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Time travel is explored through a hypothetical scenario involving a time machine and the implications it has on identity. The discussion suggests that genuine time travel requires a continuity of identity, where the person who steps out of the time machine must be the same as the one who stepped in. This distinguishes true time travel from situations where a copy or clone emerges, highlighting the necessity of a causal connection for authenticity. The implications stretch into philosophical inquiries about identity and causation, particularly in the context of metaphysics.