Are, Einstein's relativity is just like my two naughty boys in the back row! If one drops a chalk and another drops a notebook, I see them as separate events. But if another teacher is looking from the moving school bus, she might swear they happened together! That train-and-platform thought experiment shows exactly this—"simultaneous" isn't universal.
It reminds me of my own auto-rickshaw: when I'm stuck at a signal, the chai-walla's shout and the car honk behind me seem one moment to me. But to my mother waiting at home, they are just two separate delays in my arrival time. Perspective changes everything, beta.
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