B Question about time and particle interactions

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The discussion centers on the complexities of time and particle interactions at relativistic speeds. The original poster is confused about how two particles, A and B, can interact while experiencing time differently due to their high velocities. Responses clarify that both particles measure time identically in their own frames, and interactions are possible when they occupy the same space at the same time. The conversation also touches on the nature of observing distant stars, emphasizing that light from these stars represents their past states rather than their current conditions. Ultimately, understanding these principles requires a grasp of relativity and the nuances of spacetime, which are not as straightforward as classical physics.

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