"The future ain't what it used to be."

my thoughts on time travel

G

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time is something that man has deemed as a given. always progressing "forward". but what truly is this? this conception? it boils down into a temporal order within the mind. sense experiences yield a very definate chemical imprint in the mind followed by another. the 'speed' in which this process occurs and detail is different from person to person, but predominatly similar for all. nevertheless, our entire conception of "time" thus is deeply rooted in *this* very conception. the judgement between events, or sense experiences.

thus, within the bounds of our mind we can ellaborate this concept, and already have. our imaginations have speculated the possibility of "time travel", depicting time as something almost *spatial*. capable of "directional" motion. our mathematics has been formulated to 'prove' this is possible, but within the bounds of the mathematical world only.
but is this hunch correct? is time truly a natural spatial extension of the universe?

at this point, and based on our known facts and laws, 2 possibilities reside. Both yeild the possibility of time travel, yet each one has it's own flavor. The first is treating reality's "flow" of time as the simple re-arrangement of position of 'particles' or 'components of reality' relative to each other, as the result of their interactions. The second is treating time as a completely other dimension, maintaining a spatial characteristic. As if "time" is indifferent from typically concieved 3-D objects, direction, and existence. Even though one could depict them both as one and the same within a mathematical sense, only one is truly the correct choice. And what are the results of each?

the first one seems to me a limiting factor on the idea of time travel completely. It states that the flow of time is strictly dependent on the components of reality(particles) and the positions amongst each other. Therefore, the future is occurring and hasn't happened. The components that will be in the future are still here, as in now, however. This also
means the past is 'stored' in reality. this is because the motions amongst the particles themselves were brought their by a result. and once we reach the point in our knowledge to interpret what these were, in a clockwork like fashion, we can 'reverse engineer' reality. or a section of it. this would require an understanding of why time progresses. which should yeild the knowledge of perpetual motion, perhaps(just a hunch from nowhere).

The second notion treats time as a continuous spatial dimension, indifferent from the other 'planes' of 3-D. this, however, yields strange possibilities. would it not be the case that because it is a flow of spatial reality that we are traveling through that it is pre-written? from the basis of pure experience with 3-D objects, we know them to be defined within our reality. therefore, as time progresses, in the form that it does, it must be preset. "now" is much like a propagation through a preset spatial "video tape". however, this doesn't mean that the other 3 dimensions are entirely without effects on the other. in fact, the spatial time dimension concept could not function as such without them, within a mathematical sense. but there is something else tugging at me, of which truly has no logical basis.

i peronsally believe it is combination #1 i proposed. i don't know a whole lot about physics, but i think i might know what makes sense. i don't think god has it all laid out perfectly. i think he DOES have a purpose, but it is much like saying god is accurate, but not precise. which is contradictory. hitting his target, but doing it loosely. many stars, many planets, many snow-flakes, and many lifeforms, each different but similar enough to acheive the same 'purpose?'

whelp, that is what i think. tell me what you think! i think time travel is a kewl thing to ponder about.
 
Even if you could put all the atoms back into the same place with the same motion that, for example, they were in 50 years ago, would you really be going back in time?

We have all had Deja Vu experiences which may be caused by our putting ourselves in a situation that is very similar to one we had already experienced, but it is still a different experience.

I don't know that we will ever solve this problem, since the laws of Entropy suggest that it would take more energy than we have to force the universe into a particular order, even if it was an order that the universe had already experienced.

Perhaps we could "recreate the past" locally, say for example in a room or a building. This, to one extent or another has already been done in the form of museums, historic Williamsburg, Gettysburg reenactments, etc. One could also say that communities such as the Amish are an ongoing experiment in maintaining the past.

Of course, since we have imperfect knowledge of the past, we will never be able to recreate it exactly. Even if we could, we would be creating a past that is different: different in the sense that the neurons in our brain know that we are part of a recreated past rather than the actual past. This will affect our behavior and cause the past to become inaccurate. If you know that washing regularly will protect you from disease, and you go back to a time where people believed that washing regularly CAUSED diseases, would you stop washing yourself regularly?

Regarding your other idea, about time being another "spatial" dimension, I agree with you that this implies that the future (and past) are fixed. If someone ever does succeed in traveling back in time, then it will have always been true and will also be predetermined. For example, Merlin the Magician of Arthurian Legend fame might have been a time traveler. It might also be true that most of our political leaders are time travellers. Imagine the advantages they would have in competing with average blokes from the present!

The only other possibility I see is that reality is a unstable system that is forever oscillating because of the disturbances of time travellers. We only experience one reality from second to second, but it is ever-changing because of time travellers. We only perceive that history is stable because our memories change instantly from second to second as well along with the rest of the universe.
 
On the notion that time travel in the past would require the 'back engineering' of reality. I realized as i went to sleep last night nearly the same notion you stated about entropy and accuracy/precision problems humans would encounter. however, i fell into another tunnel of thought soon after as i drifted close to sleep that is interesting...

perhaps, if we could understand the 'ingredient' that causes time to flow as a result of the universe's consistenetly interacting components (if there is such a 'thing')perhaps we can alter it. alter the flow of time. like a switch. in the same manner that one can break a glass only with the right resonance, the control of the 'flow' of time would require a similar scenerio. the specific placement of various 'universal components/particles' in a manner to yeild a reverse or even accelerated effect. Yet, this would be difficult to maintain!

the further back in time you go would require more of a volumetric amount of space to cover. and with light speed being as fast as it is, you are talking an enourmous energy budget. simply MIND-BOGGILING. plus, if you started the natural process, how would you stop it?? trips without brakes suck. but the simple fact the the flow of time is really just the result of some sort of ingredient(like a force carrier particle or something) is fascinating to think about!
 
Re:Re:my thoughts on time travel

I saw a thread on recent studies to see whether or not the neutrino has mass. Mentioned was this thing called a Higgs Boson. The Higgs Boson is supposed to be the ultimate thing that contains "mass". I guess this means, then that everything with mass is composed of at least one Higgs Boson.

Now, I also heard that when the Big Bang happened, it not only created mass and energy, but also space itself.

Now normally I would think that there would be no particle that could carry "space" or "time", but if space was created along with mass and energy, and if it is impossible for us to think about time without thinking about cause and effect and one thing following another, then maybe time was also created with the Big Bang.

Now imagine that there are super-small (or super-large??) particles distributed throughout the universe that carry time and space.

Maybe your idea is correct. If these space-itrons and time-itrons are arranged in a tapestry or web throughout the universe, then perhaps we could apply the right frequency, cause the tapestry to resonate, and then listen/view the result and thus squeeze out a view (or even the full reality) of the past or future!
What kind of resonator or antennae we would need is beyond my ability to imagine just right now, but it is interesting to ponder ...

Also, Stephen Hawking's "A Brief History of Time" discusses the possibility that our perception of time is just an artifact of the entropic nature of our universe. If our universe begins to collapse, then the laws of entropy would be reversed (I believe) and our minds might be rearranged to think it normal that dead people get out of their graves, go through life getting ever younger, and then miraculously disappear inside the womb of a woman!

Actually, thinking about it a little, since the goal of most men is that from which they came, this might seem, to most men at least, to be a much more preferable conclusion to life! <g>
 
Re:Re:Re:my thoughts on time travel

I'm not sure where I read this, or who said this, but I remember reading a quote by some very well respected scientist that there is no reason that time must move forward, and it could have just as easily move backword or some other way.

So it is quite possible that the thing we are looking for is that way to control the 'switch'. But how would you begin looking for something as complex as that?
 
Re:Re:Re:Re:my thoughts on time travel

I believe you COULD be referring to Stephen Hawking's dissertation on the collapse of the universe in which (under the specific scenario offered) that at THAT time, Time would reverse it's flow.

This is hard for me to swallow, but one must remember that along with the many verifiable Theories Hawking has proffered, he also like to hypothesize in the "extreme" if you will. He always makes it very clear that he is doing this, and I enjoy his contemplations immensly. Some are not to be taken "too" seriously however which he says himself.

Frankly he is one of my biggest heroes in life. Beyond the fact that he is immensly brilliant and one of the leading minds of the 20/21 Century, the fact that he can maintain a sense of humor while totally confined to his wheel chair with only his eyes and tongue having movement is in itself the mark of a remarkable individual and speaks volumes about his character.
 
Re:Re:Re:my thoughts on time travel

heheheh that was a funny.
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