universe assumes both present and past objects exist, but not future ones. Views that assume no objective present and are therefore versions of the B-theory include eternalism and four-dimensionalism. See also Endurantism New riddle of induction Perdurantism The Unreality of Time Notes References Craig, William Lane, The Tensed Theory of Time, Springer, 2000. Craig, William Lane, The Tenseless Theory of Time, Springer, 2010. Ingthorsson, R. D., "McTaggart's Paradox", Routledge, 2016. McTaggart, J. E., 'The Unreality of Time', Mind, 1908. McTaggart, J. E.,The Nature of Existence, vols. 1-2, Cambridge University Press, Cambridge, 1968. Bradley, F. H., The Principles of Logic, Oxford University Press, Oxford, 1922. External links Time---Notes on McTaggart and the Unreality of Time- Trinity College Seminar on Time. Philosophy of physics Philosophy of time Concepts in metaphysics