religion and analytic theology. They pose original questions and shed new light on long-standing issues in religious epistemology; and these developments will in turn generate contributions to epistemology itself, since religious belief provides a vital testing ground for recent epistemological ideas. (shrink)

What individuates the speech act of prediction? The standard view is that prediction is individuated by the fact that it is the unique speech act that requires future-directed content. We argue against this view and two successor views. We then lay out several other potential strategies for individuating prediction, including the sort of view we favor. We suggest that prediction is individuated normatively and has a special connection to the epistemic standards of expectation. In the process, we advocate some constraints (...) that we think a good theory of prediction should respect. (shrink)

Epistemological questions about the significance of disagreement have advanced in concert with broader developments in social epistemology concerning testimony, the nature of expertise and epistemic authority, the role of institutions, group belief, and epistemic injustice (among others). During this period, related issues in the epistemology of religion have reemerged as worthy of new consideration, and available to be situated with new conceptual tools. This volume explores many of the issues at the intersection of the epistemology of disagreement and religious epistemology: (...) in particular, how to think carefully about religious diversity and disagreement, balancing epistemic humility with personal conviction, the place of religious belief in our social lives, and how best to think about truths concerning religion. (shrink)

Epistemologists focus primarily on cases of knowledge, belief, or credence where the evidence which one possesses, or on which one is relying, plays a fundamental role in the epistemic or normative status of one's doxastic state. Recent work in epistemology goes beyond the evidence one possesses to consider the relevance for such statuses of evidence which one does not possess, particularly when there is a sense in which one should have had some evidence. I focus here on Sanford Goldberg's approach (...) ("Should Have Known," Synthese, forthcoming; and "On the Epistemic Significance of Evidence You Should Have Had," Episteme 2016, this issue); but the discussion will interest anyone working on epistemic defeat. (shrink)

Epistemologists have shown increased interest in the epistemic significance of disagreement, and in particular, in whether there is a rational requirement concerning belief revision in the face of peer disagreement. This article examines some of the general issues discussed by epistemologists, and then considers how they may or may not apply to the case of religious disagreement, both within religious traditions and between religious (and non-religious) views.

Artificial moral agents raise complex ethical questions both in terms of the potential decisions they may make as well as the inputs that create their cognitive architecture. There are multiple differences between human and artificial cognition which create potential barriers for artificial moral agency, at least as understood anthropocentrically and it is unclear that artificial moral agents should emulate human cognition and decision-making. It is conceptually possible for artificial moral agency to emerge that reflects alternative ethical methodologies without creating ontological (...) challenges or existential crises for human moral agents. (shrink)

Linda Zagzebski's "Epistemic Authority" (Oxford University Press, 2012) brings together issues in social epistemology with topics in moral and political philosophy as well as philosophy of religion. In this paper I criticize her discussion of self-trust and rationality, which sets up the main argument of the book; I consider how her view of authority relates to some issues of epistemic authority in testimony; and I raise some concerns about her treatment of religious epistemology and religious authority in particular.

The lottery and preface paradoxes pose puzzles in epistemology concerning how to think about the norms of reasonable or permissible belief. Contextualists in epistemology have focused on knowledge ascriptions, attempting to capture a set of judgments about knowledge ascriptions and denials in a variety of contexts (including those involving lottery beliefs and the principles of closure). This article surveys some contextualist approaches to handling issues raised by the lottery and preface, while also considering some of the difficulties encountered by those (...) approaches. (shrink)