In this paper I draw the distinction between intuitive and theory-relative accounts of the time reversal symmetry and identify problems with each. I then propose an alternative to these two types of accounts that steers a middle course between them and minimizes each account’s problems. This new account of time reversal requires that, when dealing with sets of physical theories that satisfy certain constraints, we determine all of the discrete symmetries of the physical laws we are interested in and look (...) for involutions that leave spatial coordinates unaffected and that act consistently across our physical laws. This new account of time reversal has the interesting feature that it makes the nature of the time reversal symmetry an empirical feature of the world without requiring us to assume that any particular physical theory is time reversal invariant from the start. Finally, I provide an analysis of several toy cases that reveals differences between my new account of time reversal and its competitors. (shrink)

In his 2007 paper “Quantum Sleeping Beauty”, Peter Lewis poses a problem for the supporters’ of the Everett interpretation of quantum mechanics appeal to subjective probability. Lewis’s argument hinges on parallels between the traditional “sleeping beauty” problem in epistemology and a quantum variant. These two cases, Lewis argues, advocate different treatments of credences even though they share important epistemic similarities, leading to a tension between the traditional solution to the sleeping beauty problem (typically called the “thirder” solution) and Everettian quantum (...) mechanics. In this paper I examine the metaphysical and epistemological differences between Lewis’s two cases, and, in particular, I show how diachronic Dutch book arguments support both the thirder solution in the traditional case and the Everettian’s solution in the variant case. These Dutch books, I argue, reveal an important disanalogy between Lewis’s two cases such that Lewis’s argument does not reveal an inconsistency in either the Everettian’s or the thirder’s assignment of credences. (shrink)

Ever since the now infamous comments made by Hermann Minkowski in 1908 concerning the proper way to view space-time, the debate has raged as to whether or not the universe should be viewed as a four-dimensional, unified whole wherein the past, present, and future are equally real or whether the views espoused by the possibilists, historicists, and presentists regarding the unreality of the future (and, for presentists, the past) are best. Now, a century after Minkowski’s proposed blockworld first sparked debate, (...) we seek a more conclusive argument in favor of the eternalist picture of space-time. Utilizing an argument based on the relativity of simultaneity in the tradition of Putnam and Rietdijk and novel but reasonable assumptions as to the nature of “reality”, we will show that the past, present, and future are equally real, thus ruling out presentism and other theories of time that bestow special ontological status to the past, present, or future as untenable. Finally, we will respond to our critics who would suggest that: 1) there is no metaphysical difference between the positions of eternalism and presentism, 2) the present must be defined as the “here” as well as the “now”, or 3) presentism is correct and our understanding of relativity is incomplete because it does not incorporate a preferred frame. We call eternalist response 1 deflationary since it purports to dissolve or deconstruct the age-old debate between the two views and response 2 compatibilist because it does nothing to alter special relativity (SR) arguing instead that SR unadorned has the resources to save presentism. Response 3 we will call incompatibilism because it adorns SR in some way in order to save presentism a la some sort of preferred frame. We will show that neither move 1 nor 2 can save presentism and move 3 is not well motivated at this juncture except as an ad hoc device to refute eternalism. (shrink)

Saul Smilansky has argued that, since acts of petitionary prayer are best understood as requests, not desires, there may be many more impermissible prayer acts than one might expect. I discuss Smilansky’s analysis and argue that his conclusion follows only for those who do not believe in an omnipotent, omniscient, and perfectly benevolent deity and take advantage of what Smilansky calls the theist’s ‘moral escape clause’. However, I take my argument to lead us to a variant of the problems of (...) evil and petitionary prayer instead of a problem with Smilansky’s reasoning, requirng us to either abandon at least one of three properties commonly assigned to God or else to abandon an intuitive account of prayer that makes it morally impermissible to pray for morally impermissible ends. (shrink)

In this paper I provide an account of physical symmetries, which are defined relative to a specific physical theory, and overarching symmetries, which hold across many different physical theories. I outline two general strategies for uniting disparate physical symmetries under the same overarching symmetry, calling the first "realist" and the second "conventionalist". Finally, I argue that, should physicists and philosophers be interested in finding symmetries that do interesting and helpful physical and metaphysical work, the realist strategy would serve them better (...) than the conventionalist strategy. (shrink)

Many philosophers of physics take the failure of the laws of physics to be invariant under the time reversal transformation to give us good reason to think that spacetime is temporally anisotropic, yet the details of this inference are rarely made explicit. I discuss two reasonable ways of filling in the details of this inference, the first of which utilizes a symmetry principle proposed by John Earman and the second of which utilizes Harvey Brown’s account of spacetime. I contend that (...) neither of the resulting arguments is sound. (shrink)

By contrasting rational knowledge with relational knowledge, this paper discusses the forming of agreements as the pursuit of knowledge. Knowledge as agreement is thus discussed in this paper via research methods including ‘autoethnography’ . Pursuing knowledge by virtue of agreements is subsequently valued after positioning the author as a non-Indigenous ‘dagay’, positioning the paper itself as a dissertation, and after assuming an initial relationship between the reader and author. The paper occurs within the cultural context of ‘academia’. Once rational knowledge (...) has been contrasted with relational knowledge, the paper then highlights how agreements may be effectively pursued via ‘dialogue’ and affected by one’s topology . These pursuits, says the paper, are pursuits of knowledge as agreement. This paper is written from within ‘academia’ for the academic reader of a philosophical ilk. It is an attempt at the coherent valuing of relational knowledge and discussion of the possibility of knowledge through the pursuit of agreements. Philosophically, this is a paper about epistemology. As a creative discussion, author and reader share via this paper their mutual pursuit of fresh knowledge. Thus the paper is offered as an invitation for the reader to join the author in creating something that has not existed before – new knowledge. (shrink)

Non-cognitive dispositions have recently become psychological constructs of interest in the education, economics, philosophy, sociology, and psychology literature. In this article, I draw the distinction between property-first and measurement-first approaches to understanding the meaning of a particular non-cognitive disposition theoretical term, ‘grit’, as well as the relationship between this term and its corresponding measurement procedure. I argue that, depending on which approach one takes, one is confronted with different norms for judging the success of any disposition-measurement procedure pair, meaning that (...) the difference in philosophical approaches may have practical import. I argue that the measurement-first approach is the one educators and educational policy-makers ought to adopt towards grit as it is less likely to lead to over-valuing grit in situations where a gritty disposition may be harmful, better respects scientific virtues and values, and provides a clearer understanding of grit than the property-first approach. (shrink)