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Message: <blockquote data-quote="kosandpol" data-source="post: 4868475" data-attributes="member: 105851">Relativity theory doesnt say that if you move faster than light, you can go back and forward in time. If you move faster than light (not practically possible as mass turns to energy at speed of light), it would appear as that you are going back in time since light emitted from something that happened in past still havent reached you.time is always linear. I dont know enough to explain why but that's how it is.The reference point is just that. A reference point. There is no "correct" or "incorrect" time.For our work we use the 24 hours based on Earth's rotation on its axis.If you want, you can take jupiter as  reference point as well (even though it may not be practical).</blockquote>

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