Most people's intuitive reaction after considering Nozick's experience machine thought-experiment seems to be just like his: we feel very little inclination to plug in to a virtual reality machine capable of providing us with pleasurable experiences. Many philosophers take this empirical fact as sufficient reason to believe that, more than pleasurable experiences, people care about “living in contact with reality.” Such claim, however, assumes that people's reaction to the experience machine thought-experiment is due to the fact that they value reality (...) over virtual experiences—an assumption that has seldom (if ever) been questioned. This paper challenges that very assumption. I report some experimental evidence suggesting that the intuition elicited by the thought-experiment may be explainable by the fact that people are averse to abandon the life they have been experiencing so far, regardless of whether such life is virtual or real. I use then an explanatory model, derived from what behavioral economists and psychologists call the status quo bias, to make sense of these results. Finally, I argue that since this explanation also accounts for people's reaction toward Nozick's thought-experiment, it would be wrong to take such intuition as evidence that people value being in touch with reality. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Barrow and Newton E. W. STRONG As E. A. Buxrr HAS ADDUCED,Isaac Barrow (1630-1677) in his philosophy of space, time, and mathematical method strongly influenced the thinking of Newton: The recent publication of an early paper written by Newton (his De gravitatione et aequipondio fluidorum)2 affords evidence not known to Burtt of Newton's indebtedness in philosophy to Barrow, his teacher. Prior to its publication in 1962, this paper was (...) utilized by Alexandre Koyrd in his essay, "Newton and Descartes," 3 a study based on the third Horblit Lecture in the History of Science which he gave at Harvard University, March 8, 1961. Koyr8 maintains that there is a radical opposition in Newton's Principia not only to Descartes' purely scientific theories but also to the Cartesian philosophy. Yet, as he remarks, "we do not find in the Principia an open criticism of the philosophy of Descartes.... " He attributes this fact principally "to the very structure of the Principia: it is essentially a book on rational mechanics, which provides principles for physics and astronomy. In such a book there is a normal place for the discussion of Cartesian optics, but not of the conception of the relations of mind and body, and other such things." Koyrd asserts, nonetheless, that the criticism is not absent. It lurks in Newton's carefully worded definitions of fundamental concepts--those of space, time, motion, and matter--and becomes more apparent in the Optice of 1706 and in the second odition of the Principia. In support of this argument, he makes much of young Newton's unfini.~hed paper. He holds that this essay is of exceptional value "as it enables us to get some insight into the formation of Newton's thought, and to recognize that preoccupation with philosophic problems was not an external additatmentum but an integral dement of his thinking." 4 As concerns "young Newton's conception of space in its being and in its relation to God and time," Koyrd remarks that we learn from this essay The Metaphysical Foundations of Modern Physical Science (New York, 1927), p. 144. A. Rupert Hall and Marie Boas Hall, Unpublished Scientific Papers of Isaac Newton (Cambridge, 1962), Introduction, pp. 75-88; Latin text, pp. 90-121; English translation, pp. 121156. " Newtonian Studies (Harvard University Press, 1965), pp. 53-114. " Newtonian Studies, pp. 82-83. In his De gravitatione et aequipondio fluidorum, Newton is indeed engrossed with philosophic problems. With regard, however, to the announced purpose of his paper, namely, "to treat of the science of gravity and solid bodies in fluids by two methods," does Newton represent kis metaphysical "explanation of the nature of body" as an element of his science essential to its completeness7 He does not do so. At the end of his explanation he remarks: "I have already digressed enough; let us return to the main theme." He proceeds to set forth fifteen more definitions and then turns to the demonstration of two "Propositions on Non-Elastic Fluids." [155] 156 HISTORY OF PHILOSOPHY "that space is necessary, eternal, immutz~ble, and unmovable, that though we can imagine that there is nothing in space we cannot think space is not.., and that if there is no space, God would be nowhere. We learn also that all points of space are simultaneous and that, therefore, the divine omnipresence does not introduce composition in God.... " What we here learn from Newton about space in confutation of Descartes is to be found in Barrow's tenth mathematical lecture, "'Of Space, and Impenetrability." 5 In this lecture, Barrow opposes both Descartes and Hobbes. He objects, as does Newton, to the position taken by Descartes in his Principia Philosophiae, namely, "it is necessary.forMatter to be infinitely extended." He proceeds, as does Newton, to show how "very much Cartesius's great Subtility has failed him in this Case" to conclude that there is space empty of matter and distinct from magnitude from which an infinity of matter cannot be deduced. The correspondence of arguments tendered by Barrow and Newton indicates that the tenth lecture constituted a source from which Newton gleaned principal objections to Descartes' Principia Philosophiae. Although Koyr~ makes reference to Burtt's... (shrink)

It is customary to think that Objective List (“OL), Desire-Satisfaction (“D-S”) and Hedonistic (“HED”) theories of prudential value pretty much cover the waterfront, and that those of the three that are “subjective” are naturalistic (in the sense attacked by Moore, Ross and Ewing), while those that are “objective” must be Platonic, Aristotelian or commit the naturalist fallacy. I here argue for a theory that is both naturalistic (because voluntaristic) and objective but neither Platonic, Aristotelian, nor (I hope) fallacious. In addition, (...) this proposal, called “CHOICE,” is an example of neither an OL, D-S, nor HED theory. It is a theory according to which uncoerced choosings create objective values that we (even everyone) may be wrong about, because valuations are conative rather than epistemic activities. On this view, intrinsic prudential goods necessarily involve likely (pursuant to lawlike regularities) net increases in successful free choosings . (shrink)

“Real knowledge,” as I use the term, is the most highly prized form of true belief sought by an epistemic agent. This paper argues that defeasible infinitism provides a good way to characterize real knowledge and it shows how real knowledge can arise from fallible justification. Then, I argue that there are two ways of interpreting Ernest Sosa's account of real knowledge as belief that is aptly formed and capable of being fully defended. On the one hand, if beliefs are (...) aptly formed only if they have a specific causal etiology, namely that they are efficiently caused fully or partially by virtuous characteristics of the epistemic agent, then Sosa's account falls prey to what I call the problem of the Hazard of Empirical Disconfirmation. The HED problem applies to all forms of causal accounts of real knowledge and is simply that as we gain more empirical knowledge about the causal origins of our true beliefs that are the most highly prized we will discover that they do not always satisfy the required efficient causal constraints. Bluntly put, having sufficiently good reasons for our beliefs might not require that the beliefs have the requisite efficient causal etiology. On the other hand, there is a way of interpreting Sosa's views that does not include an efficient causal prerequisite. That interpretation makes Sosa's account of real knowledge almost identical to defeasible infinitism but expressed in an alternate vocabulary. Such a view is not subject to the HED problem and it can solve the deep problem in epistemology, namely how to get epistemically certain knowledge from fallible justification. (shrink)

The relative reinforcing value of food measures how hard someone will work for a high-energy-dense food when an alternative reward is concurrently available. Higher RRV for HED food has been linked to obesity, yet this association has not been examined in low-income preschool-age children. Further, the development of individual differences in the RRV of food in early childhood is poorly understood. This cross-sectional study tested the hypothesis that the RRV of HED to low-energy-dense food would be greater in children with (...) obesity compared to children without obesity in a sample of 130 low-income 3- to 5-year-olds enrolled in Head Start classrooms in Central Pennsylvania. In addition, we examined individual differences in the RRV of food by child characteristics and food security status. The RRV of food was measured on concurrent progressive-ratio schedules of reinforcement. RRV outcomes included the last schedule reached for cookies and fruit, the breakpoint for cookies in proportion to the total breakpoint for cookies and fruit combined, and response rates. Parents completed the 18-item food security module to assess household food security status and the Behavioral Activation System scale to assess reward sensitivity. Pearson’s correlations and mixed models assessed associations between continuous and discrete child characteristics with RRV outcomes, respectively. Two-way mixed effects interaction models examined age and sex as moderators of the association between RRV and Body Mass Index z-scores. Statistical significance was defined as p < 0.05. Children with obesity had a greater cookie Pmax [F = 4.95, p = 0.03], higher RRV cookie [F = 4.28, p = 0.04], and responded at a faster rate for cookies [F = 17.27, p < 0.001] compared to children without obesity. Children with higher cookie response rates had higher BMIZ ; and RRV cookie was positively associated with BMIZ for older children and boys, but not younger children or girls. The RRV of food did not differ by household food security status. Low-income children with obesity showed greater motivation to work for cookies than fruit compared to their peers without obesity. The RRV of HED food may be an important contributor to increased weight status in boys and future research is needed to better understand developmental trajectories of the RRV of food across childhood. (shrink)

Il est toujours tentant de diviser l'histoire de la recherche en époques, surtout lorsqu'un groupe ou une tendance s'en fait le repère avec la « troi­sième quête », fût-ce au prix de pratiques exégétiques et de présupposés méthodologiques pour le moins discutables . Divers modèles et figures du Christ surgissent de cette quête multi­forme Jésus philosophe cynique itinérant, sapiential, homme de l'Esprit, prophète de la restauration d'Israêl, militant du changement social...), ce qui ne suffit pourtant pas à jeter le soupçon (...) sur tous les auteurs ou sur la totalité de leurs travaux dont certains, par leur connaissance du milieu juif contemporain et des mouvements histori­ques, éclairent singulièrement le contexte politique dans lequel s'inscrit le destin du Christ. Témoignant d'une « relative cohérence », la « troisième quête », par l'usage des sources , la question de l'eschatologie et la valorisation de la judéité de Jésus, ravive la question de l'enjeu théologiquement fort de la quête du Jésus historique.It is always temping to divide historical research into periods, especially when a group or a tendency makes the division with a “ third quest », even at the price of exegetical practices and methodological presuppositions at the least debatable . Diverse models and figures of Christ arise from this multiform quest . This does not suffice, however, to throw suspicion on all the authors or on all theïr works , some of whom, by their knowledge of the contemporaneous Jewish milieu and historical movements hed singular light on the political context in which the destiny of Christ was written. Giving witness to a “relative coherenc”, the « third quest “ by using sources , the question of eschatology, and the valorization of the jewishness of Jesus, gives new life to the question of the strong theological stakes involved with the quest of the historical Jesus. (shrink)

“Jesus” constitutes the main element of Christian life. Therefore, Christianity is perceived as a Jesus-centered religion. This perception, from the birth of Jesus to his resurrection, clearly reveals itself both in the Christian faith, Christian worship and Iconography. Because, according to Christians, the birth of Jesus is the beginning of the salvation of mankind. The birth of Jesus, which contains a process, was celebrated as a Christmas Festival in Christianity. Christmas is a combination of the words “Noiono, Noio, Neos” and (...) the concepts “hed, hel, Helios”. These words mean “first day, new day of the month” or “new sun”. Today, Christmas has an important place in Christian life as folkloric. In this component, Santa Claus, pine tree and turkey have an important role. The birth of Jesus was reflected in iconography. The birth scene of Jesus was included in the iconography, and it was one of the icons of the twelve yortou (dodekaorthon). In this context, icons are important (especially for Orthodox Christians). The concept of icon comes from the Greek words “eikon, eikein”. In the iconography the birth of Jesus have the birth of Mary, the visit of Elizabeth, the dream of Joseph and the angel to Joseph, the census, the birth of Jesus, the good news of the shepherds and the worship of Kings. The concepts related to icons within these stages were analyzed. In this article, the importance of birth of Jesus in Christian life and iconography is revealed. Then, the birth of Jesus as a holiday has been discussed. And this birth was interpreted in iconographic terms. (shrink)