I first distinguish several notions that have traditionally been conflated (or otherwise neglected) in discussions of the metaphysics of time. Thus, for example, I distinguish between the passage of time and temporal becoming. The former is, I maintain, a confused notion that does not represent a feature of the world; whereas a proper understanding of the latter provides the key for a plausible and comprehensive account of the nature of temporal reality. There are two general classes of views of the nature of temporal reality; proponents of particular views in both classes attempt to account for the phenomenon of temporal becoming in terms of qualitative change. I argue that any such account -in terms of change -is irredeemably problematic. And so I propound a different account of temporal becoming, based on the notion that temporal reality is transient, which provides the means to characterize intuitively and vividly the significant effects of time on the metaphysical nature of the world.Keywords Time . The metaphysics of time . Passage . Becoming
Preliminary Metaphysical Distinctions and ObjectivesIt seems beyond credible doubt that time exists and that the very presence of time in the world has certain effects on the way the world is. Temporal reality is, collectively, those marks upon the world that arise specifically as a consequence of the existence of time. An account of these marks, considered at the most general and elementary level, is a metaphysical account of the nature of temporal reality. The philosopher of time, then, might endeavor to provide an account -a theory -of the nature of time itself or of temporal reality or of some particular feature of either. A theory of the nature of time itself would provide answers to the questions of what time is and which properties this thing that is time has. A different kind of theoryone regarding the nature of temporal reality -would furnish answers to the question of how the world is as a consequence of the existence of time. These two types of theories are independent of one another. As explained below, a particular theory of time need not have any consequences for a theory of temporal reality (and vice versa).