Time travel

[MasterChowmein]

I want to know your take on the subject, your ideas on if would work or not and why.

I personally don't think it would work because if we ever develop that technology why hasn't someone come back in time to warn us about something? Or maybe we have the tech we just are smart enough not to use it. But then again we would have to test it, and if one thing, even the SMALLEST little thing changes in the past the scientist who designed the time machine wouldn't have been born, therefore no machine. And even if we send someone back in time, the whole wold would change in the future, so the man sent back wouldn't be born, therefore couldn't be sent back. I THINK. I'm going insane thinking about it so please discuss it. But remember this before you tell me I'm wrong, this is my THOUGHTS on this subject, I'm not saying I'm right. Please write your opinion.

 

[ma55ter_fett]

I would like to be the first person sent back in time, with a bag full of futuristic tech I could be a very wealthy dude.

 

[Baby Tea]

I think it'd only be possible to go further into the future, not backwards.
Unless you slip on a toilet seat and invent a flux capacitor.
"If my calculations are correct, when this thing hits 88 miles per hour...you're going to see some serious shit.

 

[Julianking93]

I'm pretty sure that I heard time travel was basically impossible because it would tear the universe apart. So technically not impossible, just the universe would explode if done.

 

[Jaqen Hghar]

If it is possible there must be a good reason why we don't already have it. 'cause someone would go back to our time and teach us how to build it.
Two ways to explain that which makes sense:
1. You make a different timeline by doing so, and we aren't on any of the timelines where this has happened.
2. The discovery of time travel is one of the few fixed events. Watch Doctor Who to see what I mean.

I don't think time travel is possible at all. Sadly. And this is one of the subjects that really messes with your mind if you delve deeper.

The movie Primer has some cool ideas about this by the way. Awesome movie. Not sure how many have seen it.

 

[xDarc]

I dont know if you guys have ever seen a YTMND. It was pretty cool back in 04-05. I do drop by there from time to time though and last time I saw this bit on time travel:

http://mlkanye.ytmnd.com/

 

[Raven's Nest]

If you all want a time machine, I know how to bulid one but I shall require some donations first... PM me to set up a direct debit... It's okay I'm not Nigerian I swear...

 

[APPCRASH]

I'm pretty sure that I heard time travel was basically impossible because it would tear the universe apart. So technically not impossible, just the universe would explode if done.

I believe it was Einstein who said if matter accelerates past the speed of light it would tear the universe asunder.

 

[TheDoctor455]

If it is possible, I imagine that the main reason we haven't worked out how to do it yet is that we're not really sure as to how it actually works. Without that understanding, we have no hope of working out how to build a working time machine.

 

[Inconnu24]

Are you sure you're not a time traveler from the past? I think I've seen this thread before.

On a serious note though... Time is not real beyond our perception of continuous events. Meaning, the past isn't real outside our collective memories and there would be no way to reverse all matter, energy, and information to a state of 'the past' since there is no one collective version of 'the past'. And the future, well, we travel into it one second at a time as it becomes the present.

Of course, there are those scientific hypotheses and experiments about gravity affecting our perception of time, but I'm no scientist and I'll leave explaining that to someone who is.

 

[Quoth]

Any change you made in the past could have small to a catastrophic change on the future leading to a future so different to the one you left from was no longer there for you to get back to.

The new future would become the reality of the traveller. A new strand (or to quote Terry Pratchett, trouser leg) of time.

Of course it's hypothetical but its possible to believe that multiple strands of time already exist and that every action and reaction of every thing that ever existed has got its own thread in time.

There's also the alternate theory that infact all of time is pre-ordained (fate) and that no matter what you do you cannot alter that which will be. Or to extend on the Final Destination concept, that you can change what was meant to be but "forces" will struggle to correct the pre-ordained path.

Philosophy is pretty interesting.

 

[RyQ_TMC]

I've read somewhere about a hypothetical experiment wherein you could send a neutrino at a specific trajectory through the Earth and it would arrive at its destination before it was released in the first place. I don't remember any details, though. The article mentioned that there are only one or two obstacles to overcome before such an experiment would be possible... Well, unfortunately, these obstacles might be simply impossible to overcome.

I think travelling through time COULD be physically possible, we'll just never reach the level of knowledge/technology to actually make it work. Bottom line, even if a time machine was possible to build, it would probably require the amount of resources that we couldn't muster.

 

[Julianking93]

I'm pretty sure that I heard time travel was basically impossible because it would tear the universe apart. So technically not impossible, just the universe would explode if done.

I believe it was Einstein who said if matter accelerates past the speed of light it would tear the universe asunder.

I didn't know that was Einstein. I guess I was reading a scientist quoting or agreeing with Einstein's theory.

 

[gamefreakbsp]

It could easily be tested without causing people in the target time period to notice. There are so many areas in the world where it could be done and nobody would be around to see it happen. Then whoever was sent back in time to test it out, goes to the nearest populaiton center and grabs a newspaper. Voila.

 

[MCDeltaT]

Perhaps it isn't possible to send matter back but only mind. That way you have a constant i.e. your body to keep you attached to the timeline. Or maybe i don't really believe in time travel whatever.

 

[Zacharine]

In theory time travel is perfectly feasible. On quantum level it is quite possible for a phenomenom to be temporally unrestricted, as in the effect being it's own cause.

If space-time is a closed loop or contains a closed loop, time-travel is possible by simply travelling forward in space and time, until you reach the point where the loop 'joins' with the rest of space-time, whereupon from an outsider perspective you have travelled into the past while still travelling only forward from your own perspective.

But here's the thing: I don't think it possible for macro-level objects to travel backwards in time in any controlled fashion at the least. On quantum level everything is propabilities anyway and it is quite natural for a partive/wave to be in several different positions at once while being nowhere at all and simultaneously only at just a single position. But for a macro-level object the propabilities for all individual particles would have to achieve that state of superposition simultaneously and I think that even with the help of future technology the chances of that happening are so ludicriously small as to be practically equal to zero. Now travelling back through time via natural space-time loops in practical timeframes might be possible with a fast enough ship, but those kinds of loops might not even exist and even if they do, they likely would only lead to a fixed set of coordinates in space-time. As in, travel back trough time, but only to for example the Vega star system 10 Billion years after Big Bang. Want to travel somewhen/somewhere else? Find another loop.

So, based on that I think there is no practical way of time-travelling to past. Time travel to the future is easy, just take a spaceship, speed yourself up to near lightspeed and go take a trip around a few stars before coming back. You have aged a few years while everyone else a few dozen or even more.

 

[Punisher A.J.]

I would time travel back in time to the american revolution and sign the declaration of independence slightly bigger than John Hancock's. Take that John Hancock! Also because I could use an m16 during the battles while they had shitty little muckets.

 

[Ocelot GT]

I would like to be the first person sent back in time, with a bag full of futuristic tech I could be a very wealthy dude.

Or a very dead dude depending on the era.


HE'S A WITCH!!!!

 

[rokkolpo]

people would never screw around with that kind of equipment.

it would be destroyed after it's test drive, or not made at all.

 

[KiLl_RoY]

You can`t say anthing about timetraveling or what you say are just theories.