Some have suggested that there is no fact to the matter as to whether or not a particular physical system relaizes a particular computational description. This suggestion has been taken to imply that computational states are not real, and cannot, for example, provide a foundation for the cognitive sciences. In particular, Putnam has argued that every ordinary open physical system realizes every abstract finite automaton, implying that the fact that a particular computational characterization applies to a physical system does not (...) tell oneanything about the nature of that system. Putnam''s argument is scrutinized, and found inadequate because, among other things, it employs a notion of causation that is too weak. I argue that if one''s view of computation involves embeddedness (inputs and outputs) and full causality, one can avoid the universal realizability results. Therefore, the fact that a particular system realizes a particular automaton is not a vacuous one, and is often explanatory. Furthermore, I claim that computation would not necessarily be an explanatorily vacuous notion even if it were universally realizable. (shrink)

Some have suggested that there is no fact to the matter as to whether or not a particular physical system relaizes a particular computational description. This suggestion has been taken to imply that computational states are not real, and cannot, for example, provide a foundation for the cognitive sciences. In particular, Putnam has argued that every ordinary open physical system realizes every abstract finite automaton, implying that the fact that a particular computational characterization applies to a physical system does not (...) tell oneanything about the nature of that system. Putnam''s argument is scrutinized, and found inadequate because, among other things, it employs a notion of causation that is too weak. I argue that if one''s view of computation involves embeddedness (inputs and outputs) and full causality, one can avoid the universal realizability results. Therefore, the fact that a particular system realizes a particular automaton is not a vacuous one, and is often explanatory. Furthermore, I claim that computation would not necessarily be an explanatorily vacuous notion even if it were universally realizable. (shrink)

Summary. A distinction is made between two senses of the claim “cognition is computation”. One sense, the opaque reading, takes computation to be whatever is described by our current computational theory and claims that cognition is best understood in terms of that theory. The transparent reading, which has its primary allegiance to the phenomenon of computation, rather than to any particular theory of it, is the claim that the best account of cognition will be given by whatever theory turns out (...) to be the best account of the phenomenon of computation. The distinction is clarified and defended against charges of circularity and changing the subject. Several well-known objections to computationalism are then reviewed, and for each the question of whether the transparent reading of the computationalist claim can provide a response is considered. (shrink)

Replication or even modelling of consciousness in machines requires some clarifications and refinements of our concept of consciousness. Design of, construction of, and interaction with artificial systems can itself assist in this conceptual development. We start with the tentative hypothesis that although the word “consciousness” has no well-defined meaning, it is used to refer to aspects of human and animal informationprocessing. We then argue that we can enhance our understanding of what these aspects might be by designing and building virtual-machine (...) architectures capturing various features of consciousness. This activity may in turn nurture the development of our concepts of consciousness, showing how an analysis based on information-processing virtual machines answers old philosophical puzzles as well enriching empirical theories. This process of developing and testing ideas by developing and testing designs leads to gradual refinement of many of our pre-theoretical concepts of mind, showing how they can be construed as implicitly “architecture-based” concepts. Understanding how humanlike robots with appropriate architectures are likely to feel puzzled about qualia may help us resolve those puzzles. The concept of “qualia” turns out to be an “architecture-based” concept, while individual qualia concepts are “architecture-driven”. (shrink)

The development and deployment of the notion of pre-objective or nonconceptual content for the purposes of intentional explanation of requires assistance from a practical and theoretical understanding of computational/robotic systems acting in real-time and real-space. In particular, the usual "that"-clause specification of content will not work for non-conceptual contents; some other means of specification is required, means that make use of the fact that contents are aspects of embodied and embedded systems. That is, the specification of non-conceptual content should use (...) concepts and insights gained from android design and android epistemology. (shrink)

2.4 The Example: Infants and object-(im)permanence : : : : : : : : : : : : : : 17 2.4.1 Why a contentful account is warranted: Perspectival sensitivity : : : 17 2.4.2 The \searching under a cloth" and \AB" data : : : : : : : : : : : : 24 2.4.3 Two constraints on objectuality : : : : : : : : : : : : : : : : : : : : (...) : 25.. (shrink)

It is by now commonly agreed that the proper study of consciousness requires a multidisciplinary approach which focuses on the varieties and dimensions of conscious experience from different angles. This book, which is based on a workshop held at the University of Skövde, Sweden, provides a microcosm of the emerging discipline of consciousness studies and focuses on some important but neglected aspects of consciousness. The book brings together philosophy, psychology, cognitive neuroscience, linguistics, cognitive and computer science, biology, physics, art and (...) the new media. It contains critical studies of subjectivity vs objectivity, nonconceptuality vs conceptuality, language, evolutionary aspects, neural correlates, microphysical level, creativity, visual arts and dreams. It is suitable as a text-book for a third-year undergraduate or a graduate seminar on consciousness studies. (shrink)

A distinction is made between superpositional and non-superpositional quantum computers. The notion of quantum learning systems - quantum computers that modify themselves in order to improve their performance - is introduced. A particular non-superpositional quantum learning system, a quantum neurocomputer, is described: a conventional neural network implemented in a system which is a variation on the familiar two-slit apparatus from quantum physics. This is followed by a discussion of the advantages that quantum computers in general, and quantum neurocomputers in particular, (...) might bring, not only to our search for more powerful computational systems, but also to our search for greater understanding of the brain, the mind, and quantum physics itself. (shrink)

It is claimed that there are pre-objective phenomena, which cognitive science should explain by employing the notion of non-conceptual representational content. It is argued that a match between parallel distributed processing (PDP) and non-conceptual content (NCC) not only provides a means of refuting recent criticisms of PDP as a cognitive architecture; it also provides a vehicle for NCC that is required by naturalism. A connectionist cognitive mapping algorithm is used as a case study to examine the affinities between PDP and (...) NCC. (shrink)

It is argued that standard arguments for the Externalism of mental states do not succeed in the case of pre-linguistic mental states. Further, it is noted that standard arguments for Internalism appeal to the principle that our individuation of mental states should be driven by what states are explanatory in our best cognitive science. This principle is used against the Internalist to reject the necessity of narrow individuation of mental states, even in the prelinguistic case. This is done by showing (...) how the explanation of some phenomena requires quantification over broadly-individuated, world-involving states; sometimes externalism is required. Although these illustrative phenomena are not mental, they are enough to show the general argumentative strategy to be incorrect: scientific explanation does not require narrowly-individuated states. (shrink)

have context-sensitive constituents, but rather because they sometimes have no constituents at all. The argument to be rejected depends on the assumption that one can only assign propositional contents to representations if one starts by assigning sub-propositional contents to atomic representations. I give some philosophical arguments and present a counterexample to show that this assumption is mistaken.

(1) Van Gelder's concession that the dynamical hypothesis is not in opposition to computation in general does not agree well with his anticomputational stance. (2) There are problems with the claim that dynamic systems allow for nonrepresentational aspects of computation in a way in which digital computation cannot. (3) There are two senses of the “cognition is computation” claim and van Gelder argues against only one of them. (4) Dynamical systems as characterized in the target article share problems of universal (...) realizability with formal notions of computation, but differ in that there is no solution available for them. (5) The dynamical hypothesis cannot tell us what cognition is, because instantiating a particular dynamical system is neither necessary nor sufficient for being a cognitive agent. (shrink)

Searle (1980) constructed the Chinese Room (CR) to argue against what he called \Strong AI": the claim that a computer can understand by virtue of running a program of the right sort. Margaret Boden (1990), in giving the English Reply to the Chinese Room argument, has pointed out that there isunderstanding in the Chinese Room: the understanding required to recognize the symbols, the understanding of English required to read the rulebook, etc. I elaborate on and defend this response to Searle. (...) In particular, I use the insight of the English Reply to contend that Searle's Chinese Room cannot argue against what I call the claim of \Weak Strong AI": there are some cases of understanding that a computer can achieve solely by virtue of that computer running a program. I refute several objections to my defense of the Weak Strong AI thesis. (shrink)

Technology shapes every aspect of human experience and it is the primary driver of social and ecological change. Given this, it is surprising that we spend so little time studying, analyzing, and evaluating new technologies. Occasionally, an issue grabs public attention--for example, the use of human embryonic stem cells in medical research or online file sharing of music and movies. However, these are the exceptions. For the most part, we enthusiastically embrace each new technology and application with little critical reflection (...) on how it will impact our lives and our world. What is more, when an issue raised by an emerging technology is attended to, we often lack the language, concepts, and critical perspectives to thoroughly address it. The aim of this textbook is to introduce students and other readers to the ethical issues associated with a broad array of emerging technologies--including nanotechnology, synthetic genomics, robotics, genetic engineering, geoengineering, synthetic meat, virtual reality, information technologies, sex selection, and many more--and to help them develop analytical skills and perspectives for effectively evaluating novel technologies and applications. (shrink)

In Character and Environment, Ronald L. Sandler brings together contemporary work on virtue ethics with contemporary work on environmental ethics.

Virtue ethics is now widely recognized as an alternative to Kantian and consequentialist ethical theories. However, moral philosophers have been slow to bring virtue ethics to bear on topics in applied ethics. Moreover, environmental virtue ethics is an underdeveloped area of environmental ethics. Although environmental ethicists often employ virtue-oriented evaluation and appeal to role models for guidance, environmental ethics has not been well informed by contemporary work on virtue ethics. With _Character and Environment_, Ronald Sandler remedies each of these (...) deficiencies by bringing together contemporary work on virtue ethics with contemporary work on environmental ethics. He demonstrates the many ways that any ethic of character can and should be informed by environmental considerations. He also develops a pluralistic virtue-oriented environmental ethic that accommodates the richness and complexity of our relationship with the natural environment and provides effective and nuanced guidance on environmental issues. These projects have implications not only for environmental ethics and virtue ethics but also for moral philosophy more broadly. Ethical theories must be assessed on their theoretical and practical adequacy with respect to all aspects of the human ethical situation: personal, interpersonal, and environmental. To the extent that virtue-oriented ethical theory in general, and Sandler's version of it in particular, provides a superior environmental ethic to other ethical theories, it is to be preferred not just as an environmental ethic but also as an ethical theory. _Character and Environment_ will engage any reader with an interest in environmental ethics, virtue ethics, or moral philosophy. (shrink)

We are causing species to go extinct at extraordinary rates, altering existing species in unprecedented ways and creating entirely new species. More than ever before, we require an ethic of species to guide our interactions with them. In this book, Ronald L. Sandler examines the value of species and the ethical significance of species boundaries and discusses what these mean for species preservation in the light of global climate change, species engineering and human enhancement. He argues that species possess (...) several varieties of value, but they are not sacred. It is sometimes permissible to alter species, let them go extinct and invent new ones. Philosophically rigorous, accessible and illustrated with examples drawn from contemporary science, this book will be of interest to students of philosophy, bioethics, environmental ethics and conservation biology. (shrink)

Machine generated contents note: Preface; 1. Introduction; 2. The value of species; 3. The conservation biology dilemma; 4. Assisted colonization; 5. Shifting goals and changing strategies; 6. The (in)significance of species boundaries; 7. Homo sapiens in particular; 8. Artifactual species; 9. Conclusion.

As the crusade to outlaw the teaching of evolution changed to a battle for equal time for creationism, the ideological defenses of that doctrine also shifted from primarily biblical to more scientific grounds. This essay describes the historical development of “scientific creationism” from a variety of late–nineteenth– and early–twentieth–century creationist reactions to Charles Darwin's theory of evolution, through the Scopes trial and the 1960s revival of creationism, to the current spread of strict creationism around the world.

Food Ethics: The Basics is a concise yet comprehensive introduction to the ethical dimensions of the production and consumption of food. It offers an impartial exploration of the most prominent ethical questions relating to food and agriculture including: • Should we eat animals? • Are locally produced foods ethically superior to globally sourced foods? • Do people in affluent nations have a responsibility to help reduce global hunger? • Should we embrace bioengineered foods? • What should be the role of (...) government in promoting food safety and public health? Using extensive data and real world examples, as well as providing suggestions for further reading, Food Ethics: The Basics is an ideal introduction for anyone interested in the ethics of food. (shrink)

Belief in the divine origin of the universe began to wane most markedly in the nineteenth century, when scientific accounts of creation by natural law arose to challenge traditional religious doctrines. Most of the credit - or blame - for the victory of naturalism has generally gone to Charles Darwin and the biologists who formulated theories of organic evolution. Darwinism undoubtedly played the major role, but the supporting parts played by naturalistic cosmogonies should also be acknowledged. Chief among these was (...) the nebular hypothesis proposed by Pierre Simon Laplace in 1796, which explained the origin of the solar system as a natural development over extended periods of time. Ronald Numbers focuses on Laplace's theory as it affected American scientific thought. he first traces the history of Laplace's cosmogony chronologically, from its European inception to its demise about 1900. the last three chapters explore some of the theological and scientific consequences resulting from the acceptance of this cosmogony. Most significant was the change in the status of supernatural doctrine. When the nebular hypothesis lost credence at the end of the nineteenth century, those who had before tried to accommodate natural theory with supernatural doctrine no longer felt compelled to do so when faced with succeeding theories. The nebular hypothesis, it seems, had established natural law in the heavens. (shrink)

This article addresses the implications of rapid and uncertain ecological change, and global climate change in particular, for reserve oriented and restoration oriented ecosystem management. I argue for the following conclusions: (1) rapid and uncertain ecological change undermines traditional justifications for reserve oriented and restoration oriented ecosystem management strategies; (2) it requires rethinking ecosystem management goals, not just developing novel strategies (such as assisted colonization) to accomplish traditional goals; (3) species preservation ought to be deemphasized as an ecosystem management goal; (...) (4) reserve oriented ecosystem management remains well justified, but the goals for it must be revised. (shrink)

An accessible yet rigorous introduction to the field, Environmental Ethics: Theory in Practice helps students develop the analytical skills to effectively identify and evaluate the social and ethical dimensions of environmental issues. Covering a wide variety of theories and critical perspectives, author Ronald Sandler considers their strengths and weaknesses, emphasizes their practical importance, and grounds the discussions in a multitude of both classic and contemporary cases and examples. FEATURES * Discusses a wide range of theories of environmental ethics, representing (...) their strengths and weaknesses as charitably as possible without advocating for any particular theory, thereby encouraging students to think critically about which views are well justified and which are not * Extensive use of cases and examples links theoretical and practical issues and shows how environmental issues have both social and ecological components; issues covered include climate change, species conservation, ecological economics, consumption, environmental justice, intergenerational justice, genetically modified crops, animal agriculture, population, environmental rights, and food security, among many others * Incorporates both classic and cutting-edge cases and examples; iconic cases include the spotted owl, Bhopal chemical link, and Hetch Hetchy controversies, while contemporary cases include lead contamination of Flint, Michigan's water supply and innovations is conservation genetics, including conservation cloning, deextinction, and gene drives * Covers food ethics--addressing such topics as genetic engineering, food systems, food waste, and eating animals--and technology ethics, reflecting on technological power and the role of technology in creating and responding to environmental issues * Emphasizes the social justice dimensions of environmental problems with chapters on environmental justice, food security, ecofeminism, and more * Includes text boxes that provide extended discussions of cases; thought experiments; additional coverage of theoretical issues discussed in the main text; and exercises that ask students to apply theories or reflect on how theoretical issues intersect with practical problems * Provides numerous pedagogical aids including review questions, discussion questions, key terms and additional reading lists at the end of each chapter, extensive internal cross-referencing, a glossary of key terms and concepts, and more than thirty images, illustrations, tables, and graphs. (shrink)

Exact solutions of the Einstein field equations are found for the exterior and interior gravitational field of an infinitely long circulating cylinder of light. The exterior metric is shown to contain closed timelike lines.

We describe some of the ways that the field of content analysis is being transformed in an Era of Big Data. We argue that content analysis, from its beginning, has been concerned with extracting the main meanings of a text and mapping those meanings onto the space of a textual corpus. In contrast, we suggest that the emergence of new styles of text mining tools is creating an opportunity to develop a different kind of content analysis that we describe as (...) a computational hermeneutics. Here the goal is to go beyond a mapping of the main meaning of a text to mimic the kinds of questions and concerns that have traditionally been the focus of a hermeneutically grounded close reading, a reading that focuses on what Kenneth Burke described as the poetic meanings of a text. We illustrate this approach by referring to our own work concerning the rhetorical character of US National Security Strategy documents. (shrink)