 A defender of the view that time passes could attempt to resist Smart’s regress by cutting off the regress at the second stage by claiming that there is a principled difference between the first temporal dimension and the second that results in the first temporal dimension passing at some rate, but not the second. Smart himself concludes that time does not pass, so can hardly object to the postulation of temporal dimensions that do not pass. However, Smart’s regress can be resisted without abandoning the principle that all temporal dimensions pass at some rate.