 Opposed to this are various versions of the A-theory, which deny one or both of (a) and (b). What these A-theoretic views (including eternalist and non-eternalist ones, like presentism or the growing block view) have in common is that they metaphysically privilege one time. Fundamental tensed facts capture this privilege. One prominent motivation for the A-theory is the conviction that time passes (robustly—i.e. in a sense that goes beyond mere B-theoretic temporal succession (see Skow 2015: 2); in what follows that’s what I mean by “temporal passage”). As time passes, the tensed facts change: first it’s a fundamental fact that it’s 12:00, then that it’s 12:01.