Understanding Spacetime simultaneity in twin paradox scenarios

In summary, the twin paradox illustrates the effects of time dilation in special relativity, where one twin travels at relativistic speeds while the other remains stationary. This scenario raises questions about simultaneity, as the traveling twin experiences time differently due to their motion. When they reunite, the traveling twin is younger than the stationary twin, which challenges our intuitive understanding of time. The resolution lies in recognizing that simultaneity is relative and depends on the observer's frame of reference, emphasizing the non-absolute nature of time in spacetime.
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