Vaesen's description of uniquely human tool-related cognitive abilities rings true but would be enhanced by an account of how those abilities would have evolved. I suggest that a process of technological selection operated on the cognitive architecture of ancestral hominids because they, unlike other tool-using species, depended on tools for their survival.

Imperatives cannot be true or false, so they are shunned by logicians. And yet imperatives can be combined by logical connectives: "kiss me and hug me" is the conjunction of "kiss me" with "hug me". This example may suggest that declarative and imperative logic are isomorphic: just as the conjunction of two declaratives is true exactly if both conjuncts are true, the conjunction of two imperatives is satisfied exactly if both conjuncts are satisfied—what more is there to say? Much more, (...) I argue. "If you love me, kiss me", a conditional imperative, mixes a declarative antecedent ("you love me") with an imperative consequent ("kiss me"); it is satisfied if you love and kiss me, violated if you love but don't kiss me, and avoided if you don't love me. So we need a logic of three -valued imperatives which mixes declaratives with imperatives. I develop such a logic. (shrink)

If Y is normal with parameters μ and σ , the standard normal Z = ( Y - μ )/ σ has parameters and 1. Central Limit Theorem: For any sequence Y 1, Y 2, ... of IID random variables with expectation μ and variance σ , the cdf of Z is the limit, as n → ∞, of the cdf of ( Y 1 + Y 2 + … + Yn - nμ )/( σ √\x{D835}\x{DC5B}).

Amit Goswami published his book, "The Self-Aware Universe: How Consciousness Creates the Material World", in 1993. In 1996, he and Henry Swift started up the online newsletter Science Within Consciousness, which carries articles and news features connected with the Goswamian philosophy. Below, I comment on Goswami 's metaphysical theories as represented in his writings in the SWC newsletter, especially in his pieces: Monistic Idealism May Provide Better Ontology for Cognitive Science: A Reply to Dyer, The Hard Question: View from A (...) Science Within Consciousness, Toward an Understanding of the Paranormal, Amit Goswami was a professor at the Institute of Theoretical Science at the University of Oregon. He taught physics for 32 years in the USA, mostly at Oregon. He now is Senior Resident Researcher at the Institute of Noetic Sciences. (shrink)

volume 1. Developing institutional theory -- volume 2. New research agendas -- volume 3. Applying institutional theory.

Kadri Vihvelin, in "What time travelers cannot do" (Philos Stud 81: 315-330, 1996), argued that "no time traveler can kill the baby who in fact is her younger self, because (V1) "if someone would fail to do something, no matter how hard or how many times she tried, then she cannot do it", and (V2) if a time traveler tried to kill her baby self, she would always fail. Theodore Sider (Philos Stud 110: 115-138, 2002) criticized Vihvelin's argument, and Ira (...) Kiourti (Philos Stud 139: 343-352, 2008) criticized both Vihvelin's argument and Sider's critique. I present a critique of Vihvelin's argument different from both Sider's and Kiourti's critiques: I argue in a novel way that both V1 and V2 are false. Since Vihvelin's argument might be understood as providing a challenge to the possibility of time travel, if my critique succeeds then time travel survives such a challenge unscathed. (shrink)

This paper presents arguments and evidence from psychology and neuroscience supporting Lipton’s 2004 claim that scientists create knowledge through an abductive process that he calls “Inference to the Best Explanation”. The paper develops two conclusions. Conclusion 1 is that without conscious effort on our part, our brains use a process very similar to abduction as a powerful way of interpreting sensory information. To support Conclusion 1, evidence from psychology and neuroscience is presented that suggests that what we humans perceive through (...) our senses is not reality, but rather, our ‘brain’s “best guess” of the causes of its sensory input. The implication of this best guessing is that our brains use a process very similar to abduction throughout our lives to inform us of what is happening in the world around us. In addition, an argument based on Darwinian evolution is presented claiming that our brains do an excellent job of interpreting sensory information from the outside world. (If they did not, we, as a species, could hardly have survived.) Combining these two claims leads to Conclusion 1. Building on Conclusion 1, Conclusion 2 is that Lipton and others are correct in claiming that scientists use abduction when creating scientific theories. Abduction must be strong, because Nature chose abduction for its own sensemaking purposes. This paper’s contribution to knowledge is in pointing out that recent psychological and neuroscientific research has major implications for the philosophical world’s confidence in the probable validity of abductive inference. The punchline is simple: Nature chose abduction! (shrink)

I outline six components of a comprehensive proposal for overhauling the foundations of deontic logic. (1) Actions and prescriptions are temporally indexed; more precisely, they attach to nodes of a tree in a branching time structure. (2) Actions are (modeled as) sets of branches and can be coarse- or fine-grained depending on whether or not they have proper subsets which are also actions. (3) Prescriptions have satisfaction and violation sets; these are sets of branches which may—but need not—be or include (...) actions. (4) Prescriptive propositions, which state that an action is obligatory/permitted/forbidden according to a given prescription, are defined by relating the action with the satisfaction and violation sets of the prescription. (5) Conditional prescriptions can—but need not—be derived from unconditional or even from other conditional ones. (6) Thick prescriptions, in contrast to thin ones, prescribe or proscribe actions with varying intensities, and can have embedded subprescriptions (some of which are negative, namely “contraryto-duty”). Most of the above components are inspired by the literature, but their combination is novel. (shrink)

Sep 17 Time travel in Special Relativity (1) Nahin 1999: 439-51 & 459-66; (2) Taylor & Wheeler 1992: 121-35; (3) Nahin 1999: 343-8. Sep 24 Time travel in General Relativity (1) Malament 1985: 91-5; (2) Thorne 1994: 483-90 & 498-521; (3) Gott 2001: 92-110. Oct 1 Time travel in Quantum Mechanics (1) Albert 1992: 17-38, 73-9, & 112-5; (2) Barrett 1999: 149-62; (3) Deutsch & Lockwood 1994.

I defend the following version of the ought-implies-can principle: (OIC) by virtue of conceptual necessity, an agent at a given time has an (objective, pro tanto) obligation to do only what the agent at that time has the ability and opportunity to do. In short, obligations correspond to ability plus opportunity. My argument has three premises: (1) obligations correspond to reasons for action; (2) reasons for action correspond to potential actions; (3) potential actions correspond to ability plus opportunity. In the (...) bulk of the paper I address six objections to OIC: three objections based on putative counterexamples, and three objections based on arguments to the effect that OIC conflicts with the is/ought thesis, the possibility of hard determinism, and the denial of the Principle of Alternate Possibilities. (shrink)

I defend the epistemic thesis that evaluations of people in terms of their moral character as good, bad, or intermediate are almost always epistemically unjustified. (1) Because most people are fragmented (they would behave deplorably in many and admirably in many other situations), one's prior probability that any given person is fragmented should be high. (2) Because one's information about specific people does not reliably distinguish those who are fragmented from those who are not, one's posterior probability that any given (...) person is fragmented should be close to one's prior—and thus should also be high. (3) Because being fragmented entails being indeterminate (neither good nor bad nor intermediate), one's posterior probability that any given person is indeterminate should also be high—and the epistemic thesis follows. (1) and (3) rely on previous work; here I support (2) by using a mathematical result together with empirical evidence from personality psychology. (shrink)

Neuroscience has substantially advanced the understanding of how changes in brain biochemistry contribute to mechanisms of tolerance and physical dependence via exposure to addictive drugs. Many scientists and mental health advocates scaffold this emerging knowledge by adding the imprimatur of disease, arguing that conceptualizing addiction as a brain disease will reduce stigma amongst the folk. Promoting a brain disease concept is grounded in beneficent and utilitarian thinking: the language makes room for individuals living with addiction to receive the same level (...) of compassion and access to healthcare services as individuals living with other medical diseases, and promotes enlightened social and legal policies. However such claims may yield unintended consequences by fostering discrimination commonly associated with pathology. Specifically, the language of neuroscience used to describe addiction may reduce attitudes such as blame and responsibility while inadvertently identifying addicted persons as neurobiological others. In this paper, we examine the merits and limitations of adopting the language of neuroscience to describe addiction. We argue that the reframing of addiction in the language of neuroscience provides benefits such as the creation of empowered biosocial communities, but also creates a new set of risks, as descriptive neuroscience concepts are inseparable from historical attitudes and intuitions towards addiction and addicted persons. In particular, placing emphasis on the diseased brain may foster unintended harm by paradoxically increasing social distance towards the vulnerable group the term is intended to benefit. (shrink)

Besides pure declarative arguments, whose premises and conclusions are declaratives, and pure imperative arguments, whose premises and conclusions are imperatives, there are mixed-premise arguments, whose premises include both imperatives and declaratives, and cross-species arguments, whose premises are declaratives and whose conclusions are imperatives or vice versa. I propose a general definition of argument validity: an argument is valid exactly if, necessarily, every fact that sustains its premises also sustains its conclusion, where a fact sustains an imperative exactly if it favors (...) the satisfaction over the violation proposition of the imperative, and a fact sustains a declarative exactly if, necessarily, the declarative is true if the fact exists. I argue that this definition yields as special cases the standard definition of validity for pure declarative arguments and my previously defended definition of validity for pure imperative arguments, and that it yields intuitively acceptable results for mixed-premise and cross-species arguments. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Wittgenstein, Tolstoy, and ShakespearePeter B. LewisNear the middle of the first of his 1938 Lectures on Aesthetics, Wittgenstein talks about what he calls "the tremendous things in art"(LC, I 23 8, italics in original).1 Apart from a brief indication of the way in which our response to the tremendous differs from the non-tremendous, he does not refer again in this way to the tremendous things in art, though he (...) does refer elsewhere to what he calls "supreme art." But he does provide a couple of examples of the tremendous in art, the symphonies of Beethoven and Gothic Cathedrals. Suppose, now, like the student in the Investigations §185, we are asked to continue the series. I take it that, even given the lack of information, we could safely propose, say, Homer—the Iliad and the Odyssey—and Michelangelo—the Sistine Chapel—as further examples of the tremendous things in art. The idea is that the tremendous things in art are not works that are just very good or very fine, but rather they are great, supremely great; works of stature; special cases; instances of the highest kind of artistic achievement, occupying a distinctive place in the history of (Western) civilization.Another obvious candidate for the list of the tremendous things in art would be Shakespeare, where the name is shorthand for the great plays, the tragedies in particular, Lear, Hamlet, Othello,and so on. So it comes as something of a surprise to discover on reading that miscellaneous compendium of remarks known as Culture and Value that Wittgenstein himself had serious doubts about including Shakespeare in the pantheon of the tremendous things in art. There are seven passages in Culture and Value in which Wittgenstein reflects on Shakespeare.2 The earliest is dated 1939–40, though this passage does not appear to be critical of Shakespeare. The next two passages are [End Page 241] dated August 1946, the remainder coming in 1949 and 1950. The remarks critical of Shakespeare are, then, all very much late Wittgenstein.It is well-known that lots of people dislike Shakespeare's plays. Generations of school children have developed indifference or boredom or hatred that persists throughout their lives. And yet that does not count against Shakespeare's greatness; for, to borrow Hume's remark on those who would prefer Ogilby to Milton, "no one pays attention to such a taste; and we pronounce without scruple the sentiment of these [people] to be absurd and ridiculous."3 That rhetoric is, however, not available, at least not immediately, when the "pretended critic" (Hume's phrase) has the intellectual clout and aesthetic sensibility of a Wittgenstein; nor, for that matter, the artistic achievement of a Tolstoy.I have particular grounds for bringing Tolstoy into this discussion. In the first place, there is the importance of Tolstoy in the development of Wittgenstein's thinking about religious, moral and aesthetic issues. Secondly, it is by contrast with Tolstoy's criticism of Shakespeare that we can gain further understanding of Wittgenstein's remarks on Shakespeare. These two points are related. For it seems to me that it is partly through his reflections on Tolstoy's theories about art that Wittgenstein is led into commenting upon Shakespeare.Tolstoy famously attacks Shakespeare in his pamphlet, "Shakespeare and the Drama,"4 published in 1903 when Tolstoy was seventy-five years of age. Some have taken this essay as evidence that Tolstoy was in his dotage, his mind warped by religious-moralistic fervor. Not only does this fail to do justice to Tolstoy's reasons for criticizing Shakespeare—reasons that Howard Mounce has recently argued are by no means ridiculous5 —it also neglects the fact that the essay is the culmination of Tolstoy's life-long antagonism to Shakespeare. Nevertheless, that very slur on Tolstoy's sanity attests to Shakespeare's status in our culture as something tremendous. His achievement is a standard against which others are measured. And this, I think, is at least partly what Wittgenstein is hinting at in his remarks about the contrast between the tremendous and the non-tremendous in art when he says of the tremendous that "it plays an entirely different role... (shrink)

You may not know me well enough to evaluate me in terms of my moral character, but I take it you believe I can be evaluated: it sounds strange to say that I am indeterminate, neither good nor bad nor intermediate. Yet I argue that the claim that most people are indeterminate is the conclusion of a sound argument—the indeterminacy paradox—with two premises: (1) most people are fragmented (they would behave deplorably in many and admirably in many other situations); (2) (...) fragmentation entails indeterminacy. I support (1) by examining psychological experiments in which most participants behave deplorably (e.g., by maltreating “prisoners” in a simulated prison) or admirably (e.g., by intervening in a simulated theft). I support (2) by arguing that, according to certain plausible conceptions, character evaluations presuppose behavioral consistency (lack of fragmentation). Possible reactions to the paradox include: (a) denying that the experiments are relevant to character; (b) upholding conceptions according to which character evaluations do not presuppose consistency; (c) granting that most people are indeterminate and explaining why it appears otherwise. I defend (c) against (a) and (b). (shrink)

Why does classical equilibrium statistical mechanics work? Malament and Zabell (1980) noticed that, for ergodic dynamical systems, the unique absolutely continuous invariant probability measure is the microcanonical. Earman and Rédei (1996) replied that systems of interest are very probably not ergodic, so that absolutely continuous invariant probability measures very distant from the microcanonical exist. In response I define the generalized properties of epsilon-ergodicity and epsilon-continuity, I review computational evidence indicating that systems of interest are epsilon-ergodic, I adapt Malament and Zabell’s (...) defense of absolute continuity to support epsilon-continuity, and I prove that, for epsilon-ergodic systems, every epsilon-continuous invariant probability measure is very close to the microcanonical. (shrink)

A detailed discussion of issues in philosophical counseling for the practitioner and general public.

When mental suffering and distress are diagnosed as so-called “mental illnesses” it locates the cause as within the afflicted person. A close examination of the life situation of the distressed person will most times show the cause as originating external to the sufferer. Mental distress can arise with any number of troubling life situations such as financial or relationship problems, illness or death in the family, ethical dilemmas and so on. But diagnosing the person as having a biological brain problem (...) allows the prescription of psychotropic medications that can cost thousands of dollars over their lifetime. Of course, this adds to the profit margins of the corporations that produce them. These medications not only cause harmful side-effects, they add to the suffering of the person taking them. Philosophical counselling doesn’t cause any side effects, and is often much more effective at mitigating mental distress. (shrink)

Whistleblowing has been defined often and in differing ways in the literature. This paper has as its main purposes to clarify the meaning of whistleblowing and to speak for a narrow interpretation of it. A restrictive, general purpose definition is provided which contains six necessary elements: act of disclosure, actor, disclosure subject, target, disclosure recipient, and outcome.Whistleblowing is characterised as a dissenting act of public accusation against an organisation which necessitates being disloyal to that organisation. The definition differs from others (...) in many ways but especially by its emphasis on dissent, by being based on the ethical dilemma of conflicting loyalties, and by the strict way that dilemma is formulated in terms of confidentiality and proprietary rights over information. These features result in a definition in which motive has no part, and which requires a free choice decision to make disclosure to an external party. (shrink)

"Surrender; therefore, surrender or fight" is apparently an argument corresponding to an inference from an imperative to an imperative. Several philosophers, however (Williams 1963; Wedeking 1970; Harrison 1991; Hansen 2008), have denied that imperative inferences exist, arguing that (1) no such inferences occur in everyday life, (2) imperatives cannot be premises or conclusions of inferences because it makes no sense to say, for example, "since surrender" or "it follows that surrender or fight", and (3) distinct imperatives have conflicting permissive presuppositions (...) ("surrender or fight" permits you to fight without surrendering, but "surrender" does not), so issuing distinct imperatives amounts to changing one's mind and thus cannot be construed as making an inference. In response I argue inter alia that, on a reasonable understanding of 'inference', some everyday-life inferences do have imperatives as premises and conclusions, and that issuing imperatives with conflicting permissive presuppositions does not amount to changing one's mind. (shrink)