Its a barier we will eventualy breck through and we have cotrol of.
2006-10-27 21:35:06 · 12 answers · asked by wallsprotectme 1 in Arts & Humanities ➔ Philosophy
It is pretty well accepted that time travel into the future is at least theoretically possible. There are many possible ways this could be done theoretically, but the most obvious example comes for Einstein's theory of relativity and would be that of traveling close to the speed of light. Theoretically possible, if someone were to do so in a machine that could travel this fast time would dramatically slow down for them, so that, just for example, 5 minutes for them would equal 2 days of Earth time. So they would be essentially time travelling into the future.
But travelling into the past is a hard one to crack. Even theoretically, the physics isn't there in any strong sense. There are some theories, but they are just speculations at this point, not hard theories based on established ones, like the theory of relativity.
But more difficult, perhaps, is the fact that time travel into the past creates certain paradoxes that are hard to imagine how they might be resolved. For example, if you were to go back into time and change something significant, like kill Hitler for example, that would alter the future from that moment so dramatically, that it is unlikely that any of us would exist. Each of our lives not only depends on our parents meeting, and making love at the exact time that they did (so that the correct sperm, which eventually became us, was the one to meet the egg), but their parents, and their parents parents, and on and on. The chances of any of us being alive as so astronomically tiny, that even the slightest changes to the past could put the entire present as we know it in jeapordy. If many people were travelling back in time, the present would constantly be changing, how do we work around this?
Furthermore, if past time travel is possible in the simple sense that you could go visit the past as you are now, then that would have to mean we should already have time travellers visiting us now. Because if we develop time travel into the past in the future, then certainly some people would come back and visit us now. We would also expect to see accounts of time travellers throughout history, but we do not . . . not that I am aware of at any rate. So this suggests we will not ever be able to travel back in time in that gross sense.
But who knows!
2006-10-28 03:14:56 · answer #1 · answered by Nitrin 4 · 0⤊ 0⤋
How can you travel through time when even time is just a measure invented by humans. Do you realise that certain changes in history will change the whole future very drastically? Let's say that there is a famous person now. If you time travel and murder that person, the person would not exist and her children would not exist. Then what would happent to the people who were in the present who knew that person? What about the famous person's kids? Whould they all disappear? That does not make sense. You see how just a person's disappearance will disrupt the whole "present". It just does not make sense.
2006-10-28 04:45:47 · answer #2 · answered by Hardrock 6 · 0⤊ 0⤋
If the physics are right... How do you find something that goes faster than the speed of light. Furthermore how do you put that into a reasonable sized machine. How do you program it to go back to wherever you want it to. The date year etc. How can you make it precise like that. How can you make it go into the future, precise timings. What kind of energy source would be used? What kind of inertia dampers would we use so we dont snap our necks? Those are just a few questions to that subject.... Thats why its so hard.
2006-10-28 05:19:53 · answer #3 · answered by thaheartoflife 2 · 0⤊ 0⤋
I know for a fact that time travel is possible. I've been doing it for years. I've been slowly traveling into the future for over 28 years! Oh! the things I have seen.
2006-10-31 07:34:03 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Probably because we can't cure Herpes or the Common Cold, and conceiving of a machine that surpasses the speed of light is a fantasy.
2006-10-28 14:59:22 · answer #5 · answered by -.- 6 · 0⤊ 0⤋
If backward time travel was possible, we would've seen someone from the future by now.
2006-10-28 15:16:12 · answer #6 · answered by Its not me Its u 7 · 0⤊ 0⤋
Come back half an hour ago and I'll explain it to you.
2006-10-28 04:40:11 · answer #7 · answered by vinny_the_hack 5 · 1⤊ 0⤋
I believe in that, too, somehow, but it has nothing to do with science means.
2006-10-28 06:55:20 · answer #8 · answered by Cheshire Riddle 6 · 1⤊ 0⤋
People fear what they dont understand and get mad at that which they can not figure out.
2006-10-28 08:21:47 · answer #9 · answered by Mike 3 · 1⤊ 0⤋
you discover it and prove it..then I'll be willing to comprehend it..is this kip?
2006-10-28 04:37:12 · answer #10 · answered by ? 3 · 0⤊ 0⤋