Recently, a time-honored assumption has resurfaced in some parts of the free will debate: if past divine beliefs or past truths about what we do depend on what we do, then these beliefs and truths are, in a sense, up to us; hence, we are able to act otherwise, despite the existence of past truths or past divine beliefs about our future actions. In this paper, I introduce and discuss a novel incompatibilist argument that rests on. This argument is interesting (...) in itself, for it is independent of a number of assumptions about the nature of God that have played an essential role in the classical defense of incompatibilism about divine foreknowledge and human free will. Moreover, the argument enables us to identify a difficulty compatibilists encounter when employing to block incompatibilism. (shrink)