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Whereas for me, the whole time Newton's laws
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and the laws of inertia were operating for me,
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whereas for him and the rocket during takeoff,
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things started flying off and during landing things started flying off.
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He cannot possibly claim he has the same status as me.
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That's why in that problem, the relationship is not symmetrical,
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and one person can say I did not move because I was always inertial,
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the other will say, I have to concede that he moved.
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Yes?
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Yeah. Then if you do it, if you give them symmetrical acceleration,
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both leave like this and both come back.
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Then, both will agree on their age