Question about Time Theory and Theory of relativity. Please help!!!

in time •  6 years ago  (edited)

There are lots of questions and multiple theories hypothetically explaining it but i have few question which i did not find any answer anywhere explaining and convincing. Here are my doubts if anyone can clear me out, that'd be very generous.

  1. As hawking's method of travelling in a train with nearly the speed of light, 1 week in train is 100 years outside world and we're in the future and here arises a question, do we aged small or not at all or aging is process independent of time?
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  2. If we see an event happening in space beside us and then we start moving with speed of light (supposably), do we see that event stuck in that particular time frame forever or we see nothing at all because time gap between us will never fill as we both are moving with speed of light?

  3. Is it, even theoretically, possible to travel back in time?

  4. Hypothetically, if a human is moving with speed of light, forever, do it ever age?

These are my doubts, if anyone could help, that'd be great.
Thanks in advance.

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