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So, say you developed a method of going back in the past and met yourself.

What would happen if you killed your past self?

Also, here's a surefire (or is it) way of telling whether we'll have time travel in the future: If we had time travel in the future, surely there would be travellers from the future among us today?

And, the question that was posed in another thread: What exactly is time anyway?

I don't want to flood you all with ideas - I may come in with my opinion if the thread gets any replies.

[center]You know... There is just too many questions to ask about this. And I've thought of many before.

I've come to this conclusion though.

Time travel is impossible. To move matter back into a time that has already happened? Impossible. But if I'm wrong, nobody will know about it or how to do it for a long long time. Probably like 200 years or something like that.[/center]

I honestly dont think that you would give a shit, since our societyis screwed up enough anyway..



Wow, i gotta go take out my conatacts they burn so badly ><

Time is a measure invented by humanity. Or a law created by God.
Another question: What is gravity? Give me a satisfying answer on this and i shall send you all my money. My weed too, if you insist.

~Nazgath

[center]Well... Gravity is... What keeps us all from falling off the planet, I don't know. Screw all of this. I don't want to know how things work or what they are. I just want them to work for me right. And I don't want YOUR weed.[/center]

Hey! You are insulting my weed! When you arrive in Hell, I shall give you an extra sign-in wait for being so disrespectful by scripting a program especially for you causing you password to be only sent half a century later to your account, and you will only get ashes of weed smoked there!

-Never mess with the Devil.

(Gotta dig talking of yourself by the third person).

It's technically possible to go back in time, what with quantum wormhole technology and all that.

But - say that the Universe is a computer program (don't make any Matrix comments ), and we somehow bent one of its rules (time), went back and killed our past selves. If we killed ourselves then we could never have existed in the future and therefore couldn't have come back in time in the first place to commit what is basically suicide.

When faced with a paradox like this, would the Universe simply 'crash?' I can imagine some kind of admin trying to get the server back online.

There is another theory that believes that a Universe is created for every possibility, so there would be no paradoxes. You would still cause immense grief for your other-Universe family and friends if you killed your other-Universe self, though.

Time travel was theorized impossible by Albert Einstein.

As he said the closer you get to the speed of light, the slower time will pass relative to your position. Once you reach the speed of light your relative time will stop therefore time has stopped for you.

Based on this thoery lofic will tell us that if I go passed the speed of light time will go in reverse but the speed of light is the universal speed limit therefore it's imposible to go any faster therefore you can't go back in time.

Logically thinking going forward in time will be going faster than the negative speed of light. It is imposible to have a negative speed, the only thing that will change is the angle of the vectorial speed which proved it is imposible to go forward in time.

Rationally thinking, you can also say time travel is imposible because the future hasn't reached us yet and since the future is infinite then it has to be discovered somtime if it was posible.

Time travel into the future is a definite theoretical possibility, Beer.

Time dilatation occurs as you travel faster and faster, right? So if you were going at 99% the speed of light, time dilatation would be huge and you would be, effectively, going forwards in time.

It is impossible to accelerate to the speed of light though, you're right, because that would require infinite energy to achieve (anything has infinite mass at light-speed). There appear to be some exceptions to this rule, such as photons...

Infinite gravity causes time to stop as well, if you're interested in knowing that.

Back to going into the past - it would be possible to utilise wormholes that take advantage of the cuved nature of space-time and 'burrow' through it into the past. It's practically impossible though.

Time travel is a funny thing because what if there are time travelers among us today? What if we do develop a way to move back. If scientists unlock the secret to the fourth demention, then who knows what could happen. Also, the future is not set. If you mess something up in the past, the future is going to change; in one way or another. Crazy huh?

Funny thing is how you say the future is not set but that there may be people from the future among us. You just made a big contradiction on yourself.

Basicly if they could come from the future to our time what would stop us from acquireing that technology to effectively travel through time?

[center]

QUOTE

Based on this thoery lofic will tell us that if I go passed the speed of light time will go in reverse but the speed of light is the universal speed limit therefore it's imposible to go any faster therefore you can't go back in time.

Logically thinking going forward in time will be going faster than the negative speed of light. It is imposible to have a negative speed...

But what about you, Beer? Since your so fast...

Or how about you just run backwards really fast [/center]

I will be the exception Kahoona, as you can see Bolt is amazed by this:

I think it was Stephen Hawking who originally said that. That does not rule out the possibility of time travel though. It can mean that a wormhole is required that has not been created yet or that we are at the farthest point in time right now, as two examples.

I would say that if you were able to travel into the past, you can change so many things in different ways, it should be impossible, but, the future however, wont change the past, which, could be possible, but very unlikely, because whatever you do could effect further into the future and so on and so forth.

The closest thing to time travel possible is of course SEEING the future, if anyone saw the movie "paycheck", it would help this discussion i think; because he said that seeing the future is possible, because Albert Einstein said so, well, in that movie anyways. I could be wrong, but they explain quite a bit what beer explained earlier.

If you went back to meet yourself then in the future you would meet yourself again and in that future you would meet yourself again. But then if you killed yourself you would still be alive to meet yourself and if you DID kill yourself then you didn't kill yourself and managed to meet yourself. In a different universe you would be able to meet yourself again thus killing yourself, so if you were in a different universe and you were able to kill yourself and still go back in time you would die again and go to another universe, making you go very rapidly through millions of universes at a time and then you would end up in a universe where you DIDN'T have time travel and everything was ok, see paradoxes fix themselves like that. That's why we don't have any.


A person in the future wouldn't be able to meet us in the past if we were in a universe where that can't happen, but if we thought that thought then there is a universe where it CAN happen and it is happening right now, since every possibility can be a universe maybe we are in the Wrong possibility and the right one is not this one because this one is wrong and there is NO time travel but time travel is normal in another universe and there is no such thing as a paradox in another universe, thus making it NOT a universe so a different universe can't happen, so a different universe would be our universe and our universe is the Wrong universe.

All in all chances of time travel might be possible but not if someone stops it from happening. Like if someones smart enough to find a way to go back in time he would probably stop anyone else who tried. The government would put a law on creation or something about time travel. PS im always thinking that someones gonna come back in time and kill me so i have to make sure my doors are locked but then i think wait what if they go back before i lock my doors and think of this! no! so now i carry those glasses that have mirrors on them to look behind me . Oh but the chances of reaching any specific destination in ease is completely impractical so maybe my house in a couple of years is going to be a place where we dump our pooo!

[center]Think about this... If you traveled into the future to meet yourself, let's say on Jan 1st, 2007. Wouldn't you have already done that? So when 2007 comes around for you, you should expect yourself to meet yourself then.

Or think about if you traveled back in time 5 minutes to before you traveled back in time. Wouldn't you have already seen yourself come back in time so you would know what is going to happen and such...[/center]

if we messed with time which we will actually never do i would go to north korea and become a peace maker.

you know....
time is change...no change = no time...right?

plus did you gusy read "light of the other days" by c. clarke?(i dunno how to spell his name...i forgot) but they can see they past..but cannot communicate with it...they can take info from the past too...but cannot send...see?

Well, I don't have any idea.
For all I know, events could be connected, but not have to have a cause. In which case, if you went back in time and killed yourself, you would just BE there. No reason; you just appeared out of nowhere.
Or perhaps your version of future still exists, in which case, no paradox: you still have a cause and origin, and you still have a no-you-future.


Surefire? Hardly so.
First of all, such people could have disguised themselves, in any of dozens of ways besides acting as though they're normal people.
Or perhaps they have time manipulation technology advanced enough to return our present into their past, so that all of us, including our memories, locations, activites, and so forth, revert to an infiniterly small amount of time before the people appeared, so that it's litterally impossible to tell that it ever happened.
And also, perhaps we'll be able to travel into the future, but can't travel into the past.

Lastly, a little off topic, I'll state what I think might happen if we could travel to the future.
You might travel into a time in which you disapeared for n oapparent reason, out of thin air, and people are like wtf?!, or perhaps they DO know what happened because they'll figure that you probably travelled, or perhaps you will travel into a blank future with absolutely nothing in it. Why? Because there has been no cause for anything. The events preceeding what you're in haven't happened yet, and thus haven't caused the future to exist yet.
Or millions of other possibilities.

wow...i actualyl got that...no reason to exist...so you dont exist....

nice

or you might end up in vacumm because earyh blew up

How the hell do you figure you would meet yourself? It's not possible. See, if you could somehow instantly warp between now and a year from today, you simply didn't exist for a year.
Likewise, if I'm in my room and warp to your room... I wouldn't exist in my room anymore or on the path to your room, just in your room.

But going back in time would probably glitch up something major. Logic would seem to suggest you would infinitely clone yourself.

I agree, how do u meet ur self is it possible? Do we have the technology? ITS IMPOSSIBLE

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