Various processes are often classified as both deterministic and random or chaotic. The main difficulty in analysing the randomness of such processes is the apparent tension between the notions of randomness and determinism: what type of randomness could exist in a deterministic process? Ergodic theory seems to offer a particularly promising theoretical tool for tackling this problem by positing a hierarchy, the so-called ‘ergodic hierarchy’, which is commonly assumed to provide a hierarchy of increasing degrees of randomness. However, that notion (...) of randomness requires clarification. The mathematical definition of EH does not make explicit appeal to randomness; nor does the usual way of presenting EH involve a specification of the notion of randomness that is supposed to underlie the hierarchy. In this paper we argue that EH is best understood as a hierarchy of random behaviour if randomness is explicated in terms of unpredictability. We then show that, contrary to common wisdom, EH is useful in characterising the behaviour of Hamiltonian dynamical systems. (shrink)

A non-monotonic theory of probability is put forward and shown to have applicability in the quantum domain. It is obtained simply by replacing Kolmogorov's positivity axiom, which places the lower bound for probabilities at zero, with an axiom that reduces that lower bound to minus one. Kolmogorov's theory of probability is monotonic, meaning that the probability of A is less then or equal to that of B whenever A entails B. The new theory violates monotonicity, as its name suggests; yet, (...) many standard theorems are also theorems of the new theory since Kolmogorov's other axioms are retained. What is of particular interest is that the new theory can accommodate quantum phenomena (photon polarization experiments) while preserving Boolean operations, unlike Kolmogorov's theory. Although non-standard notions of probability have been discussed extensively in the physics literature, they have received very little attention in the philosophical literature. One likely explanation for that difference is that their applicability is typically demonstrated in esoteric settings that involve technical complications. That barrier is effectively removed for non-monotonic probability theory by providing it with a homely setting in the quantum domain. Although the initial steps taken in this paper are quite substantial, there is much else to be done, such as demonstrating the applicability of non-monotonic probability theory to other quantum systems and elaborating the interpretive framework that is provisionally put forward here. Such matters will be developed in other works. (shrink)

The actual/virtual distinction is used to give an alternative account of quantum interference by way of a new theory of probability. The new theory is obtained by changing one of the axioms of the canonical theory of probability while keeping the other axioms fixed. It is used to give an alternative account of constructive quantum interference in the two-slit experiment. The account crucially involves a distinction between actual and virtual probabilities. Although actual probabilities are operational and virtual probabilities are not, (...) there is a substantial connection between them. Virtual probabilities may be obtained indirectly from actual probabilities. In showing this, interpretive considerations are brought to bear including some having to do with quantum non-locality. Directions for future research are discussed in closing.La distinción actual/virtual se utiliza para dar una explicación alternativa de la interferencia cuántica a través de una nueva teoría de la probabilidad. La nueva teoría se ha obtenido cambiando uno de los axiomas de la teoría canónica de la probabilidad y manteniendo los otros axiomas fijos. Se usa para dar una explicación alternativa de la interferencia cuántica constructiva en el experimento de la doble rendija. El informe fundamentalmente implica una distinción entre las probabilidades actuales y virtuales. Aunque las probabilidades actuales son operativas y las probabilidades virtuales no, hay una relación sustancial entre ellas. Probabilidades virtuales pueden obtenerse indirectamente a partir de las probabilidades reales. Para demostrar esta interpretación hay que tener en cuenta las consideraciones de interpretación que se ejercen entre ellos y que tienen relación con la no-localidad cuántica. Directrices para futuras investigaciones se abordan al final del artículo. (shrink)

In previous work, a non-standard theory of probability was formulated and used to systematize interference effects involving the simplest type of quantum systems. The main result here is a self-contained, non-trivial generalization of that theory to capture interference effects involving a much broader range of quantum systems. The discussion also focuses on interpretive matters having to do with the actual/virtual distinction, non-locality, and conditional probabilities.

If the quantum states of measured pairs are entangled, then there are triplets of experimental configurations for which Bell’s original inequality is violated. This paper gives a concise characterization of the entire range of possible triplets of polarization measurements on entangled photon pairs for which the inequality is violated.

This collection of essays by eminent philosopher Fred Dretske brings together work on the theory of knowledge and philosophy of mind spanning thirty years. The two areas combine to lay the groundwork for a naturalistic philosophy of mind. The fifteen essays focus on perception, knowledge, and consciousness. Together, they show the interconnectedness of Dretske's work in epistemology and his more contemporary ideas on philosophy of mind, shedding light on the links which can be made between the two. The first (...) section of the book argues the point that knowledge consists of beliefs with the right objective connection to facts; two essays discuss this conception of knowledge's implications for naturalism. The next section articulates a view of perception, attempting to distinguish conceptual states from phenomenal states. A naturalized philosophy of mind, and thus a naturalized epistemology, is articulated in the third section. This collection will be a valuable resource for a wide range of philosophers and their students, and will also be of interest to cognitive scientists, psychologists, and philosophers of biology. (shrink)

Ethnic cleansing and other methods of political and social exclusion continue to thrive in our globalized world, complicating the idea that unity and diversity can exist in the same society. When we emphasize unity, we sacrifice heterogeneity, yet when we stress diversity, we create a plurality of individuals connected only by tenuous circumstance. As long as we remain tethered to these binaries, as long as we are unable to imagine the sort of society we want in an age of diversity, (...) we cannot achieve an enduring solution to conflicts that continue unabated despite our increasing proximity to one another. By envisioning the public as a multivoiced body, Fred Evans offers a solution to the dilemma of diversity. The multivoiced body is both one and many: heterogeneous voices that at once separate and bind themselves together through their continuous and creative interplay. By focusing on this traditionally undervalued or overlooked notion of voice, Evans shows how we can valorize simultaneously the solidarity, diversity, and richness of society. Moreover, recognition of society as a multivoiced body helps resists the pervasive countertendency to raise a chosen discourse to the level of "one true God," "pure race," or some other "oracle" that eliminates the dynamism of contesting voices. To support these views, Evans taps the major figures and themes of analytic and continental philosophy as well as modernist, postmodernist, postcolonial, and feminist thought. He also turns to sources outside of philosophy to address the implications of his views for justice, citizenship, democracy, and collective as well as individual rights. Through the seemingly simple conceit of a multivoiced body, Evans straddles both philosophy and political practice, confronting issues of subjectivity, language, communication, and identity. For anyone interested in moving toward a just society and politics, _The Multivoiced Body_ offers an innovative approach to the problems of human diversity and ethical plurality. (shrink)

Ethnic cleansing and other methods of political and social exclusion continue to thrive in our globalized world, complicating the idea that unity and diversity can exist in the same society. When we emphasize unity, we sacrifice heterogeneity, yet when we stress diversity, we create a plurality of individuals connected only by tenuous circumstance. As long as we remain tethered to these binaries, as long as we are unable to imagine the sort of society we want in an age of diversity, (...) we cannot achieve an enduring solution to conflicts that continue unabated despite our increasing proximity to one another. By envisioning the public as a multivoiced body, Fred Evans offers a solution to the dilemma of diversity. The multivoiced body is both one and many: heterogeneous voices that at once separate and bind themselves together through their continuous and creative interplay. By focusing on this traditionally undervalued or overlooked notion of voice, Evans shows how we can valorize simultaneously the solidarity, diversity, and richness of society. Moreover, recognition of society as a multivoiced body helps resists the pervasive countertendency to raise a chosen discourse to the level of "one true God," "pure race," or some other "oracle" that eliminates the dynamism of contesting voices. To support these views, Evans taps the major figures and themes of analytic and continental philosophy as well as modernist, postmodernist, postcolonial, and feminist thought. He also turns to sources outside of philosophy to address the implications of his views for justice, citizenship, democracy, and collective as well as individual rights. Through the seemingly simple conceit of a multivoiced body, Evans straddles both philosophy and political practice, confronting issues of subjectivity, language, communication, and identity. For anyone interested in moving toward a just society and politics, _The Multivoiced Body_ offers an innovative approach to the problems of human diversity and ethical plurality. (shrink)

The most successful theory in all of science--and the basis of one third of our economy--says the strangest things about the world and about us. Can you believe that physical reality is created by our observation of it? Physicists were forced to this conclusion, the quantum enigma, by what they observed in their laboratories. Trying to understand the atom, physicists built quantum mechanics and found, to their embarrassment, that their theory intimately connects consciousness with the physical world. Quantum Enigma explores (...) what that implies and why some founders of the theory became the foremost objectors to it. Schrodinger showed that it "absurdly" allowed a cat to be in a "superposition" simultaneously dead and alive. Einstein derided the theory's "spooky interactions." With Bell's Theorem, we now know Schrodinger's superpositions and Einstein's spooky interactions indeed exist. Authors Bruce Rosenblum and Fred Kuttner explain all of this in non-technical terms with help from some fanciful stories and bits about the theory's developers. They present the quantum mystery honestly, with an emphasis on what is and what is not speculation. Physics' encounter with consciousness is its skeleton in the closet. Because the authors open the closet and examine the skeleton, theirs is a controversial book. Quantum Enigma's description of the experimental quantum facts, and the quantum theory explaining them, is undisputed. Interpreting what it all means, however, is controversial. Every interpretation of quantum physics encounters consciousness. Rosenblum and Kuttner therefore turn to exploring consciousness itself--and encounter quantum physics. Free will and anthropic principles become crucial issues, and the connection of consciousness with the cosmos suggested by some leading quantum cosmologists is mind-blowing. Readers are brought to a boundary where the particular expertise of physicists is no longer a sure guide. They will find, instead, the facts and hints provided by quantum mechanics and the ability to speculate for themselves. (shrink)

An examination of determinism in the context of chaotic dynamics.

An elegant introduction to Bataille's major concepts and concerns, "Bataille: A Critical Reader" underlines the powerful impact his work has had, in different ...

In a recent article Humphreys has developed an intriguing proposal for making sense of emergence. The crucial notion for this purpose is what he calls "fusion" and his paradigm for it is quantum nonseparability. In what follows, we will develop this position in more detail, and then discuss its ramifications and limitations. Its ramifications are quite radical; its limitations are substantial. An alternative approach to emergence that involves quantum physics is then proposed.

This paper proposes a third meditation-category—automatic self-transcending— to extend the dichotomy of focused attention and open monitoring proposed by Lutz. Automaticself-transcending includes techniques designed to transcend their own activity. This contrasts with focused attention, which keeps attention focused on an object; and open monitoring, which keeps attention involved in the monitoring process. Each category was assigned EEG bands, based on reported brain patterns during mental tasks, and meditations were categorized based on their reported EEG. Focused attention, characterized by beta/gamma activity, (...) included meditations from Tibetan Buddhist, Buddhist, and Chinese traditions. Open monitoring, characterized by theta activity, included meditations from Buddhist, Chinese, and Vedic traditions. Automaticself-transcending, characterized by alpha1 activity, included meditations from Vedic and Chinese traditions. Between categories, the included meditations differed in focus, subject/object relation, and procedures. These findings shed light on the common mistake of averaging meditations together to determine mechanisms or clinical effects. (shrink)

This chapter discusses the flaws of Clark’s extended mind hypothesis. Clark’s hypothesis assumes that the nature of the processes internal to an object has nothing to do with whether that object carries out cognitive processing. The only condition required is that the object is coupled with a cognitive agent and interacts with it in a certain way. In making this tenuous connection, Clark commits the most common mistake extended mind theorists make; alleging that an object becomes cognitive once it is (...) connected to a cognitive agent is a “coupling-constitution fallacy.” From this fallacy, many hastily proceed to the conclusion that the object or process constitutes part of the agent’s cognitive apparatus or cognitive processing. (shrink)

Explores some steps toward non-assimilative encounters in the "global village.".

This paper involves one crucial assumption; namely, that the statistical predictions of quantum mechanics for Bell's variant of the EPR experiment will continue to be verified as detector efficiencies are improved and the need for coincidence counters is eliminated. This assumption entails that any hidden-variables theory for quantum mechanics must violate Bell's inequality--the inequality derived in Bell (1964). It is shown here that four locality conditions are involved in the derivation of Bell's inequality; and that a violation of any of (...) the four locality conditions will either entail the existence of superluminal influences or the existence of superluminal signals (superluminal influences that can be used to transmit information), if conspiratorial theories can be ruled out. The attempts so far to rule out conspiratorial theories are all found to be rather dubious, but there are other considerations developed here that rule them out convincingly. Finally, it is demonstrated that violations of each of the four locality conditions can be used to transmit information superluminally, if certain auxiliary conditions are satisfied. This is of particular interest because one of these conditions corresponds to a condition dubbed "completeness" by Jon Jarrett. Jarrett and others have suggested that violations of completeness cannot be used to send information superluminally. Demonstrating otherwise is, perhaps, the most significant result obtained in this paper. (shrink)

Systems biology is a vigorous and expanding discipline, in many ways a successor to genomics and perhaps unprecendented in its combination of biology with a ...

Philosophical interest in situated cognition has been focused most intensely on the claim that human cognitive processes extend from the brain into the tools humans use. As we see it, this radical hypothesis is sustained by two kinds of mistakes, confusing coupling relations with constitutive relations and an inattention to the mark of the cognitive. Here we wish to draw attention to these mistakes and show just how pervasive they are. That is, for all that the radical philosophers have said, (...) the mind is still in the head. (shrink)

Philosophical interest in situated cognition has been focused most intensely on the claim that human cognitive processes extend from the brain into the tools humans use. As we see it, this radical hypothesis is sustained by two kinds of mistakes, the confusion of coupling relations with constitutive relations and an inattention to the mark of the cognitive. Here we wish to draw attention to these mistakes and show just how pervasive they are. That is, for all that the radical philosophers (...) have said, the mind is still in the head. (shrink)

Among philosophers, there are at least two prevalent views about the core concept of intentional action. View I (Adams 1986, 1997; McCann 1986) holds that an agent S intentionally does an action A only if S intends to do A. View II (Bratman 1987; Harman 1976; and Mele 1992) holds that there are cases where S intentionally does A without intending to do A, as long as doing A is foreseen and S is willing to accept A as a consequence (...) of S’s action. Joshua Knobe (2003a) presents intriguing data that may be taken to support the second view.1 Knobe’s data show an asymmetry in folk judgements. People are more inclined to judge that S did A intentionally, even when not intended, if A was perceived as causing a harm (e.g. harming the environment). There is an asymmetry because people are not inclined to see S’s action as intentional, when not intended, if A is perceived as causing a benefit (e.g. helping the environment). In this paper we will discuss Knobe’s results in detail. We will raise the question of whether his ordinary language surveys of folk judgments have accessed core concepts of intentional action. We suspect that instead Knobe’s surveys are tapping into pragmatic aspects of intentional language and its role in moral praise and blame. We will suggest alternative surveys that we plan to conduct to get at this difference, and we will attempt to explain the pragmatic usage of intentional language. (shrink)

A motivational system approach to avoidance behavior is presented. According to this approach, a motivational state increases the probability of relevant response patterns and establishes the appropriate or “ideal” consummatory stimuli as positive reinforcers. In the case of feeding motivation, for example, hungry rats are likely to explore and gnaw, and to learn to persist in activities correlated with the reception of consummatory stimuli produced by ingestion of palatable substances. In the case of defense motivation, fearful rats are likely to (...) flee or freeze, and to learn to persist in activities correlated with consummatory stimuli produced by flight from a dangerous place. Defense system activation is distinct from alarm reactions. The latter prepare the animal for probable noxious events, involve relatively intense negative affect and extinguish rapidly in situations where the noxious event no longer occurs. In contrast, defense system activation potentiates innate and modified defense reactions, thus preparing the animal for possible, but not necessarily probable, noxious events; it involves little or no negative affect and extinguishes very slowly when the noxious event no longer occurs. With these assumptions and the resulting model we attempt to resolve several long-standing problems in avoidance learning, including the low correlation between negative affect and avoidance performance, differential rates of extinction for avoidance performance and conditioned emotional responses, and evidence that some avoidance responses are much more easily learned than others. In addition, the model has implications for the study of parallels between appetitive and aversive motivation, sign tracking in aversive conditioning, and orientation of flight responses. Historical antecedents and alternative approaches are discussed. (shrink)

This article treats the conflict between historicism and neo-Kantianism in the late nineteenth century by a careful examination of the writings of Wilhelm Windelband, the leader of the Southwestern neo-Kantians. Historicism was a profound challenge to the fundamental principles of Kant’s philosophy because it seemed to imply that there are no universal and necessary principles of science, ethics or aesthetics. Since all such principles are determined by their social and historical context, they differ with each culture and epoch. Windelband attempted (...) to respond to the challenge of this relativism by either broadening Kantian principles, so that they could accommodate the results of historicism, or by reformulating Kantian principles, so that they were impregnable to historical change. The article examines both aspects of Windelband’s strategy in some detail, noting the many changes and different formulations in his views. A final section considers some of the difficulties of Windelband’s strategy and concludes that, despite its heroic efforts, it was a failure.Keywords: Historicism; Normativity; Weltanschauung; Hegelianism; Relativism; Wilhelm Windelband; Immanuel Kant. (shrink)

This article explores issues in the evaluation of research through an examination of the situation in the field of international development. It is increasingly recognized that traditional evaluation, which served largely a policing function, is not useful in assessing the impact of the development research process. It is argued that the role and perception of evaluation must change if it is to provide a reflection of the learning which takes place in research. The field of international development research provides a (...) rich ground in which to explore the argument. The field is subject to the difficulties of evaluating research and to the difficulties of evaluating development—in both cases, we are dealing with long time frames and the influence of many factors other than the activity itself. If evaluation is to serve a learning function, then the shift must be to a purpose ofempowerment. This article explores the changes which are implicit in such a shift through an examination of three key areas: changing perspectives on evaluation; changing patterns in development; and changing patterns in research for development. (shrink)

Causal theories of mental content attempt to explain how thoughts can be about things. They attempt to explain how one can think about, for example, dogs. These theories begin with the idea that there are mental representations and that thoughts are meaningful in virtue of a causal connection between a mental representation and some part of the world that is represented. In other words, the point of departure for these theories is that thoughts of dogs are about dogs because dogs (...) cause the mental representations of dogs. (shrink)

Fred Miller offers a controversial reappraisal of the Politics, suggesting that nature, justice, and rights are central to Aristotle's political thought. He sheds new light on Aristotle's relation to modern natural rights theorists, and to the current liberalism-communitarianism debate.

Values & Ethics takes readers through a full year of the weekly Torah portion, exploring values lessons that are suggested by the text. Every page consists of a quote from the Torah text, a discussion of values themes suggested by that text, discussion questions, and activity ideas.

Comparative political theory is at best an embryonic and marginalized endeavor. As practiced in most Western universities, the study of political theory generally involves a rehearsal of the canon of Western political thought from Plato to Marx. Only rarely are practitioners of political thought willing (and professionally encouraged) to transgress the canon and thereby the cultural boundaries of North America and Europe in the direction of genuine comparative investigation. Border Crossings presents an effort to remedy this situation, fully launching a (...) new era in political theory. Thirteen scholars from around the world examine the various political traditions of West, South, and East Asia and engage in a reflective cross-cultural discussion that belies the assumptions of an Asian "essence" and of an unbridgeable gulf between West and non-West. The denial of essential differences does not, however, amount to an endorsement of essential sameness. As viewed and as practiced by contributors to this ground-breaking volume, comparative political theorizing must steer a course between uniformity and radical separation--this is the path of "border crossings.". (shrink)

Conventional wisdom has it that chaotic behavior is either strongly suppressed or absent in quantum models. Indeed, some researchers have concluded that these considerations serve to undermine the correspondence principle, thereby raising serious doubts about the adequacy of quantum mechanics. Thus, the quantum chaos question is a prime subject for philosophical analysis. The most significant reasons given for the absence or suppression of chaotic behavior in quantum models are the linearity of Schrödinger’s equation and the unitarity of the time-evolution described (...) by that equation. Both are shown in this essay to be irrelevant by demonstrating that the crucial feature for chaos is the nonseparability of the Hamiltonian. That demonstration indicates that quantum chaos is likely to be exhibited in models of open quantum systems. A measure for probing such models for chaotic behavior is developed, and then used to show that quantum mechanics has chaotic models for systems having a continuous energy spectrum. The prospects of this result for vindicating the correspondence principle (or the motivation behind it, at least) are then briefly examined. (shrink)