I argue that the most promising approach to understanding J.J. Gibson's "affordances" takes affordances themselves as ontological primitives, instead of treating them as dispositional properties of more primitive things, events, surfaces, or substances. These latter are best treated as coalescences of affordances present in the environment (or "coalescences of use-potential," as in Sanders (1994) and Hilditch (1995)). On this view, even the ecological approach's stress on the complementary organism/environment pair is seen as expressing a particular affordance relation between the (...) world and the analyst. That the world is parsed in any way among events and objects, perceivers and worlds, etc., reflects equally features of certain real or possible perspectives on the world and features of the world itself. In section 1, I begin by contending that, contrary to the apparent expectations of some in the field, the bare existence of affordances is surely quite uncontroversial. In section 2, I argue that the most reasonable approach to foundational ontology is a relativistic one. In section 3, I address the claim that affordances must be ontologically complemented by effectivities for the sake of completeness, and I shall argue against that claim on grounds that I take to reflect some of Gibson's most important insights. This work will help to clarify the way affordances are to be used in the fourth and final section, where I argue that ontological work, even within special sciences, should not be merely "regional," and that the most attractive general approach to ontological questions is one that is based on affordances, rather than upon things, events, surfaces, and the like. (shrink)
Artificial agents (AAs), particularly but not only those in Cyberspace, extend the class of entities that can be involved in moral situations. For they can be conceived of as moral patients (as entities that can be acted upon for good or evil) and also as moral agents (as entities that can perform actions, again for good or evil). In this paper, we clarify the concept of agent and go on to separate the concerns of morality and responsibility of agents (most (...) interestingly for us, of AAs). We conclude that there is substantial and important scope, particularly in Computer Ethics, for the concept of moral agent not necessarily exhibiting free will, mental states or responsibility. This complements the more traditional approach, common at least since Montaigne and Descartes, which considers whether or not (artificial) agents have mental states, feelings, emotions and so on. By focussing directly on mind-less morality we are able to avoid that question and also many of the concerns of Artificial Intelligence. A vital component in our approach is the Method of Abstraction for analysing the level of abstraction (LoA) at which an agent is considered to act. The LoA is determined by the way in which one chooses to describe, analyse and discuss a system and its context. The Method of Abstraction is explained in terms of an interface or set of features or observables at a given LoA. Agenthood, and in particular moral agenthood, depends on a LoA. Our guidelines for agenthood are: interactivity (response to stimulus by change of state), autonomy (ability to change state without stimulus) and adaptability (ability to change the transition rules by which state is changed) at a given LoA. Morality may be thought of as a threshold defined on the observables in the interface determining the LoA under consideration. An agent is morally good if its actions all respect that threshold; and it is morally evil if some action violates it. That view is particularly informative when the agent constitutes a software or digital system, and the observables are numerical. Finally we review the consequences for Computer Ethics of our approach. In conclusion, this approach facilitates the discussion of the morality of agents not only in Cyberspace but also in the biosphere, where animals can be considered moral agents without their having to display free will, emotions or mental states, and in social contexts, where systems like organizations can play the role of moral agents. The primary cost of this facility is the extension of the class of agents and moral agents to embrace AAs. (shrink)
Against David Schenck's interpretation, I argue that it is not absolutely clear that Merleau-Ponty ever meant to replace what Schenck refers to as the "unity of meanings" interpretation of "structure" with a "material meanings" interpretation. A particular problem-setting -- for example, an attempt to understand the "truth in naturalism" or the "truth in dualism" -- may very well require a particular mode of expression. I argue that the mode of expression chosen by Merleau-Ponty for these purposes, while unfortunate in some (...) of its apparent implications, need not be interpreted as recommitting him to the doctrine he spent his life working to renounce. I have argued that this would have been clearer had he been able to avail himself of James J. Gibson's notion of affordances, which capture perfectly what he was reaching for. (shrink)
The paper provides a critical review of thedebate on the foundations of Computer Ethics(CE). Starting from a discussion of Moor'sclassic interpretation of the need for CEcaused by a policy and conceptual vacuum, fivepositions in the literature are identified anddiscussed: the ``no resolution approach'',according to which CE can have no foundation;the professional approach, according to whichCE is solely a professional ethics; the radicalapproach, according to which CE deals withabsolutely unique issues, in need of a uniqueapproach; the conservative approach, accordingto which CE (...) is only a particular appliedethics, discussing new species of traditionalmoral issues; and the innovative approach,according to which theoretical CE can expandthe metaethical discourse with a substantiallynew perspective. In the course of the analysis,it is argued that, although CE issues are notuncontroversially unique, they are sufficientlynovel to render inadequate the adoption ofstandard macroethics, such as Utilitarianismand Deontologism, as the foundation of CE andhence to prompt the search for a robust ethicaltheory. Information Ethics (IE) is proposed forthat theory, as the satisfactory foundation forCE. IE is characterised as a biologicallyunbiased extension of environmental ethics,based on the concepts of information object/infosphere/entropy rather thanlife/ecosystem/pain. In light of the discussionprovided in this paper, it is suggested that CEis worthy of independent study because itrequires its own application-specific knowledgeand is capable of supporting a methodologicalfoundation, IE. (shrink)
Moral reasoning traditionally distinguishes two types of evil:moral (ME) and natural (NE). The standard view is that ME is theproduct of human agency and so includes phenomena such as war,torture and psychological cruelty; that NE is the product ofnonhuman agency, and so includes natural disasters such asearthquakes, floods, disease and famine; and finally, that morecomplex cases are appropriately analysed as a combination of MEand NE. Recently, as a result of developments in autonomousagents in cyberspace, a new class of interesting and (...) importantexamples of hybrid evil has come to light. In this paper, it iscalled artificial evil (AE) and a case is made for considering itto complement ME and NE to produce a more adequate taxonomy. Byisolating the features that have led to the appearance of AE,cyberspace is characterised as a self-contained environment thatforms the essential component in any foundation of the emergingfield of Computer Ethics (CE). It is argued that this goes someway towards providing a methodological explanation of whycyberspace is central to so many of CE's concerns; and it isshown how notions of good and evil can be formulated incyberspace. Of considerable interest is how the propensity for anagent's action to be morally good or evil can be determined evenin the absence of biologically sentient participants and thusallows artificial agents not only to perpetrate evil (and forthat matter good) but conversely to `receive' or `suffer from'it. The thesis defended is that the notion of entropy structure,which encapsulates human value judgement concerning cyberspace ina formal mathematical definition, is sufficient to achieve thispurpose and, moreover, that the concept of AE can be determinedformally, by mathematical methods. A consequence of this approachis that the debate on whether CE should be considered unique, andhence developed as a Macroethics, may be viewed, constructively,in an alternative manner. The case is made that whilst CE issuesare not uncontroversially unique, they are sufficiently novel torender inadequate the approach of standard Macroethics such asUtilitarianism and Deontologism and hence to prompt the searchfor a robust ethical theory that can deal with them successfully.The name Information Ethics (IE) is proposed for that theory. Itis argued that the uniqueness of IE is justified by its beingnon-biologically biased and patient-oriented: IE is anEnvironmental Macroethics based on the concept of data entityrather than life. It follows that the novelty of CE issues suchas AE can be appreciated properly because IE provides a newperspective (though not vice versa). In light of the discussionprovided in this paper, it is concluded that Computer Ethics isworthy of independent study because it requires its ownapplication-specific knowledge and is capable of supporting amethodological foundation, Information Ethics. (shrink)
Interest in "embodiment", and over how one may best express the implications of embodiment, is no parochial question, of interest only to a small number of effete philosophers. It confronts perceptual psychologists, developmental psychologists, and psychotherapists, of course. It may not be surprising, either, that it has become an important issue to some students of history and sociology, and to linguists, literary theorists and aestheticians. But that's not all. As physicists -- working within the very bastion of "objective" analysis -- (...) have tried to find expression for what seems to be going on in the domain of sub-atomic nature, they have begun to suggest that physical description itself is inevitably situated. And within the study of artificial intelligence, support is growing for the contention that intelligence cannot be understood entirely formalistically. Intelligence must at least be embodied -- it must somehow display "engaged agency" -- if it is to be recognizable as intelligence. It is within this context that the contribution offered by this essay must be understood. I shall contend that a particular conception -- that of "affordances" -- can, when suitably qualified, offer a conceptual tool of quite exceptional value in the construction of a positive theory of embodied agency, and of its philosophical consequences. (shrink)
Harry Heft's Ecological Psychology in Context is an important book in many ways. For one thing, it adds considerably to our understanding of the historical background of J.J. Gibson's thought. But more than that, Heft aims to place ecological psychology not just historically, but philosophically. He says "This volume shows that radical empiricism stands at the heart of Gibson's ecological program, and it can usefully be employed as the conceptual centerpiece for ecological psychology more broadly construed" (p. xvi). While I (...) was impressed with Harry's argument to this effect, I'm not yet entirely persuaded. In these brief remarks I'll try to explain why. (shrink)
While there are numerous differences between the approaches taken by Maurice Merleau-Ponty and James J. Gibson, the basic motivation of the two thinkers, as well as the internal logic of their respective views, is extraordinarily close. Both were guided throughout their lives by an attempt to overcome the dualism of subject and object, and both devoted considerable attention to their "Gestaltist" predecessors. There can be no doubt but that it is largely because of this common cause that the subsequent development (...) of their ideas is so similar. It is not my objective in what follows merely to demonstrate a similarity between two lines of thought. Instead, I will try to show that each approach gains considerably from attention to the other. There are numerous ways to begin such a project, each about as arbitrary as the next. For present purposes, I shall take as of central importance the question of the character of the perceived world, both in relation to the traditionally opposed mental and material "substances", and in relation to its identification and individuation of things vis a vis one another and vis a vis ourselves. This will implicate especially Gibson's "affordances" and Merleau-Ponty's thesis concerning the "materiality of meaning.". (shrink)
Partly in reply to D. Cannon’s critique of my analytical reconstruction of Polanyi’s post-critical theory of knowledge, I argue that there are good reasons for not appropriating Polanyi’s programme of self-identication and the confessional rhetoric which may be derived from it. Arguing that “post-critical”should not be identified with an uncritical dogmatism, I then go on to suggest that the theory of tacit knowing had best be elaborated further by drawingon the work of J. Searle and M. Johnson. Finally, I make (...) use of E. Meek’s account of the notion of “contact with reality”to highlight the Polanyian criteria of truth. (shrink)
In the first book-length study of American philosophy at the turn of the century, Daniel J. Wilson traces the formation of philosophy as an academic discipline. Wilson shows how the rise of the natural and physical sciences at the end of the nineteenth century precipitated a "crisis of confidence" among philosophers as to the role of their discipline. Deftly tracing the ways in which philosophers sought to incorporate scientific values and methods into their outlook and to redefine philosophy itself, Wilson (...) moves between close analysis of philosophical texts and consideration of professional careers of illustrative philosophers, such as Charles Sanders Peirce, John Dewey, and Josiah Royce. The author situates the emergence of professional philosophy in the context of the professionalization of American higher education and articulates, in the case of philosophy, the structures and values of a professional discipline. One of the most important consequences of this transformation was a new emphasis on communal theories of truth. Peirce, Dewey, and Royce all developed sophisticated and important theories of community as they were engaged in reshaping and redefining the limits of philosophy. This book will be of great importance for those interested in the history of philosophy, the rise of professions, and American intellectual and educational history, and to all those seeking to understand the contemporary revival of pragmatic thought and theories of community. (shrink)
In their important paper “Autonomous Agents”, Floridi and Sanders use “levels of abstraction” to argue that computers are or may soon be moral agents. In this paper we use the same levels of abstraction to illuminate differences between human moral agents and computers. In their paper, Floridi and Sanders contributed definitions of autonomy, moral accountability and responsibility, but they have not explored deeply some essential questions that need to be answered by computer scientists who design artificial agents. One (...) such question is, “Can an artificial agent that changes its own programming become so autonomous that the original designer is no longer responsible for the behavior of the artificial agent?” To explore this question, we distinguish between LoA1 (the user view) and LoA2 (the designer view) by exploring the concepts of unmodifiable, modifiable and fully modifiable tables that control artificial agents. We demonstrate that an agent with an unmodifiable table, when viewed at LoA2, distinguishes an artificial agent from a human one. This distinction supports our first counter-claim to Floridi and Sanders, namely, that such an agent is not a moral agent, and the designer bears full responsibility for its behavior. We also demonstrate that even if there is an artificial agent with a fully modifiable table capable of learning* and intentionality* that meets the conditions set by Floridi and Sanders for ascribing moral agency to an artificial agent, the designer retains strong moral responsibility. (shrink)
In their important paper “Autonomous Agents”, Floridi and Sanders use “levels of abstraction” to argue that computers are or may soon be moral agents. In this paper we use the same levels of abstraction to illuminate differences between human moral agents and computers. In their paper, Floridi and Sanders contributed definitions of autonomy, moral accountability and responsibility, but they have not explored deeply some essential questions that need to be answered by computer scientists who design artificial agents. One (...) such question is, “Can an artificial agent that changes its own programming become so autonomous that the original designer is no longer responsible for the behavior of the artificial agent?” To explore this question, we distinguish between LoA1 (the user view) and LoA2 (the designer view) by exploring the concepts of unmodifiable, modifiable and fully modifiable tables that control artificial agents. We demonstrate that an agent with an unmodifiable table, when viewed at LoA2, distinguishes an artificial agent from a human one. This distinction supports our first counter-claim to Floridi and Sanders, namely, that such an agent is not a moral agent, and the designer bears full responsibility for its behavior. We also demonstrate that even if there is an artificial agent with a fully modifiable table capable of learning* and intentionality* that meets the conditions set by Floridi and Sanders for ascribing moral agency to an artificial agent, the designer retains strong moral responsibility. (shrink)
Charles Sanders Peirce (1839-1914), the founder of pragmatism, is generally considered the most significant American philosopher. Popularized by William James and John Dewey, pragmatism advocates that our philosophical theories be linked to experience and practice. The essays in this volume reveal how Peirce developed this concept.
Plato and the trial of Socrates -- What is philosophy? -- Euthyphro : defining philosophical terms -- The apology, Phaedo, and Crito : the trial, immortality, and death of Socrates -- Philosophy of religion -- Can we prove that God exists? -- St. Anselm : the ontological argument -- St. Thomas Aquinas : the cosmological argument -- William Paley : the teleological argument -- Blaisepascal : it is better to believe in God's existence than to deny it -- William James (...) : free choice is the basis of belief -- Does the idea of a good God exclude evil? -- Gottfried Wilhelm Leibniz : God can allow some evil -- David Hume : a good God would exclude evil -- Ethics -- Are ethics relative? -- Ruth Benedict : ethics are relative -- W.T. Stace : ethics are not relative -- Are humans always selfish? -- Humans are always selfish : Glaucon's challenge to Socrates -- James Rachels : humans are not always selfish -- Which is basic in ethics : happiness or obligation? -- Aristotle : happiness is living virtuously -- Jeremy Bentham : happiness is seeking the greatest pleasure for the greatest number of people -- Immanuel Kant : duty is prior to happiness -- Friedrich Nietzsche : happiness is having power -- Jean-Paul Sartre : existentialist ethics -- Rosemarie Tong : feminist ethics are different -- Contemporary moral problems : abortion, homosexuality, animal rights -- Jane English : are most abortions moral? -- Peter Singer : do animals have rights? -- Knowledge -- What is knowledge? -- Plato : knowledge is warranted, true belief -- What method is best for acquiring knowledge? -- Charles Sanders Peirce : four approaches to philosophy -- How do we acquire knowledge? -- René Descartes : knowledge is not ultimately sense knowledge -- John Locke : knowledge is ultimately sensed -- Immanuel Kant : knowledge is both rational and empirical -- How is truth established? -- Bertrand Russell : truth is established by correspondence -- Francis H. Bradley : truth is established by coherence -- William James : truth is established on pragmatic grounds -- Can we know the nature of causal relations? -- David Hume : cause means regular association -- David Hume : there are no possible grounds for induction -- Metaphysics -- Why is there something rather than nothing? -- Parmenides : being is uncaused -- Lao-Tzu : non-being is the source of being -- Is reality general or particular? -- Plato : universals are real -- David Hume : particulars are real -- Of what does reality consist? -- René Descartes : reality consists of mind and matter -- Paul Churchland : reality consists of matter -- George Berkeley : reality consists of ideas -- John Dewey : reality consists of mental and physical qualities -- Are humans free? -- Holbach : humans are determined -- Robert Kane : humans are free -- Social and political philosophy -- What is liberty? -- Fyodor Dostoevski : liberty and authority -- John Stuart Mill : liberty is independence from the majority's tyranny -- Martin Luther King, Jr. : liberty and racial prejudice -- Which government is best? -- Thomas Hobbes : monarchy is best -- John Locke : democracy is best -- Karl Marx : communism and nonalienated labor is best -- Alexis de Tocqueville : democracy can have serious problems -- Karl Popper : utopias lead to violence -- Aesthetics -- What constitutes the experience of beauty? -- Plotinus : beauty, sensuous, and ideal -- What is the function of art? -- Aristotle : the nature of tragedy -- Henri Bergson : the nature of comedy -- Philosophy and the good life -- Classic views of the good life -- Epicurus : Epicurus and the pleasant life -- Epictetus : Epictetus and the life of self-control -- What gives life meaning? -- Leo Tolstoy : faith provides life's meaning -- Albert Camus : each person determines his or her life's meaning -- What is the value of philosophy? -- Bertrand Russell : the value of philosophy. (shrink)
Pragmatism is first and foremost an intellectual self-image. It is a unique way of understanding the mental abilities that distinguish we humans from other living things on earth. The pragmatist description of our mind and its relationship to the rest of the world is a relatively new one. It has its roots in the late nineteenth and early twentieth century work of Charles Sanders Peirce, William James, and John Dewey. These philosophers, influenced by Darwinian biology among other things, redefined (...) the human mind. (shrink)
Bringing together specialists in various fields, this volume shows that the transformation from the scholastic to more empirical approaches to psychology was a gradual process.
These eighty-seven memoirs, anecdotes, and informal recollections by a broad range of reporters reflect both the reality and the myths surrounding this legendary figure. Together, they cover the entire span of Nietzsche's life and yield new insights into Nietzsche as a thinker and as a commentator on his times, recounting his views on religion, philosophy, women, literature, arts, and some of the great thinkers and historical figures.
