Time travel will never be possible.

[FluffX]

If it becomes possible any time in the future, we would have known by now. I personally love it because of the effect on grammar it has had. Has. Will have.

Edit: For a weirder tone, consider this. I'm writing this now. Which by the time you read this, will have been then. If I had put something inspired here, then it would travel from the present, through the past, into the future, but stop at the present.

My head hurts.

 

[Jamous]

Time is instantaneous. Anything you try to change has already been done by you, so you're not actually changing anything. The past cannot be changed.

NON BELIEVER! :O

jkay man. i do see your point, but referring to my earlier point, you wouldn't know, as the changes may have already occured, and with you living in this timeline, you would continue believing this to be unaltered destiny.

Example: (This will make me sound super retarded i know) JFK. We all know he was assassinated. This change has occured, and we continue living our lives, with LBJ being elected, and us assuming it was "fated" and unaltered, just part of this timeline. However, this could be an altered past, where JFK was not assassinated. however, we would have no clue, as the changes have already occured in the past, altering our perception of the present.


RANT OVER.

kick the dipshit if you want to now, but i cite the 1st amendment

Hell, i'm not even American

It would instantly become part of the timeline. He would be assassinated, or he would appear to have been. Sorry for being a bit of an arse about this, but it's simple logic. Have you seen 'Blink', the Doctor Who episode. I think it might be explained/demonstrated briefly in that. Of course I could be spouting bollocks, what do I know? All I am saying, is that what I said is the most logical, and thus most probable, answer.
Giving you Who as a reference point has given me a terrible blow to self-credibility.

 

[Mighty Lighty]

I doubt the possibility of time travel

we might be able to go forward in time but not backwards as to go forward in time we need to go faster than light, so surely to go backwards it would require us to go slower than the speed of light.

(kudos to anyone who finds the one major flaw in time travel

 

[Tharwen]

Time is a human interpretation of the way things work and does not really exist. There is only the universe as it is now and how things are in each instance, which can only last for an instant and is gone by the time the next one exists. In each instance, every part of the universe has a place and status which will be the cause of its state in the next instance and is predetermined by what humans classify as 'Laws'.

The only ways time travel could ever appear to work are through

1. travelling faster than light or
2. every particle in the universe suddenly changing (through chaos theory) to the state is was at a time that humans interpret as the past.

The Science of Discworld had some interesting stuff on this. Basically the only way to travel back in time is to travel at a speed greater than the speed of light, this means using wormholes (which may or may not exist). And also you could only travel back as far as the creation of the time machine.

Which Science of Discworld???!?? I only read the first one so either I have a bad memory or it's in one of the sequels.

 

[Koeryn]

Going backwards in time would probably 'cause paradoxical situations and fail.

Going FORWARD in time, murdering, raping, pillaging, etc would be hilarious, 'cause you're not doing anything to pre-existing time lines.

Yeh, but you couldn't go back, because that would mess up the timeline that you yourself set out like 50 years in the future!

Yeah, but here's the fun part: You go back to your time, and then it doesn't matter what happens in the future. You'll live, you'll die, and then you will murder untold thousands. It'll be like coming back from the dead, only better! =D

 

[Blitzkrieg8]

i don't think it possible to go back in time however it's easy to go forward in time just travel near the speed of light.

 

[mkg]

Well, technically it IS possible (theory of relativity), we just don't have the technology to produce or contain the energies involved. Now if we can conclude that time's effect on you can be altered, who's to say that it's impossible to escape its effect althogether? Obviously, Iwould have no guess on how, but my point is that every 20 years we make what we once thought to be impossible possible. The human genome is mapped, cloning is within our grasp, we have particle colliders that can create momentary blackholes, science is really the key to every fantasy you could ever dream up.

 

[KindaAverageApatheticGamerMan]

In the topic of time travel I've always assumed that in order for one to go back one must be able to go forward, and if that were possible it would suggest that events have already happened before their time which is highly improbable. Plus if the future were already in motion then it would suggest that a time machine would be able to already exist in the future, and if that were true then there would already be people traveling to our time from the future, which hasn't happened as far as I know. Plus why would anyone with half a brain create a device that could single handedly destroy our entire society and technological advancements? Traveling back in time seems like nothing more than a fantasy, it would be a cool experience for an individual, but a disastrous mistake for society as a whole.

 

[FoodMonger]

if somebody does/did go back in time, then could it be possible that their present is a result of their traveling back in time?
For instance, a guy goes back in time to prevent a disaster from occuring. However, when he tries to prevent the disaster from occuring, he actually sets up the events leading to the disaster.
So why bother going back in time? You will just create the events that happened in your universe. Just watch the Twilight Zone episode.

 

[buddee1]

Oh it will be possible at one point, and than someone will use it to fuck up the space-time continuim.

i think that already happened... the ice-capades(shutter)

 

[hiks89]

Time is a invention of man, why change it?

actually time is the fifth dimension

 

[VGZombie]

If time travel was possible in the future, then someone would have came from the future already and give us the technology in order to build it and advance civilization. Unless of course it's a go-to-the-future-and-back time machine. In that case, I don't know.

If this was said already, then I'm sorry.

 

[spoonish]

i think the bottom line is, if time travel is indeed possible, then it would have already happened (in the future), and they would have already come back in time... and that hasn't happened yet... so i kinda doubt itd work...

its theoretically possible to LOOK into the past i think... if there is a mirror far enough away in space, the time taken for the light to hit the mirror and bounce back would mean that we are seeing something in the past...

 

[Harlemura]

Time is a invention of man, why change it?

actually time is the fifth dimension

I thought it was the fourth?

Surely it's possible it's already been built, used and destroyed and we didn't know about it. There'd only be the inventor and possibly anyone else who was involved with it who knows of it's existance, and the government may have already killed them.
I just want teleportation anyway. Walking's for the primitive.

 

[hiks89]

my theory is that you cannot change the past. i mean if you created a fully working time machine all the problems that you wish to solve will intantly be fixed and the time machine will disapear without even turning it on becaus if solve all the problems then there will be no need for a time machine but then u will never make the time machineso the problems wll still exist. why not just create a devise that sees into the future it will be alot more usefull

(sorry about my typing)

 

[hiks89]

Time is a invention of man, why change it?

actually time is the fifth dimension

I thought it was the fourth?

Surely it's possible it's already been built, used and destroyed and we didn't know about it. There'd only be the inventor and possibly anyone else who was involved with it who knows of it's existance, and the government may have already killed them.
I just want teleportation anyway. Walking's for the primitive.

actually the forth dimension is very complicated but i forgot what it was look it up on youtube

 

[hiks89]

the truth is humanity will never invent a time machine in there existence otherwise they would have already come back and tell us stuff about the future and they haven't so the 5 billion years leading up to the sun going supernova and swallowing Mercury Venus and earth before finally exploding humanity will not master the fifth dimension. but humanity may finally collonise planets in other star systems and survive for millenia after >_<

 

[philosophicalbastard]

Because if it WERE, the public would eventually get their hands on it, which means millions of people would have the ability to change history to their will. Now, eventually, some idiot/crazy person/terrorist is going to go back in time to where the first humans were, and kill them, or something along those lines. That would cause a major paradox, seeing as the killer's ancestry line would never exist. So as long as the universe as we know it isn't destroyed, we can be certain that time travel will never be possible, at least for humans.

This isn't the only example to prove my point, there are an infinite amount of possible paradoxes, thanks to the butterfly effect.

Your thoughts on this matter?

My theory is that a paradox of that magnitude would destroy the universe, but there are still many more universes so no need to worry.

 

[hiks89]

I doubt the possibility of time travel

we might be able to go forward in time but not backwards as to go forward in time we need to go faster than light, so surely to go backwards it would require us to go slower than the speed of light.

(kudos to anyone who finds the one major flaw in time travel

we are arleady going slower than light think about what you type

 

[Mjolnir07]

So we all agree that the only way to travel through time is to match exceed or almost match the speed of light, seriously, we all know that no matter how well we understand physics or advance our principles of science and technology that this will never be achieved. If it is, we sure as hell won't be able to return from the speed of light into anything material except molten goo.