Delacorr Posted June 15, 2003 #1 Share Posted June 15, 2003 In this, I do not express any technical issues in the actualy process of gettting from one point in time to another but it may be possible. I am assuming you out there know the basics of time travel and what some things mean so I don't want to repeat them. Let me get straight to the point. Time travel may be possible. A main problem people have with time travel is known as the Space-Time Continuum. This means that if you do something in the past, it will therefor change what happens in the future. I agree with this but have figured that time travel is still possible. The only problem is that if you go back in time, you cannot return to where you were in the future. If you live in the past after you have come from the future, you will realize that the time that you are living in and the future are playing out simultaneously. Things you do may affect things that happen in the future and in the time that they are living in, but it will not affect you and the time you are living in so therefor, everything remains normal. Although it may affect their living, you will never know because you will be living anormal life. This is a confusng and diffucult concept for some to conceive but after thought, it makes sense. I do not know how or if people can go back in time to begin with but if they do, this is what will happen. This is just a thought and please give me your feedback on whether you agree or disagree. I am always open to constuctive criticism! Link to comment Share on other sites More sharing options...
j6p Posted June 15, 2003 #2 Share Posted June 15, 2003 Delacorr, I don't believe backward time travel is possible. One reason is that the atoms in the time travelers body would not have been formed yet. I don't think forward time travel is possible because the atoms in their body would have become a part of the future in some other form, as part of another substance. Time travel is an interesting subject but the paradoxes always mess things up Link to comment Share on other sites More sharing options...
Space Moose Posted June 15, 2003 #3 Share Posted June 15, 2003 One issue with Time travel that I have thought might be a big problem is the fact that the calculation that would be needed to position someone at that exact spot on earth when it does not come anywhere near to the same spot in the universe. Basically, the earth is moving at a million miles per whatever around the sun AND the sun is being pushed away from the centre of the galaxy at a million miles per whatever - so to make sure that you appeared at the same "place" on earth some very precise calculations would be needed. Since the good folks at NASA (some of the best minds in the world I would think) make occasional miscalculations when sending things to Mars, I would be more concerned that a time traveller would pop up in the middle of space or perhaps inside a mountain than the time traveller meeting a pervious/former version of themselves. Link to comment Share on other sites More sharing options...
Homer Posted June 15, 2003 #4 Share Posted June 15, 2003 A main problem people have with time travel is known as the Space-Time Continuum. This means that if you do something in the past, it will therefor change what happens in the future. That is not what is meant by Space-Time Continuum. The Space-Time Continuum is nothing more than the 4 dimensional coordinate system in which physical events are located. I don't think forward time travel is possible because the atoms in their body would have become a part of the future in some other form, as part of another substance. Forward time travel is possible, and that is a fact that can't realistically be argued with. We are all travelling forward in time right now. By the time this post is read, it will be further into the future then when it was written. Link to comment Share on other sites More sharing options...
Kismit Posted June 15, 2003 #5 Share Posted June 15, 2003 Homer your so clever Actually I just wanted to add a little to this part of the discussion too . Courtesy of j6 I don't believe backward time travel is possible. One reason is that the atoms in the time travelers body would not have been formed yet. I don't think forward time travel is possible because the atoms in their body would have become a part of the future in some other form I personally don't think that time travel paradoxes would be a huge problem . I am how ever interersted in the idea j6 put forward . It is likely that your body may experience physical changes through time travel . Could it regress back into infant form ? Could this become the comercial market for time travel ? The secret of eternal youth perhaps... Link to comment Share on other sites More sharing options...
Aslan Posted June 15, 2003 #6 Share Posted June 15, 2003 I'll get corrected in short order, here, I'm sure, but is it not true that there is nothing in physics which theoretically rules out the possibility of time travel? If a mass of sufficient size is set spinning at sufficient speed then it traps time at its 'event horizon' the same way that a black hole traps light. It is therefore theoretically possible to travel back in time to any point after the mass was set in motion, but not to any point before, and it's not possible to venture beyond the mass' area of influence. Link to comment Share on other sites More sharing options...
Althalus Posted June 15, 2003 #7 Share Posted June 15, 2003 You can actually travel through time very easily, to see it just get 2 people, both with watches on that are synchronus to each other. one gets on a plane or some other fast moving object, and move for a predetermined distance, at a set speed, then when you compare watches, they will show different times. As the one in the fast moving object will have had time move slower than that of the person on the ground. Link to comment Share on other sites More sharing options...
Aslan Posted June 15, 2003 #8 Share Posted June 15, 2003 What's the difference between a theorum and a theory? Link to comment Share on other sites More sharing options...
Delacorr Posted June 15, 2003 Author #9 Share Posted June 15, 2003 What's the difference between a theorum and a theory? Aslan... Theory - a plausible or scientifically acceptable general principle or body of principles offered to explain phenomena; a : a hypothesis assumed for the sake of argument or investigation b : an unproved assumption;the analysis of a set of facts in their relation to one another. Theorum - an idea accepted or proposed as a demonstrable truth often as a part of a general theory. Link to comment Share on other sites More sharing options...
Aslan Posted June 15, 2003 #10 Share Posted June 15, 2003 Cheers Delacorr. You live and learn. Link to comment Share on other sites More sharing options...
Delacorr Posted June 15, 2003 Author #11 Share Posted June 15, 2003 Now I also want to know some of your own theories on time travel too...good to share stuff like that...what do you think, not what have people told you... Link to comment Share on other sites More sharing options...
j6p Posted June 15, 2003 #12 Share Posted June 15, 2003 Thinking about this I realized that although time advances at a regular pace and that rate can't be altered, it is possible to change the place on that timetable that something is positioned. As an example: if a ball was rolling down an incline it would take "X" time to reach the bottom but if additional energy was introduced the ball would reach the bottom ahead of the time it should have gotten there. The same principle could be applied in reverse. If energy was applied or taken away to slow the object it would get to the bottom at a later time than it would without any external interference. So I guess it could be said that although the rate of time flow can't be altered the position of an object on the grid can be changed and that could be loosely interpreted as a form of time travel. Link to comment Share on other sites More sharing options...
Aslan Posted June 15, 2003 #13 Share Posted June 15, 2003 I don't believe that physical lets-all-go-back-see-the-dinosaurs kind of time travel will ever be possible, or at least routinely possible. The problem is that any time traveller has no right to right to think of his own time as 'the present'. To agree with physical time travel you first have to agree that each thing in the universe has an infinite number of selves for the infinite number of 'time divisions' in its life. And each of these infinite selves has a past, present and future, since each is a separate being. The result is an insane universe with everybody and everything infinitely fragmented. But there are plenty of strange stories about people dreaming the future, or seeing the future, or seeing the past, and there is a lot of circumstancial eveidence for 'psychometry' - the ability to somehow 'see' the past of an object only by holding it. Now this I'm slightly more prepared to believe in, that we all have some mental faculty that allows us to travel back and forth in time. Link to comment Share on other sites More sharing options...
Aslan Posted June 15, 2003 #14 Share Posted June 15, 2003 And was that a theorum or a theory? Or a hypothesis? I'm still a bit fuzzy there. Link to comment Share on other sites More sharing options...
Delacorr Posted June 15, 2003 Author #15 Share Posted June 15, 2003 Theorum - an idea accepted or proposed as a demonstrable truth often as a PART OF A GENERAL THEORY. Well if you are talking about mine, it was a theorum..time travel is already a theory, it has not been recorded on happening, but it has been thought up...my theorum is just a "PART OF A GENERAL THEORY" ya see? Link to comment Share on other sites More sharing options...
Aslan Posted June 15, 2003 #16 Share Posted June 15, 2003 Can I just call it an idea? Link to comment Share on other sites More sharing options...
Homer Posted June 15, 2003 #17 Share Posted June 15, 2003 Thinking about this I realized that although time advances at a regular pace and that rate can't be altered, it is possible to change the place on that timetable that something is positioned. j6p, the rate at which time advances can be altered, as Althalus accurately explained Link to comment Share on other sites More sharing options...
j6p Posted June 15, 2003 #18 Share Posted June 15, 2003 In Althalus's description the "fast traveler" does in fact travel forward through time at a different rate than his twin who remains stationary. So as far as Althalus's description goes, I have known about Einstein's "time distortion as we approach the speed of light theory" for some time now and I can't seem to get a handle on it. I'm claiming that the universal arrow of time travels at the same rate, forward only, for everyone and everything. But individual events can go different rates, again forward only, along with this arrow. As an example, put a person into suspended animation for 50 years. They didn't travel at all but when they wake up they are only hours older but everything else is 50 years older. What I am saying is that, that could be a form of time travel. Link to comment Share on other sites More sharing options...
Homer Posted June 16, 2003 #19 Share Posted June 16, 2003 I see what you mean, and I agree with you. I believe in forward time travel only, with the only possible exception being to look into the past. Travel back in time as observers only, and not capable of actually interacting with anything Link to comment Share on other sites More sharing options...
Delacorr Posted June 16, 2003 Author #20 Share Posted June 16, 2003 The next step of course is actually getting there...going on a plane and changing time back a few minutes wont do you any good.. Link to comment Share on other sites More sharing options...
Homer Posted June 16, 2003 #21 Share Posted June 16, 2003 I'm not sure if you have checked out the topic of time travel in the Unexplained Mysteries Index. It explains the theory of reverse time travel, and can be viewed HERE Link to comment Share on other sites More sharing options...
Delacorr Posted June 16, 2003 Author #22 Share Posted June 16, 2003 Thanks for the link, Homer! Link to comment Share on other sites More sharing options...
aerialhippo Posted June 17, 2003 #23 Share Posted June 17, 2003 This got me thinking say you do travel through time and hypothetically you meet yourself from the "past" (thank you aslan) my guess is you would probably die from shock (both selves) therefore terminating all knowledge of the time travel you have creating, and just for kick let's go deeper into this hypothetical situation so therefore now that you have died you will not have gone on your "excellent" adventure and then you wouldn't kill yourself like that. so you wouldn't die. What happens now? Do you make the same stupid mistake, or do you take a different path, and if you do make the same stupid mistake does this loop continue? Gives a person chills don't it Link to comment Share on other sites More sharing options...
schadeaux Posted June 17, 2003 #24 Share Posted June 17, 2003 OK, my 2cents on time travel. Wonderful idea. Don't work in reverse. Homer, j6p, and Al are correct. Maybe you guys can help me out here. There is some law of physics somewhere that says that all energy (taking matter as a form of energy) is finite, it cannot be created or destroyed, added or subtracted. This is what makes traveling backwards in time impossible, if not catastrophic. By moving an object back in time you would be breaking both the rules: no adding, no subtracting. Take the classic time travel case. Dude builds a time machine. He steps in and "POOF" goes back two days into the past. Problem 1: He has subtracted himself (and his machine) from his "present time," leaving a void. Not so big a problem? Maybe, but he has left a void in the finite universe. What fills it? To fill the void, theoretically, the universe itself would have to contract. Problem 2: He has added himself (and his machine) into his "past time." This is where it gets funky. No two objects can occupy the same space (as space in a universal sence) at the same time. Corollary: No one object can occupy two spaces at the same time. There is now one dude in two places at same time, done without mirrors or clones or twins. The universe would have to expand in order to accomodate the added energy (mass). Problem 3 (if the universe ain't been streatched all out of shape yet): There is no dude in the future that is approching. What happens in two days when the one dude in two places at one time meets up with the "present time" in which there is no longer a dude? Would both cease to exist? Any help here? Link to comment Share on other sites More sharing options...
Sageghost Posted June 17, 2003 #25 Share Posted June 17, 2003 What if, instead of trying to 'transport' a human being into the past with all of the associated problems/difficulties etc.. as previously discussed, it was somehow possible to see the past without physically going there. Like some sort of viewable 'portal' where the normal fabric of space/time has been altered, enabling humans to safely view the past with no danger whatsoever of altering the present (or is that the future?) Remember that old TV show 'The Time Tunnel' where the scientists could see the travellers in the past? That concept is where I'm coming from, but not necessarily by building a giant spinning tunnel. Maybe a vacuum-sealed room where some manipulation of the fabric of space/time could be manipulated somehow? Link to comment Share on other sites More sharing options...
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