 Fischer offers an actual-sequence, mechanism-based, reasons-responsive analysis of guidance control. He maintains that his analysis of guidance control is compatible with determinism. According to Fischer, an agent, and the mechanism of her action, can be entirely determined in the actual sequence of events in which she acts. Yet the actual manner in which her mechanism responds to reasons could be appropriately sensitive to reasons such that, if different reasons were to bear upon it, it would respond differently, and the agent whose mechanism it is would act differently than she does act.