[Verse 1] You’re on the platform, I’m riding east, Backpack beside me, I’m still in my seat. You say I’m moving, watching me leave; I say I’m resting—compared with the seat. Same train, same rider, same moment in time, Different reference frames explain both lines. From the ground, my position keeps changing; From the train, my place stays the same. [Hook] Moving compared to what? Put that question on the beat. Still compared with the train, Moving compared with the street. Name the object, name the frame, Tell me how position changed. Same ride, different description— That’s relative motion explained. [Verse 2] From my train frame, the platform goes west; You and the bench move together past the steps. From your ground frame, the platform stays put; I’m heading east with my bag and my book. Neither description needs to cancel the other; We measure position against something different. Before “moving” or “resting” becomes a conclusion, Name the frame you’re using in the description. [Bridge] Not two trips, not two trains, One event, two reference frames. Check the comparison before the claim; The frame belongs beside the name. [Final Hook] Moving compared to what? Put that question on the beat. Still compared with the train, Moving compared with the street. Name the object, name the frame, Tell me how position changed. Same ride, different description— That’s relative motion explained.
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