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Originally Posted by Snuffleupagus
Time travel might be theoretically possible but unless you're talking micro seconds it's still just science fiction and like traveling the speed of light it will never be achieved with matter especially living matter.
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Depends on the possible technology. Yes, if you are exposing a living creature to extreme gravity it is likely to be torn apart. But in the vacuum of space is there gravity to tear the creature apart when travelling at the speed of light? What if you're not traveling at the speed of light, but instead using gravity to bend space from a distant point and bringing it to you?
Also, if you are creating the gravity field around the creature, then the gravity within the bubble remains constant and the creature is then unaffected while the space around the gravity field is bent. You are thinking about the effect of the earth's gravity impacts us, rather than trying to understand that the force of the gravity happens outside of the envelope impacting the creature. Gravity impacts the space around the creature, not on the creature.
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Fun to think about though, there's the paradox problem like in "back to the future", go back in time to set up your parents so you can be born.
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Only if you believe in there being only one timeline in space time.
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Personally I think if something happened, it happened and can't be changed.
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That's okay. I'm kind of the same way myself. But I can't help but think of the potential for other possibilities. There are many concepts that propose alternate dimensions and parallel universes, which can then explain our experiences/ability for premonition, or deja vu, or even reincarnation. What we actually know about the universe around us is infinitely small to what we think we know. In another 100 years people will look back at what we think we knew and shake their heads.