A Logical Critique of Time Stop at the Speed of Light and Time Travel Beyond It

This paper presents a logical critique of the common claim that "time stops at the speed of light." Drawing on special relativity, philosophy of time (presentism vs eternalism), and logical analysis, it argues that the phrase is a coordinate artifact, not an ontological freezing of time. v2 update: Added presentism philosophical note clarifying the distinction between measured proper time and the concept of temporal becoming. v3 update: Added light-speed observer critique with light-clock Z-path analysis, clarifying that the Lorentz factor describes signal delay, not ontological time stop, with extension to v > c as double logical leap.