The argument for theological fatalism is valid (if the premises are all true, the conclusion follows).

This theological fatalist argument creates a dilemma for anyone who thinks it important to maintain both (1) there is a deity who infallibly knows the entire future, and (2) human beings have free will in the strong sense usually called libertarian. But it has also fascinated many who have not shared either of these commitments, because taking the argument’s full measure requires rethinking some of the most fundamental questions in philosophy, especially ones concerning time, truth, and modality. Those philosophers who think there is a way to consistently maintain both (1) and (2) are called c...