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Pretty much every time travel related movie or novel has shown the horrible potential of time travel. Ray Bradbury's "Sound of Thunder" always comes to mind as a classic reason of why time travel is a horrible idea. (The premise being that people travel back in time to 'big-game' hunt a dinosaur, but accidentally set off a chain reaction that destroys the future as we know it). Not to mention other notable examples like The Time Machine by H. G. Wells, The Time Traveler's Wife, or the Back to the Future series have pretty much killed the idea of time travel for me.
I agree with those posters above who indicate that even if time travel were possible, it would be unwise. Each of us are given the present to savor, enjoy and experience to the fullest. I don't think any of us would be comfortable with the thought of some person or thing from ten thousand years in the future suddenly showing up on our streets. Such a person would be as alien to us as if he/she came from another planet. The same is true if we were the time travellers. It's best to leave well enough alone, and not interfere in the lives of those who have gone before us, or those who are to follow.
Isn't it interesting that when we speak of time travel, we only speak of ourselves, not those in the future for whom it might be a more reasonable possibility?
I think it would be amazing to time travel, but the films depicting the problems associated with it are frightening. This reminds me of Alan Lightman's Einstein's Dreams. When time placed people in places other than where they belonged, life was affected. I guess it is simply about making the most of what we have now. (Reminding me of Maupassant's "The Necklace.")
It's impossible for me to imagine time travel as a reality. It is just too complex an idea. I don't think that the past even continues to exist after we experience it, so there wouldn't be anything to travel to.
I don't know if time travel could ever be theoretically possible from a physics point of view. But even if it were, I do not think it truly could be done. I do not think that the laws of the universe could possibly include going back and forth in time. Doing so would be too incompatible with the linear time in which we live our lives.
Time travel will never be possible. After all, time is relative and a concept that humans have created, and time travel itself is a concept that humans have created to cope with the feelings that we wish we could go back and change something that has happened. From some perspectives, time travel could be incredibly dangerous because altering the past could alter the future in detrimental ways. From other perspectives, however, time travel would just create a loop- if someone goes back in time, it means they will go back in time in the future, and that they have gone back in time before, if that makes sense.
As far as going forward in time, I, for one, would never want to move forward because I would be missing out on things and speeding up my already short life. I would never want to skip any part of my life. Even the hard parts help to make me who I am.
Time travel? . . . I've often thought of going back and changing something in my past if I could, but then again, what has happened in the past is in the past and makes me what I am today. Those mistakes, those triumphs, those pains . . . they've given me a storehouse of experience! You hear people say, "I wish I could go back and fix my past with what I know today," but what probably would happen is they would mess up their future by altering their past. And knowing myself, I'd probably make a bigger mess of it the second time around.
I've never wanted to go ahead in my future. It scares me too much and I don't want to know!
At the moment time travel isn't possible, and I for one hope it never is. Going forward isn't that big of a problem, but I hate movies where people go back in time and then disturb the present by changing things in the past.
Travelling forward in time is possible. It just requires a lot of fuel as one must reach speeds around 98% the speed of light. This allows anything that travels at that speed to have slower time movement while the space around it continues at a normal speed which is much faster in the perspective of the person moving at that speed.
However, I believe that travelling back in time is impossible according to the theory of general relativity as it defies the law of causality which states that a cause must occur before an effect.
As mentioned by Pohnpei in post 5, time travel is theoretically impossible as it negates the basic rules of not only physics but nature as well. One cannot go back in time but one may consider another aspect - observing what has happened in past with one's own eyes. As we can see the condition of celestial objects today what it was thousands and millions years from now, if we get to a distance in a short time to those celestial objects, we can see the our earth and life on our planet thousands and million years back.
This can be how the God will show us what we have been doing in our life on the Day of Judgement.
... and he will inform you of what you did. Quran 62:8
Can we deny seeing it if it happens?
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