On the Absence of Causality Paradoxes in Alcubierre Drive FTL Signaling Due to Worldline Intersection Constraints

We analyze the theoretical implications of faster-than-light (FTL) signaling using anAlcubierre warp drive framework. Unlike conventional signals propagating continuouslythrough spacetime, FTL communication via warp bubbles represents discrete spacetimeevents that must intersect the receiver's worldline precisely in both space and proper time. Weshow that this intrinsic targeting constraint prevents the formation of closed timelike curves(CTCs) that lead to causality paradoxes. Specifically, failure to account for relativistic propertime and frame differences results in the FTL message “missing” the recipient, thuspreventing paradoxical signaling loops. Additionally, we discuss the practical impossibility ofdocking or interacting with relativistic or superluminal ships, further limiting causality-violating scenarios. This note clarifies misunderstandings about causality violations inAlcubierre-based FTL scenarios and emphasizes operational limits on messaging in warpedspacetime.