We were discussing in my earth science honors course how it has ALREADY been proven that we currently possess the adequate technology in today's world for time travel. While that is a fascinating prospect, there are some areas that run into the gray area as far as possibilities is concerned, and I was wondering if anyone in here would be interested in talking about it or if there are any people scientifically inclined on this subject. :] {That would mean you are studying it}

So I understand through the concept of quantum physics that we CAN travel BACK in time, but our only problem would be COMING back, which hasn't quite been resolved yet. But I was thinking back, and wondered- if you were born in say, 1973 for instance, could you travel back in time to a period before that date, like the 40's? Or not, because you wouldn't have existed...

Also, if you were to travel back to a past time when you WERE around but just younger, would there be a past version of yourself in that time or not because you are presently there?

Food for thought, anyone? Happy Valentines, by the way. :]

Thoughtfully Yours, --//xo;Ace

Information about time travel.

So Quantum Theory does not allow for time travel to the past except in special geometries of space. To understand whether it is possible for a future person to travel back in time and retain their identity (as opposed to 'becoming' your past self) we would have to understand whether the universe is limited by time. If information cannot exist before the time it is created then a future person could not travel back in time while retaining their 'futureness'.

For example everything about you now is information - your physical, and mental/emotional state describes you as the person you are now. But that information did not exist 10 years ago (if the universe is causal) so you could not take it back with you if you travelled back in time to meet yourself 10 years ago.

I personally do not think travel back in time is possible, but we don't know enough to definitively state that.

well...I'm aparently behind the times. The last I heard anything about time travel, was that it was thought to occure through a "worm hole". To my understanding, scientists have been able to create these "worm holes" in controlled environments, but they were neither stable, nor large enough to even step into. I'd never heard anything about actually being able to travel back in time. As Leonardo states....it just doesn't sound probable. But..like I said... I'm aparently behing the times.

i cannot travel through time but i Can see the future whenever I have visions that come and go whenever they please due to a traumatic experience two years ago.

I travelled through time once.

Sucked.

Yes time travel is possible. But only if you are a tiny particle who wishes to see what it was like 1000th of a second ago in laboratory conditions. Also it can't go back any further than process was started. I don't think we will be going to visit the dinosaurs anytime soon.

I don't think that "we" can travel back in time. I think that Purplestuart is right about this being possible for tiny particles. You have to remember that Quantum Physics is a theory.

How do they know that these particles are going BACK in time?

Well we don't have the technology to make time just to messure the concept.

Why argue you silly git when...ugh why are people so stupid.

As I see it there are different types of Time Travel. I will be undertakeing a study through the use of crystals. This is more in line with your class study. However I have taken a class in Time Travel that is more like a visualization experience for the purpose of energy transformation. That would be the retrieving past prior life experiences so that they can be applied to my present day circumstances.

If any one is seriousally interested, I will post a description of that class in this thread.

Ace I am pleased to see the concept(s) studied. I tend to think science and metaphysics are quite different yet necessary areas for valid investigation. I would suggest it useful to include both areas or views of reality as helpful.

I hope you had a nice valentines day.

John

They don't. For all they know they could be slipping in and out of other dementions or fizzling out and new ones being created or moving forward in time faster than we are.

These particles are fractions of fractions of neutrons which is a fraction of an atom. Atoms are 99% empty space. Neutrons 99% empty space. Quarks are 99% empty space. The particles that make up quarks have not been fully studied because they come and go as they please. Some physisist are working on the string theory but I haven't read enough on that to comment.

Time travel, 2 known ways. Travel at the speed of light. You've slowed down time for yourself but you've lost earth into oblivion of space. Matter would fall apart long before you could reach the speed of light anyways. Or bend light around you, Einstien and Tesla had theories that light, space, and time were relevent (which I strongly believe) If you were to bend one(light) the others would bend correspondingly. I believe that is what they were trying to accomplish in the Philadelphia experiments. We do not have the knowlege or technology to keep anything stable while this is done. (Though there alot of conspiricy surrounding the Philadelphia experiment I believe that the experiment was conducted we horrific results. Details cannot be known because conspiricy theorists have exaggerated the facts and the Navy has covered their tracks)

In the 1930's Nikola Tesla got involved with a group with was experimenting with moving through the Time/Space continuum. In the early 1930's, the University of Chicago investigated the possibility of invisibility through the use of electricity.

In 1939 this project was moved to Princeton's Institute of Advanced Studies. There they were able to make small objects invisible. They presented this technology to the government.

I believe this is all tied in with the possibilty of time travel.

Oh wow. That's such a scary thought that the government has the invisibility factor. They abuse every other bit of knowlegde given to them also. I can only imagine what they've been doing with that little bit of information for the last sixty some years.

12:04 Scientist1: Oh look! There's that particle we're going to send back here in five minutes time.
Scientist2: Yeah! Cool. Now we've got two.

12:09 Scientist1: Right, lets send it back to see if we'll see it again and remember it.
Scientist2: It's on its way now.

Time travel is one thing I don't believe is possible and I have zero interest in going back in time, I don't see how anyone can claim something like this as possible.

A scientific theory is something which has been tried and tested, coincides with all current observations, and is able to make accurate predictions. It has to fulfill scientific method. Unlike in common use of the word where a theory is just essentially a 'guess', or conjecture, without any substantial evidence to back it up.

Remember that theory of Relativity is just a theory, as is the theory of gravity.

This might not have anything to do with the topic but it was just something I was thinking about while driving today. What if it was just you and another car driving down the same straight road that goes on for miles and miles. Could you go fast enough that it would look like you were going backwards to the other car?

Of course, you would still be there! How do you think the old Biff took the sports almanac to the young Biff.

Haha, I am kidding, obviously.

Time travel is not possible. Time is a man made concept, not a physical entity like space or water or air that can be traveled through. There is and only ever will be one moment of time in the physical universe. The past and the future don't exist. There is only what has happened and what will and/or can happen.

What year is it actually? Is it really 2007? No, it is not. So then, how could we time travel? The very idea of time travel itself defies the very point of existance. It also means that the future has already infinitely happened which would mean there would be up to an infinite amount of time travelers by now which would have visited us several times by now. Time does not slow down the faster you go because time is incapable of "slowing down". It always moves at the same exact pace no matter what.

Theres so many reasons why time travel isn't possible and even more reasons for why it shouldn't be possible.

Steven Hawking said , that everytime you like at the stars , you travel in time . You are looking at a very far past .

Sama

I, for one, am very interested in time travel, and have read several books regarding the subject, one of which is H. G. Wells' The Time Machine.

At any rate, I seriously doubt that we could send a machine through time. It would either die, or disintegrate. As for traveling back 65,000,000 years to see the dinos, that is implausible. If anyone has watched Quantum Leap, it could be possible to "mind travel" through time - or that is, leap into another person's body - and use telepathy. Switching bodies, nonetheless. Now, whether this can be done is unanswerable.

Another good book to read is Kurt Vonnegut's Slaughterhouse-Five. Aliens can teleport people through time.

Yes, I know that but thats only because it takes so long for that light to reach us but that is hardly traveling in time since you are still viewing those images in the present.

There is also the theory of Many Worlds. While we can all see the logic that you would have a paradox if you went back and shot your grandfather, because in the Time as an Arrow concept, if you did, you would never be born in the first place, so therefore you can't go back.

There is another school of thought on this matter. It is called the Many Worlds theory, and is supported in the math of string theory. In this concept, you go back and do the foul deed, and no paradox is created. Because you could never be born to do something that you obviously did, the universe makes a duplicate of itself. The act of this murder changes nothing in the universe that you left, where your grandfather went on to sire 9 children, and you simply vanish from there , never to return. You are now trapped in another universe where you will be arrested and hung for the murder of a total stranger.

And even if you are so wily as to escape back to your temporal transporter and flit back to the 21st century, you would still not be 'home'. You would now be in a place where you never existed, had no family, and which might be changed to a great degree from your expectations due to the fact that the life you took 100 years before had failed to make it's contribution to the world.


If you follow this line of reasoning out, you realize that EVERY decision creates a new universe. Each time you choose to go or stay, to turn left or right at the stop sign, to watch channel 8 instead of channel5, you create a new universe in which you made the other choice. Infinite universes created in which EVERY possible action is done. Have you ever felt the urge to strangle your boss for some stupid thing or the other? Somewhere you did, and in some of those places you got away with it and in others you got the needle.

Perhaps it was for this reason that wise men have thought that guilt was not just in what you did, but in what you thought of doing as well.

I consider sleeping to be time traveling...I fall asleep and I'm 6 to 8 hours into the future.

My opinion of time travel is this.. that you cannot go back into THE past. You can go into a future that resembles the past, but not the past.

Going to the future is much simpler, you are only slowing down time for you as it passes normally around you. According to relativity that would be achieved by moving extremely slowly. It's interesting to think of time as a malleable factor and not as an absolute, relativity brings to light the idea that the way time passes is subject to change based on speed or a curve in the space-time continuim. This would mean that the passage of time for us is defined by how our solar system is orbiting through space. We are constantly moving at likely millions of miles per hour, that decides the passage of time for us. One interesting thought, is that half of our year might literally go faster than the other half, because during half of the year earth is opposing the sun's orbit and half of the year the earth is going with it. We don't notice the difference, because we all experience it. Although of course, that's just my speculation.