Time Travel ?

Question

I have this theory ... I don't think we ever got visited by the future .. why? ( i mean eventually maybe people discover in the latest future how to build a machine time ) .. Well we maybe weren't visited because people couldn't travel before the time machine was invented ... and so they could only travel in the future and back into the time when the machine were to be invented. And since we haven't built one yet there is no one from the future to be seen.
Second ... theory is that humanity was destroyed before anyone could of built such a machine, and of course maybe we will never get to discover such a technology.

Well tell me your opinion ... it's more like a sci-fi topic but i'm sure you guys are more informed about this thing than i am :).

inside () i meant to say time machine :)

Answer 1

http://www.youtube.com/watch?v=GHC8z6ULs18

if string theory is true, time travelers basically create a new dimension of space time they exist. breaking off from the original. hard to explain, but thats quantum mechanics for you.

http://www.youtube.com/watch?v=NS1-SZ2L81k&feature=related

the faster you travel in certain gravity fields the more time slows down.

satellites have this problem. their clocks are milliseconds slower each year due to it. programs are included in their software to make up for this, so WHOEVER said time is on a single constant plane, doesn't do their homework.

http://metaresearch.org/cosmology/gps-relativity.asp

Answer 2

Stephen Hawking said that the lack of tourists from the future was evidence against time travel too. Your theory is not sci-fi at all.
There is a proposed way of traveling back in time, by creating a wormhole connecting not only 2 points in space, but also 2 points in time. A proposed time-travel machine using a traversable wormhole would (hypothetically) work in the following way: One end of the wormhole is accelerated to nearly the speed of light, perhaps with some advanced propulsion system, and then brought back to the point of origin. An observer entering the accelerated end would exit the stationary end when the stationary end was the same age that the accelerated end had been at the moment before entry; By entering the stationary end, you would travel to the past, just at the moment of the creation of this wormhole. This could provide an alternative explanation for Hawking's observation: a time machine will be built someday, but has not yet been built, so the tourists from the future cannot reach this far back in time. So you are well accompained in this hypothesis of yours, by the most brilliant mind in astrophysics in the whole world!.
As for your 3rd theory: I hate to say it, but it's the most likely one.

Answer 3

Both ideas have been thought of.

It is more of a philosophical question than anything else (given that time travel is still deemed impossible and, if it were possible, would create all kinds of paradoxes).

1) The idea that one cannot travel further back than the time that the machine is created would imply that the existence of the machine at a given time is necessary to "anchor" the time destination.

2) If humanity is destroyed before the invention of the time machine, that would also be a suitable explanation (but very difficult to verify).

3) It is also possible that time travel is impossible. Therefore a machine cannot be invented and visitors from the future will never arrive here/now.

4) It is also possible that time travel creates so many problems that the inventor of the time machine went back and killed himself just as he invented the time machine...

The application of Occam's razor would guide us to use the third hypothesis, until we have evidence forcing us to abandon it.

Answer 4

I'm not sure if time travel will ever exist, but I did find a loop hole a long time ago that seems to make sense. When a person jumps forward in time they no longer exist on the plane they originated on for the amount of time they are gone. This would validate any way of traveling back in time. You would only be able to travel to the gap between the time you left and the time you return to this plane of existence. Only problem is that you would have to cease to exist when your future self finishes the jump. So in essence time travel to a possible future may be possible (but highly improbably), but traveling backwards will kill you. I wouldn't worry about Temporal Mechanics, they only cause you headache and loss of life! LOL You want to travel on a different plane? Try the astral plane! That's a ride for ya!

Answer 5

Sir:

Every time I travel, it requires time to get from here to there.
So I am a time traveler. i am not adept at, nor do I use any
special technology to do my traveling other than a 1996
Chevrolet Blazer Automobile or my own two feet.

I can travel forward, or backward over time, but I hasten to
point out that travel backwards can be quite hazardous in
that I do not have eyes in the back of my head, and it is
quite tedious to keep looking over ones shoulder all the time.

The idea that I could somehow increase the speed of my
travels and get where I am going faster than normal is indeed fascinating, but somewhat out of the question for me in the
financial sense. I cannot afford first class air fare, much less
visions of the future.

I would not be complete in my response to you if I failed to mention that I can also move lateraly in time if instead of
working my feet as "one in front of the other", I use them
to move to the left, or to the right. Over a period of time I can move pretty far that way, and often do this when trimming my hedges lining the driveway and front of the yard.

I have no desire to go back into time, because I would just be an old guy looking at all my young friends. Now, if you perchance happen upon some little gizmo that will strip off 40 or 50 years of age I would be more than pleased to hear from you. Advise where one of these devices can be purchased and the estimated price. I am sure we could work something out.

Zah

Answer 6

All realistic proposals for time machines have the property that you can't use the machine to go backwards in time beyond the first time that the machine is turned on.

In other words, it may be possible to create a "closed timelike loop", but the creation of that loop requires a pre-existing distortion of the spacetime manifold by the time machine.

Answer 7

It is impossible to time travel but possible to see what happened in the past. If you anywhere in space that is 5000 light years away from earth and use a powerful telescope to zoom in on earth, you will see what happened 5000 years ago on earth. We will never accomplish this task.

Answer 8

When you come to understand that time is a man made thing you will stop wondering about such things. If you wish to know what it is all about, contact me at
johnandeileen20002yahoo.ca
I will attach a five page article I have prepared on the subject in my reply.

Answer 9

What is time does not exist, and it is merely a human creation due to memory of previous events - meaning there is only a single, present plane and the objects that move within it.

Answer 10

I have this HYPOTHESIS that all questions regarding time travel around here are troll entries. Every new one confirms my hypothesis even more... there is not one new thought among these questions and they all appear to be catered to get attention. Just what one would expect from a troll.

Prove me wrong.

:-)