Presentism is the view, roughly speaking, that only presently existing things exist. Though presentism offers many attractive solutions to problems in metaphysics, philosophy of language, and philosophy of mind, it faces threats from two main sources: McTaggart and the special theory of relativity. This paper explores the prospects for fitting presentism together with the special theory. Two models are proposed, one which fits presentism into a relativistic setting (the cone model) and one which fits the special theory into a presentistic (...) setting (the surface model). It is concluded that there is no good reason arising from the special theory of relativity for rejecting presentism. Presentism is tenable here and preferable elsewhere. (shrink)

The dissertation is a defense of presentism, the thesis that only presently existing things exist. Many arguments against presentism, including those of McTaggart and Mellor, rely on the claim that the tenses are indexicals. In the first chapter I argue that which aspects of language are indexical depends on what there is. In particular, I argue that if presentism is true, the tenses are not indexicals. I base my response to McTaggart's argument for the unreality of tense on the claim (...) that the tenses are not indexicals. I include a modal analogue of McTaggart's argument, an argument for the unreality of the contingent, and respond to it in an analogous way. ;In the second chapter I discuss serious presentism, the thesis that objects have properties only when they exist. I discuss arguments by Plantinga and Prior and conclude that a presentist need not be a serious presentist and that serious presentism is false, false because present objects have properties when they do not exist, and false because past and future objects have properties now. I argue that a presentist, though not a serious presentist, can account for the independence of the past from the present without admitting the existence of past objects. ;One issue related to serious presentism is whether the presentist's quantifiers range over present objects only or over past and future objects as well. I argue that a presentist's quantifiers need not be existential and may range over past, present, and future objects. In the final chapter I develop a version of presentism I call unrestricted presentism. (shrink)

This chapter discusses the obstacles faced by presentists after denying the existence of past and future individuals. Presentism must still account for the manifest facts about the past and the future, but problems may arise when the presentist attempts to provide an account of the past. There is nothing in the presentist’s ontology on which to base truths about the past. Also, there is a problem regarding singular truths about past individuals; if past individuals do not exist, then they do (...) not have properties or stand in relations. If they do not stand in relations, then there is no way to talk about them because reference is a relation. Even the thought of them cannot exist since singular propositions about them do not exist if they do not. This chapter shows the absurdity of these conclusions and endeavors to prove the existence of past individuals. (shrink)