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Topic: Do you think time travel would be possible? Why?

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tripunktoj

1. Posted:

(Excluding the normal flow of time to the future)

... what if by traveling to the past this becomes the new present, erasing everything on the time you came from but you?
(since you traveled to this new present)
... what if you succesfully "Rewind" time, but only time, and none of the events and effects that took place in that time period
... and parallel universes.

Personally I cant decide bettween those more complicated theories, but I am SURE one is the real deal!

Edited on by tripunktoj

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OldBoy

2. Posted:

Possible - Yes, Likely - No

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Edwin

3. Posted:

Time travel to the past is impossible. The past does not exist.

Time travel to the "future" is possible if you are traveling at fast enough speeds (like near the speed of light in a spaceship). Time will slow down for you, so when you get out of your spaceship, time for everyone else would have gone by faster and they will have aged more than you have.

Edwin

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TwilightV

4. Posted:

If the Theory Of Relativity is true, it's possible, but if a human succeeded in doing it, they would be crushed by the increase of mass.

TwilightV

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Omega

5. Posted:

I don't think that it is possible. If time travel is possible, why do we have no time travelers from the future here today?

Ωɱɛɡɑ

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OldBoy

6. Posted:

Omega wrote:

I don't think that it is possible. If time travel is possible, why do we have no time travelers from the future here today?

Would you believe someone who told you they were from the future? Also the moment we are living in is a tiny portion of infinite time and space so the chances of a time traveller arriving at this point in time, in this galaxy are relativly low.
Time travel is possible in theory but the speeds req'd are gonna take a long time to acheive.When the production of anti-matter is perfected then it may be possible.Don't think it will be in our lifetime though. :(

Edited on by OldBoy

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tripunktoj

7. Posted:

@Omega: Thats a common argument. and as such has been given many answers.

1. We have no evidence of time travelers as such, but that doesnt mean they dont exist (UFOs maybe, maybe we just cant see them or we havent the luck to see them)
2. Another factor is that for all the time travel devices considered under current physics (such as those that operate using wormholes), it is impossible to travel back to before the time machine was actually made.
3. It is hypothetically possible that future humans have traveled back in time, but have traveled back to the meeting time and place in a parallel universe.

... among many others

Edited on by tripunktoj

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Omega

8. Posted:

@Alejandro: I see. You're an expert in such things. Thanks for enlighten me.

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malpon

9. Posted:

Sorry time travel backwords is impossable due to the "butterfly" effect theory, in the sence that if you go back and do something that woud change the future to prevent you from going back the universe woud collapse :) unles you mean sending your conseness back but not your phsical being.

Edited on by malpon

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potomas

10. Posted:

read how to build a time machine by paul davies. it's easy to read and great if you are interested in this sort of thing

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tripunktoj

11. Posted:

@Omega: Just an amateur if I were an expert I wouldnt be asking about this.

@Malnin, Edwin: There is also a theory about retro causality, and has been proven true at atomic levels, besides many other more complicated but less proven theories... what if by traveling to the bast this becomes the new present, erasing everything on the time you came from but you? (since you traveled to this new present)... what if you succesfully "Rewind" time, but only time, and none of the events and effects that took place in that time period... and again parallel universes.

Personally I cant decide bettween those more complicated theories, but I am SURE one is the real deal!

Edited on by tripunktoj

...

3DS Friend Code: 2105-8667-6861 | Nintendo Network ID: tripunktoj | Twitter: tripunktoj

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Nathan

12. Posted:

The Relativity theory is nonsense. Time travel, as in Back to the Future with a Delorean type stuff, a resounding "no".
We are travelling through time at this very moment though (as you stated in your OP), but time is only measured by action.

Edited on by Nathan

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RJay

13. Posted:

There is no real time. We just live and things happen. Time is just something humans made up to be more organized

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tripunktoj

14. Posted:

^ Well, I used to have also that as another theory, but many laws and theories would be impossible without it, (enthropy)

Edited on by tripunktoj

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Roopa132

15. Posted:

Well I think time travel in the future might be possible... but I don't think traveling back in time is possible. So if you travel to the future you won't be able to go back.

I mean it's not like there's a "timeline" in the universe were everything that happened will be recorded so I don't think you can go back in time. But since the future will happen definately I think you can travel through to the future if you accomplish to make your time go slower if you know what I mean. Time is relative according to the relativity theory so I think it's possible to make the time go by slower for someone. So he kind of travels to the future.

Probably getting a Vita with LBP soon...

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Machu

16. Posted:

Time travel is possible yes, and will be in some form or another in our future, I hope we are far more evolved by then, otherwise we will abuse it before really understanding it like we do everything else. This will turn the earth into a bizarre paradoxical soup which will then tear humanity, and perhaps even space/time apart..

As for parallel universes, I think we are surrounded by them to be honest. For every every action that occurs, a line continues where it doesn't, or it plays out differently. There are timelines in which I am dead, and time lines in which people who have died are alive, and a timeline where I didn't type this, and another one where I didn't fix my spelling. There are more layers to this universe than most humans could ever conceive.

When I transcend, I'll make sure to remember you all, as I surf upon strings between brane's.

Rawr!

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Reala

17. Posted:

If it was possible why didn't they go back and correct the mistakes made by Sega, we would probably be on to Shenmue 5 by now if they did.

there's nothing that's certain... of that you can be certain

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Djungelurban

18. Posted:

No, there's no time so there's nothing to travel back to. Or rather, most people misunderstand what time is. It's not a "thing" per se. It's a measurement, like meters, but in this case it determines how fast something can change. What that is exactly I don't know, if string theory is real I'd speculate it's connected to how quickly a string can change but I don't know.

And also, there are logistical problems with time travel too. We assume that travelling through time would plop us out of this existence and into another at the exact same place but problem is, the planets rotate around the sun and the sun rotates around the galaxy core and the galaxy itself moves aswell as the universe itself expands. If you only were to travel in time I don't know where you'd end up it would most certainly not be here on Earth since the Earth is tiny and the universe vast. So you'd have to travel in space aswell but then the question is, compared to what, since you can't really coordinate the universe. Also, travelling in space has all the normal problem associated with it like being limited to the speed of light and so forth. So ultimately, travelling in time will lead to death. Yup, sucks to be you.

Parallel universes though, now I'm all over that since I'm kinda liking string theory. And if you could find a way to punch into one of those and do it with precision (you don't wanna go to a universe where the strong force doesn't exist and all of your electrons and protons and such just scatter immediately), that would be like time travelling. Cause since string theory stipulates that there are an unlimited number of universes and that universeforming process has been going on for an unlimited amount of time, then there are an unlimited number of universes out there for every possible outcome and situation, both in this kind of universe aswell as every other possible universe. For example, in an unlimited number of universes, Jessica Alba is pleasuring "me" sexually "right now" (although the concept of "now" is rather flawed in this situation). In fact, there are an unlimited number of universes out there that turns out exactly like this one in every single detail on, even the atomic level. If we then add things like probability to the mix we get things like some of those unlimited number of universes are more prevalent then other versions of universes that are unlimited in number and that's when we get situations where unlimited > unlimited and it's around that time the whole concept starts to break everyone's brain. But yeah, assuming string theory is true and if you could travel to those parallel universes then yeah, that kinda would be like time travel cause you'd be able to travel to a universe that's exactly like how our universe was at the time that you wanted to visit it.

Edited on by Djungelurban

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Wiiperson11

19. Posted:

If time travel was possible then people from the future would use it and they would visit us I think so sadly, it's impossible IMO.

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Roopa132

20. Posted:

Wiiperson11 wrote:

If time travel was possible then people from the future would use it and they would visit us I think so sadly, it's impossible IMO.

And what do you think about my theory that you can just travel to the future but not the past?

Probably getting a Vita with LBP soon...