Time travel

gibbo

I'd like to ask you all. What are your thoughts on this subject? I personally find the Multiverse theory more logical. That is to say, upon travelling back in time you in actualy travel to another universe were an alternate timeline to our own has acted out. For example, in our world your farther may have lived to the ripe old age of 83 before being dying. You, in this universe, travel back in time to kill him. However instead of breaking the barriors of time... You break the barriors of Space-time and emerge in an alternate timeline were he died at 23, before you were born. He died in this timeline because you, from the timeline we'll begin to call "A", killed him. Now, as he is dead, you, in universe "B", was never born. However, this is a seperate universe, acting out a seperate timeline, so you, "A", are not affected by this and henceforth remain alive. The bottom line is that there are an infinite number of these seperate timeline universes in existence, and countless are created for every choice we make.

When thinking of it like this, it may be possible that "ghosts" and other paranormal goings on, are merely the boarders of these alternate timelines thinning, allowing our Earthly senses to become aware of them, if only for a short while. Say, Fred died, We all loved Fred, he rocked.. But wait! In an alternate timeline Fred still lives! And you ran out infront of that car instead of him! These two seperate timelines may at one point come close to eachother, the boarder between them thinning... This causes the living Fred of universe B to be seen temporarily in universe A. And the living you of Universe A to be seen by Fred in universe B. Ghosts anyone?

qsmith

I don't think we will ever see time travel in the way that the movies play on it. The whole problem is that we can't move back in our own frame of reference, to our own past. What we may be able to do with moving large distances at close to the speed of light, is to age at a different rate from others that remain at home, and return after everyone you have known has died....

J-Evil

Technically, time travel is possible... just hop on a plane and head either west to go backwards some hours or east to go forwards some hours through the time zones. Genius, isn't it? :p

anyways on a more serious note: in order to actually be able to go back or forwards in time through great amounts of it you would have to be able to travel faster than the speed of light itself...

loryl

Not necessarily faster than the speed of light. In fact, some would argue that faster than light speed travel isn't possible. The faster you travel, the more slowly time moves for you, so essentially, you could "time travel" into the future.

newolder

gibbo>I'd like to ask you all. What are your thoughts on this subject?

See :: http://www.frihost.com/forums/vt-70138.html

KronikSindrome

I think anything is possible....

I think someone mentioned that aging faster than others could be possible,
if one travels at the speed of light....someday maybe...time can be made 'relative'.....
but to move in and out of time seems quite unliekly.....

but I also think that time is a neccessary aspect of this 'place. plane, realm, dimension'
I think it serves a purpose....and I also think that there is a 'place, plane, realm, dimension'
where it does not...where moving forward and backward are both quite regular.

of course these are just my thoughts....

-shrugs- if it ever becomes possible I'm going back and killing the person who created
'disco', 'hello kitty', and the olsen twins.... Twisted Evil

(sorry for those of you who like any of the above)

Dean_The_Great

Time travel forward? Piece of cake. Just accelerate yourself to near the speed of light (can't go any faster than that... so says Einstein) And then you just slow down and and poof! You're in the future. Ah, the wonderful aspects of relativity.

Time travel to the past? Well that's downright impossible. I mean, we can theorize all day about the theories of the mega-verse, or the paradoxes of the non-megaverse theories, but ultimately it just can't happen. Why? Because time doesn't exist. It's an invention that we created because we couldn't figure out any other logical way to do it. You can't travel to the past, because the past doesn't exist. It was gone the moment it came.

Time is also relative to speed. Which makes the whole relativity thing work. I've marveled many times at the concept of time travel. I would like to believe that there are trillions of universes with trillions of outcomes, but unfortunately the laws of physics don't seem to have any basis for hypothesis.

wxzt

Time travel is very unbelievable.
If someone will die with a car accident, he knew it three days ago. He can stay at home for three days and no any car accident will happen.
That's wrong.

We can see many stars at night, but they are very old. They come from billion years ago.
So now we are in billions years ago of that star's history.
Is it really strange?

If I can travel the time and I kill Hitler when he is a baby, What will happen the next sixty years?

ThreeRight

You can SEEMINGLY slow down time, and you can SEEMINGLY speed up time, but you CANT go back in time... Time is RELATIVE, just like EVERYTHING else! Theres a theory that states that, faster you move time slows down... but then again. It seems like it slowed down for you, but for everyone else its the same. Relative to you, its slowed down... Relative to everyone else, its the same and you just sped up.
Or, was it vice versa? anyways, Time is relative!

Also, the universe is not keeping record on what is going on. Its either, something is there.. or something ISN'T there. 1 or 0...

Time is defined by what we remember... when we say an object WAS there, and now its somewhere else. THATS TIME! Its all in our heads... a memory...

bonestorm74

I think in terms of the movie kind of time travel, this isn't possible. I'm sure if the technology was there in the future, we'd have some kind of evidence of it now. A traveller of some kind would probably show up to let us know about it. And of course, there are the issues of the multitude of paradoxes that crop up.

web_harman

time travel is possibel rgith from the time since first time machine can be built

poly

I don't think the human brain is really able to understand this kind of thing, as we are too used to time as unalterable.

trousersalive

as you can never predict what technologies lie around the corner. Or what bits of the physics of the universe we dont currently understand, I have no problem thinking that time travel might be technically feasible. However, the obvious point against it is that if some time in the infinite future time travel was invented, then we would have experienced travelers from the future long ago, and in fact there would have been evidence of them for all history.

dlseven777

I would have to agree with the nay sayers. And for reasons already posted. If it indeed is possible in the sense of most movies. Then as greedy / cruel mankind can be at times, I believe there would have been some evidence of a time traveler from the future. As of now, nothing. Sure you can say it might have been covered up. Or maybe it is policed in a manner such that they can undo changes to time.

But nothing is 100% secure. As evidence of that is the many judicial systems. It would be great if we could get all the bad guys all the time and never make a mistake. But that just isn't possible. And from the standpoint of governing any kind of time travel. I believe it isn't possible, because we should have had some sort of evidence of visitor's from the future.

However, I suppose it could be argued that the amount of time you can go back is limited, and our existence just hasn't matured enough. But I would like to think that, eventually however long into the future it may be, that they will eventually master it and then be able to travel to any time. Which then goes to my original argument. Where's the evidence?

I trying to argue from a purely non-scientific point, with logic that I tried to make clear, but most likely failed in the attempt Smile

kk_loke86

This is just my personal opinion.... I think that time travelling is only possible if someone make a tight decision to travel back into his past time. If you really want to prove the time travel, you tell yourself in the future is such technology is possible, I will go back to my teenager time and leave a message that time travel is possible. This is the only way to prove time travel is possible or not.

I make a promise to myself that if I can time-travel, I will go back to the time when I was 12 year-old, to tell myself I have successfully time-travel back... haha...

Since I still do receive any such message...I can conclude that the time-travel technology isn`t still developed in the next ten decades...

Mannix

Until today, I generally considered time travel impossible. ...To create a second dimension, or multi-space, sufficient energy would need to be created to create that additional universe. ...Certainly, you can't get something from nothing, and it would probably fry the crap out of the timeline just to be created (re-created?)

...However, I bet it would be possible with God. ...Many people believe God exists outside of time. ...That said, potentially, he could possibly manipulate the timestream to no end. ...But I think it conflicts with the multi-verse concept through to its root.

xbcd

Heres something i just thought of, what if the universe's phase isn't a constant? IE you move yourself to a time other then your own and you get stuck out of sync with everyone else? you can go back and see them but not really interact physically. You would be like a ghost. You could walk through walls and space would lose meaning, because for you time has no longer has meaning. If you were to go back to your origin (the time you left to visit past/future) you would be back in phase with the world and could interact as normal, you would have no way to prove a trip ever occurred.

The-Nisk

To go back in time you have to travel faster than light. and that's imposible(although i am still sceptic after the evidence was showeled into my face). so unless we can use wormholes to travel through time, time travel will remain possible, but impossible to achieve in our physical state.

Indi

Gagnar The Unruly

There was an episode of the Next Generation I remember as a kid where they find some race of aliens that is living out of time phase and just pass through everything and then they time phase to rescue the aliens. Of course, the aliens are out of time phase with people, but not the cave they live in, for some reason. Maybe it has something to do with tachyon signatures and flux capacitors.

teatrodenieve

there are things that we cannot understand; and that we cannot reach. Time is beyond human being; it is a little arrogant trying to alter it

teatrodenieve

(yes I know that, sometimes we have had the same thought and science has outreached our dreams... but, this time, I really think time is beyond our scientific power)

Gagnar The Unruly

Hey, I'm time traveling right now!

DoctorBeaver

Someone mentioned earlier that maybe time machines can't go back in time further than the point of their creation. I can't see the logic in that. The components and raw materials that comprise the time machine were around before the machine itself was created. Why should there be anything special about the point in time when they were all put together?

More feasible, I believe, is that the machine could not go back further than the point in time when it was switched on. So each time it was switched on, that point in time would have moved forward. Personally, I don't think either restriction would actually apply as I do not believe backwards time travel will ever be possible.

My belief is that there is an "arrow of time", meaning that time is a 1-way street. I know the maths do not differentiate between travelling forwards or backwards in time, and that there is nothing mathematical that precludes the possibility of backward time travel; but just because our present knowledge sees no obstacle to it, doesn't mean it can happen. More logical, I believe, is that our maths is lacking. Entropy seems to confirm this viewpoint.

Tumbleweed

I think that assuming a simple choice one person makes can or could create an alternate universe is nothing more than vanity.

k_s_baskar

I think it is possible and the Time Travel Machine already invented!????!. But it won't take to the year 2200 or 1900. But you can go back or travel to feature upto 12hrs.
Smile

DoctorBeaver

GSIS

DoctorBeaver

xbcd

Tumbleweed

DoctorBeaver

It's not the same at all.

Putting all the pieces together does not mean it is operational. A lightbulb can be created but it won't illuminate anything until it's switched on.

heartbeat

you know? I think it is possible without even moving from your place.

This is my theory: If you think of time as a 3D spiral moving up or down, it doesn't matter, and if you cross section it vertically you will have vertical time wich will contain all points of all arms of the spiral instead of following the path of it. As time is an ilusion that we create and thinking that in universe everything is happening at the same time you could be here in this space time or in all other parts of the same spiral and consequently in any space-time you want.

I think that is why people guesses future or see the past.

It already happenned to me. Once I dreamt with my pregnancy and my friend pregnancy. We were both pregnant in the same space time in my dream. But in real life, my friend got pregnant that day and I only got pregnant one year latter. The dates were so exactly that I could not find another explanation to this event. Only that in my dreams, where normally people is more free of conventions and human creations I had the abillity to cross section the spiral and be in two arms of the same spiral at the same time.

Time is just another coordinate, like spacial vectors x,y,z. It is here that Einstein was a genius. Everything is relative to something else. You only think you're moving if you're moving and seeing something that is steady. if you move at the same velocity of something else that you're looking at you will think you are steady because you won't have a referential. In time I think it works the same way. You only perception it if you're looking from the outside. But if you could reach the same velocity of time (will it be speed light?) as it could be possible in your dreams or in your mind, time as we know will disappear.

xbcd

heartbeat posses an interesting point. Since when you accelerate towards the speed of light you slow down and time around you speeds up. But if you were to move at the speed of light time around you would be moving infinitely faster then, so you would either a) jump forward into the future or b) jump from a one part of time to another, (this of course assumes that when you reach the speed of light time around you comes to a standstill)

Tumbleweed

theem

there is no way its possible ...
no need to fry my brain out for this topic ..

but i actually enjoyed reading it Smile

Nubilosus

OH! Timetraveling Very Happy

I'm new to this community but I once wrote a 5-page paper about time traveling for college.

The main problem is Lavoisiers Law: Mass can not disappear or appear. Yes, you can turn it into energy and say it's gone, but energy can be turned back into mass again so it isn't really gone.

However, if you go timetravelling you rmeove your mass from this place to another place back/forward in time. So there is mass disappearing here and appearing somewhere else in time. That's a double violation of the Law.

You see, quantummechanics state that every atom is unique, so if you go back in time 'your' atoms alrady exists in that world, The carbon atoms in your body are also there, in the form of earth, or vegetables, or animals. That's not possible.

So timetraveling is only possible with things that do not consist of mass or energy (cause those are actually the same). And there's no such thing. Even a spirit or soul (if it exists) would be energy/mass.

rshanthakumar

When you are travelling faster than light or at the light speed, you 'perceive' as if time is stagnating or that you are moving back on time. But it is not that you are moving from one location to another. You continue to exist in the same time map.

Assume you are moving away from Earth at the speed of light and moving towards Andromeda. For you, time on earth would have come to a standstill. And as andromeda approaches you, you will be doing so with positive time shift. You will be moving fast forward on time. Let us say you instead of a path away from the earth you are moving on a circular path that takes eight years to turn around and come back. For four years you are moving away from the earth and the other four years you are moving towards earth. The net effect when you land will be 8 years. But almost all of these ten years would have expired when you moved towards the earth and when you were moving away from it, time would have dilated.

Right, now how does this fit into the multiple realities of the universes? Multiple realities says every person has his own universe. So the question of time become murkier with multiple universes.