Online research in philosophy

The report of the President's Council on Bioethics, Human Cloning and Human Dignity, addresses the central ethical, political, and policy issue in human embryonic stem cell research: the moral status of extracorporeal human embryos. The Council members were in sharp disagreement on this issue and essentially failed to adequately engage and respectfully acknowledge each others' deepest moral concerns, despite their stated commitment to do so. This essay provides a detailed critique of the two extreme views on the Council (i.e., embryos (...) have full moral status or they have none at all) and then gives theoretical grounding for our judgment about the intermediate moral status of embryos. It also supplies an account of how to address profound moral disagreements in the public arena, especially by way of constructing a middle ground that deliberately pays sincere respect to the views of those with whom it has deep disagreements. (shrink)

Janna Thompson dismisses environmental ethics primarily because it does not meet her criteria for ethics: consistency, non-vacuity, and decidability. In place of a more expansive environmental ethic, she proposes to limit moral considerability to beings with a “point of view.” I contend, first, that a point-of-view centered ethic is unacceptable not only because it fails to meet the tests of her own and other criteria,but also because it is precisely the type of ethic that has contributed to our current environmental (...) dilemmas. Second, I argue that the holistic, ecocentric land ethic of Aldo Leopold, as developed by J. Baird Callicott, an environmental ethic that Thompson never considers, nicely meets Thompson’s criteria for acceptable ethics, and may indeed be the cure for our environmental woes. (shrink)

Environmental ethics tends to be dominated by the idea that the right environmental actions require a change in the value systems of many people. I argue that the “rebirth” approach is perverse in that moral attitudes are not easily changed by moral suasion. A properly ethical approach must begin where we are, as moderately moral people desiring the best for all. The real ethical problem is to develop procedures for collectively defining environmental ends that will be fair to the parties (...) participating in the decision process. This idea is essentially utilitarian, and depends on the maximization of expected social utility. This type of environmental ethics is contrasted with current theories of social choice in welfare economics and with Rawls’ theory of justice as fairness. (shrink)

In this paper I argue that human pattern recognition can be simulated by automata. In particular, I show that gestalt recognition and recognition of family resemblances are within the capabilities of sufficiently complex Turing machines. The argument rests on elementary facts of automata and computability theory which are used to explicate our preanalytic, informal concepts concerning gestalt patterns and recognition. The central idea is that of a machine which "knows" its own structure. Although the paper thus aims to support mechanism, (...) especially as a framework hypothesis for perception, it contains suggestions for philosophy of science and philosophy of language as well. Some of these suggestions are sketched in the final section. (shrink)

Introduction: conceptual analysis of teaching, by B. P. Komisar and T. W. Nelson.--A concept of teaching, by B. O. Smith.--The concept of teaching, by I. Sheffler.--A topology of the teaching concept, by T. F. Green.--Teaching: act and enterprise, by B. P. Komisar.--Must an education have an aim? By R. S. Peters.--Curriculum as a field of study, by D. Heubner.--Can and should means-ends reasoning be used in teaching? By C. J. B. Macmillan and J. E. McClellan.

Machine generated contents note: Introduction Rudy Rucker; Part I. Perspectives on Infinity from History: 1. Infinity as a transformative concept in science and theology Wolfgang Achtner; Part II. Perspectives on Infinity from Mathematics: 2. The mathematical infinity Enrico Bombieri; 3. Warning signs of a possible collapse of contemporary mathematics Edward Nelson; Part III. Technical Perspectives on Infinity from Advanced Mathematics: 4. The realm of the infinite W. Hugh Woodin; 5. A potential subtlety concerning the distinction between determinism and nondeterminism (...) W. Hugh Woodin; 6. Concept calculus: much better than Harvey M. Friedman; Part IV. Perspectives on Infinity from Physics and Cosmology: 7. Some considerations on infinity in physics Carlo Rovelli; 8. Cosmological intimations of infinity Anthony Aguirre; 9. Infinity and the nostalgia of the stars Marco Bersanelli; 10. Infinities in cosmology Michael Heller; Part V. Perspectives on Infinity from Philosophy and Theology: 11. God and infinity: directions for future research Graham Oppy; 12. Notes on the concept of the infinite in the history of Western metaphysics David Bentley Hart; 13. God and infinity: theological insights from Cantor's mathematics Robert J. Russell; 14. A partially skeptical response to Hart and Russell Denys A. Turner. (shrink)

Unconditionals are syntactic conditionals whose affirmation affirms their consequent, unconditionally. Prominent instances were addressed by J.L. Austin ('There are biscuits if you want some') and Nelson Goodman (even-if 'semifactuals'). Their detailed features are explained in a Decision-Theoretic Semantics (DTS) which extends, by certainty and relevance conditions, the "CCCP" conditional probability construal of conditionals due to Ernest Adams and others. The construal of assertions of conditionals as conditional acts, defended by Keith DeRose and Richard Grandy in 1999 against objections arising (...) from Austin's unconditionals, is shown to be incompatible with any known version of CCCP. However, an ad-hoc decision-theoretic construal of their proposal is seen to work for Austin's unconditionals, albeit for these only. The DTS account of unconditionals hinges on stochastic independence or irrelevance conditions. For Austin's variant, it also involves changes in the expectations of non-indicator random variables, i.e. properly valuational relevance relations. The widely assumed speaker's knowledge presumption for assertion in general is reconstrued non-transcendently as a proposal to update to ostensible common certainty. This imperative replaces the factive 'T-axiom', KA-> A, of modal logical explications of knowledge to yield an doxastically imperatival, but evidence-sensitive theory of assertoric truth claims. On such a basis, Max Black's and G.E. Moore's ostensibilist account of assertors representing themselves as knowing is defended against Tim Williamson's 1996 and Igor Douven's 2006 respective deontic proposals for a knowledge or rational credibility requirement. Moreover, ostensibly unconditional, unhedged assertion is reconciled with a reality of dimly perceived potential defeaters on recognizing it to be a tacit semifactual, if need be. (shrink)

Nelson, L. The impossibility of the "Theory of knowledge."--Moore, G. E. Four forms of skepticism.--Lehrer, K. Skepticism & conceptual change.--Quine, W. V. Epistemology naturalized.--Rozeboom, W. W. Why I know so much more than you do.--Price, H. H. Belief and evidence.--Lewis, C. I. The bases of empirical knowledge.--Malcolm, N. The verification argument.--Firth, R. The anatomy of certainty.--Chisholm, R. M. On the nature of empirical evidence.--Meinong, A. Toward an epistemological assessment of memory.--Brandt, R. The epistemological status of memory beliefs.--Malcolm, N. A (...) definition of factual memory.--Martin, C. B. and Deutscher, M. Remembering.--Ayer, A. J. Basic propositions.--Reichenbach, H. Are phenomenal reports absolutely certain?--Goodman, N. Sense and certainty.--Lewis, C. I. The given element in empirical knowledge.--Alston, W. Varieties of privileged access.--Schlick, M. The foundation of knowledge.--Russell, B. Epistemological premisses, basic propositions, and factual premisses.--Firth, R. Coherence, certainty, and epistemic priority.--Sellars, W. Empiricism and the philosophy of mind.--Quinton, A. The foundations of knowledge. (shrink)

This paper examines the conclusions that one must draw from the finding that there are values in science. The value-ladenness of scientific claims puts the nature and role of empirical evidence into question, as seen in recent discussions in the philosophy of medicine regarding evidence-based medicine and feminist science studies, which maintains the normativity of its feminist claims. Within the critical literature and debates surrounding evidence-based medicine (EBM), one finds a championing of the lessons learned from post-positivist science studies: the (...) evidence-based effort to ground medical decision-making in the most rigorous sources of scientific evidence obscures the social values that necessarily enter into all decision-making contexts, the complex social context of clinical practice being no exception. The critics of EBM claim that to try to derive a formal methodology governed by pre-established rules, guidelines, and hierarchies of information misplaces the contextual and social features of biomedical knowledge and practice, thereby obscuring the power interests that so problematically dictate large factions of biomedical research and practice. Yet possible relativist implications follow from this finding, and we find that the EBM critics amply criticize EBM’s tacit theory of evidence, but then fail to formulate a constructive alternative theory of evidence within this fact-value interplay. After overviewing some such criticisms of evidence-based medicine, I turn to contemporary critical science studies, especially the feminist empiricism of Lynn Hankinson Nelson and Helen Longino, for workable alternative theories of evidence within a framework of normative scientific claims. I will suggest these theories fail to guide medical decision-making because of some undesirable consequences of Quinean fact-value holism: the denial that our values have logical content and are therefore not empirically examinable relativises even these nuanced conceptions of evidence. A naturalized look at how facts and values actually interact in medical decision-making suggests that this fact/value holism is not realistic. I provide an illustrative example of a physician devising a treatment recommendation for a patient to demonstrate that in practice, facts and values intermingle in the decision-making process without indeterminacy and subsequent appeals to moral and political frameworks, as feminist empiricism suggests. In the end, value-laden evidence can retain its adjudicative force and normativity. (shrink)

This paper explores allowing truth value assignments to be undetermined or "partial" (no truth values) and overdetermined or "inconsistent" (both truth values), thus returning to an investigation of the four-valued semantics that I initiated in the sixties. I examine some natural consequence relations and show how they are related to existing logics, including ukasiewicz's three-valued logic, Kleene's three-valued logic, Anderson and Belnap's (first-degree) relevant entailments, Priest's "Logic of Paradox", and the first-degree fragment of the Dunn-McCall system "R-mingle". None of these (...) systems have nested implications, and I investigate twelve natural extensions containing nested implications, all of which can be viewed as coming from natural variations on Kripke's semantics for intuitionistic logic. Many of these logics exist antecedently in the literature, in particular Nelson's "constructible falsity". (shrink)

In their article “The Concept of Voluntary Consent,” Robert Nelson and colleagues (2011) argue for two necessary and jointly sufficient conditions for voluntary action: intentionality, and substantial freedom from controlling influences. They propose an instrument to empirically measure voluntariness, the Decision Making Control Instrument. I argue that (1) their conceptual analysis of intentionality and controlling influences needs expansion in light of the growing use of behavioral economics principles to change individual and public health behaviors (growing in part by the (...) designation of “The Science of Behavior Change” as a new National Institutes of Health [NIH] Roadmap Activity); and (2) that their measure of voluntariness that relies on self-perceived intentionality and extent of control is unreliable, given findings from behavioral economics and cognitive science that show that our perceptions about the intentionality and control of our own and others’ decisions and actions are remarkably skewed and un-insightful. (shrink)

In a recent issue of "Religious Studies" Kevin Corcoran has criticized my arguments for the impossibility of theistic experience (i.e. an experience which is phenomenologically of God). Building on, and amending, criticisms already levelled against my views by Nelson Pike (in the latter's "Mystic Union"), Corcoran argues that my views are based on an account of what it is for an experience to be 'phenomenologically of' an individual (or kind of thing) which leads to 'wildly implausible' results. I here (...) try to show that Corcoran's criticisms are based on a misunderstanding of my views. (shrink)

The doctrine of the spiritual senses has played a significant role in the history of Roman Catholic and Eastern Orthodox spirituality. What has been largely unremarked is that the doctrine also played a significant role in classical Protestant thought, and that analogous concepts can be found in Indian theism. In spite of the doctrine’s significance, however, the only analytic philosopher to consider it has been Nelson Pike. I will argue that his treatment is inadequate, show how the development of (...) the doctrine in Puritan thought and spirituality fills a serious lacuna in Pike’s treatment, and conclude with some suggestions as to where the discussion should go next. (shrink)