Ingthorsson, McTaggart's Paradox and the R-theory of Time

Abstract

Ingthorsson, McTaggart’s Paradox and the R-theory of Time L. Nathan Oaklander University of Michigan-Flint, USA lno@umflint.edu Abstract In his provocative book, McTaggart’s Paradox (2016, [9]), R.D. Ingthors- son argues that McTaggart’s argument for the unreality of time rests on the principle of temporal parity according to which all times or events in time exist equally or co-exist in a sense that is compatible with their being successive. Moreover, since temporal parity is also an essential tenet of the B-theory, McTaggart’s argument against the reality of time can also be used to undermine the B-theory. Ingthorsson argues further that only by adopting an ontologically frugal presentist metaphysics can one avoid McTaggart’s paradox and account for identity through time and change. The aim of this paper is to clarify Russell’s authentic view of time in con- trast to the B-theory which is McTaggart’s misrepresentation of Russell and argue that temporal parity it is not a fundamental tenet of the Rus- sellian (R-) theory. For that reason, the R-theory is immune to objections that are based on temporal parity. I shall then offer my own interpretation of McTaggart’s paradox that renders Ingthorsson’s version of presentism subject to it.