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On June 20 2008 19:29 Wonders wrote:
Pretty sure that if backward time travel was possible, then every other day some neo-human would be stepping out of a time machine in the sky with rayguns and all, declaring that they were from the future.
you need to watch the videos zlol
i'll summarize:
backwards time travel is theoretically possible by creating a time machine, but you could only travel back to the point in time when the machine was built. since we have yet to build one, nothing can travel back to us.
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i read to page 3 and i think ill get a seizure if i read any further. sry for any redundancy but PLZ let physics out of this. im fine with arguing about philosophical consequences of time travel but my blood is curdling when i read some of the so called scientific arguments. its like so many people here have read this or that illustration about some phenomenon or law, understood the part they found interesting, ripped it ouf context and smashed it in an unfitting way into this discussion.
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The physicians, most of them agree that traveling back in time is impossible. And that's easy to understand for anybody, with the paradoxes that were mentioned. Now traveling in the future is possible, in theory. But once you are there, in the future, you can't go back. That's all.
Some sort of traveling (for human) in the future could be the cryogenics, meaning you get frozen and revitalize in the future. Just like in futurama. But if you want for an object somehow to disappear and then, in the future to appear, then we need to decide what's happening with that matter, where it goes. Perhaps the fourth dimension is needed.
As about the people that say about nonexistence of the time, perhaps they should think about the notion of speed.
Also, nothing's wrong with the way to see the time as linear. There's certainly the past which we cannot change, as we can't go there. Although we could get the information about it. And there's future - the other direction. Now you can make your own way of seeing the time, like something circular, or anything else. But basic things remain the same. You can't mix the past and the future. And you can't change the past, which is just getting bigger and bigger as the *time goes on*.
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How is a thread about time travel 8 pages long lol...
I hope to sweet Jesus you people aren't serious XD We all learned time travel is impossible when we realised we live in reality, and we all learned it would have been a bad idea anyway since Doc in Back to the Future destroyed the time machine.
Edit: Now I can't get the back to the future theme out of my head..
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well before that plan actually goes to plan (harvesting natural resources) it should probably be planned now and performed in the future. Because you can't just go back to like 1900s and be like o hai allyourbasearebelongtous
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On June 20 2008 23:43 arbiter_md wrote:
The physicians, most of them agree that traveling back in time is impossible. And that's easy to understand for anybody, with the paradoxes that were mentioned. Now traveling in the future is possible, in theory. But once you are there, in the future, you can't go back. That's all.
Some sort of traveling (for human) in the future could be the cryogenics, meaning you get frozen and revitalize in the future. Just like in futurama. But if you want for an object somehow to disappear and then, in the future to appear, then we need to decide what's happening with that matter, where it goes. Perhaps the fourth dimension is needed.
As about the people that say about nonexistence of the time, perhaps they should think about the notion of speed.
Also, nothing's wrong with the way to see the time as linear. There's certainly the past which we cannot change, as we can't go there. Although we could get the information about it. And there's future - the other direction. Now you can make your own way of seeing the time, like something circular, or anything else. But basic things remain the same. You can't mix the past and the future. And you can't change the past, which is just getting bigger and bigger as the *time goes on*.
My god, there's so much wrong with this post that I don't know if I even need to point it out.
Perhaps the fourth dimension is needed for time travel? No shit, idiot; the fourth dimension is time.
You don't seem to have a solid grasp of the "notion of speed" if you're using it to prove that time exists.
Is the future getting "smaller and smaller" as *time goes on*?
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Either there is one timeline or multiple timelines.
One timeline allows us to go back and change things, multiple does not.
The "no one has come back to us from the future" argument only disproves the single timeline argument, and thus does not disprove time travel altogether.
I personally don't have an opinion on the matter, other than although it seems impossible half of the everyday technologies we use would have us burnt at the stake for witchcraft not too long ago, so who knows what the future (or the past  ) holds ?
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this thing of "time travel" bugs me :S
lets say that today i traveled to the past (take 1999 for example...) and saved the life of someone i care of....
in this "new time" the person is alive... and i (me in 1999 ) dont even know that this person would die and would continue my life until june/21/2008... and today i would have no reason to go back in time.
but if i dont travel back, the person would have died... oh fuck...
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Except you would see that it was taken the moment you set it down, if you did indeed take it in the future.
Basically it would go
1. You set bill down.
2. Your future self comes and takes it immediately
So basically there would be no bill for the later selfs to get "again", it would have been gone already.
btw, the original poster was right about backwards time travel being impossible besides for the wormhole loophole, and even that's just a side effect of general relativity. Assuming we could even build a stable wormhole (out of antimatter, which by its nature annihilates normal matter on contact), and assuming we could somehow drag one end of it to near the speed of light and bring it back safely, our current laws of physics aren't really good enough to predict what might happen.
And as for time travel into the future...well look at a clock
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EPT
