No Cycles in Acts: A Polemical Reply to Friebe (2016) on CTCs, "Time Direction," and Presentist Consolations

This paper argues that contemporary philosophical discussions of closed timelike curves (CTCs) rest on a systematic inversion: limitations of geometric representation are mistaken for limitations of temporal ontology. In particular, the absence of a global time function in certain spacetime models is taken to imply the breakdown of temporal order itself, thereby motivating metaphysical supplements such as “time direction” or presentism. The paper rejects this inference. It distinguishes three irreducible levels of order—act-order (ontological precedence), access-order (epistemic availability), and representation-order (formal encoding)—and shows that CTC-based arguments collapse these levels, attributing failures of representation to ontology. Closed timelike curves, on this account, reveal only the expressive limits of specific formalisms, not cycles or inconsistencies in the order of acts. To make this precise, the paper introduces a minimal initiation postulate (Act₀), which renders act-order well-founded without appeal to a global temporal parameter or to an ontologically privileged “present.” On this basis, a principle of historical invariance is formulated: extending temporal access cannot retroactively extend or alter history. Under these constraints, cycles may arise in models or identifications, but not in the order of acts itself. The resulting position is neither presentist nor block-universal. It preserves irreversibility, responsibility, and historical constraint while rejecting the reification of temporal representations. The paper concludes that CTCs motivate not a revision of temporal ontology, but methodological restraint in drawing ontological conclusions from geometric models.