Why think of such confusing things when we don't have time machines yet?
As confusing as the OP was, I got it and for some annoying reason it makes sense.
The problem with time travel is that you have to go faster than light, and when you reach the speed of light, time stops, making it really fucking hard to navigate.
[editline]4th December 2010[/editline]
Also: if you created a time machine, we'd only be able to go back as far as the moment the time machine was created.
^ you wouldn't if the medium you were moving in (i.e. space-time itself) was also moving, making you move faster than SOL from an external perspective. This could possibly be done using a rotating super-massive black hole and 'frame dragging'. But yeah, your second (edit) point is entirely valid. Even with a black hole you could only keep the frame dragging technique going up until the black holes creation.
I vote for the second answer in the OP, and since QM has so far shown to be entirely time symmetrical, I'd say multiple parallel history's and futures are needed, and are pretty much interchangeable (the only thing making them differ is our perspective of them in time). This obviously raises the possibility of parallel presents too. But who knows, as of yet this is just unfalsifiable speculation. But this seems the most logical explanation as long as we can't find anything to prohibit time travel.
am i 1 of f4c3punches finest
Time isn't real, especially not time travel. Think about it. Look around you. All the objects in the world are where they are for a reason. Do you think you're going to invent a machine that will magically rearrange everything to the way it used to be? I don't know if this is making sense to you but to me, there is only the present. Past and future are imaginary.
Energy is never lost or created, it stays there.
Nothing phases out, man. The tap water you drink is not new, it's been there since the dinosaurs, it's just filtered. If you took a shit then, it'll go into the ground and fertilise some soil. Arn't you just saying that you'll do something, then *poof* it's gone? No, man, it stays.
I wonder how the universe would be "destroyed" if a paradox was unleashed.
Would everything just go POOF and cease to exist?
Would everything just randomly combust and the universe implode on itself?
Paradoxes are so strange. Strange, isn't it?
Yes.
If he went back in time and breathed out. That has already happened. If you go back in time the future can't be changed or else you would have never gone back in time in the first place thus ceasing to exist and changing things. If you go back in time and try and kill your past self, something is going to stop you because you would have already been dead. Same with the whole breathing thing. If you breath, that's already happened in the past. There is no new particles. They were already there.
If you go back in time, the future you know ceases to exist. This is because you have existed in the past, whereas you didn't exist before. This changes a series of events that will ultimately change, given enough time, the future.
Another thing, matter cannot be created or destroyed. Because he went to the past and took something with him, that thing does not exist in the future anymore, because he took it to the past.
[editline]5th December 2010[/editline]
sorry if I got anything wrong, I'm a bit of a dunce.
[QUOTE=JohnnyMo1;26465070]You literally have no idea what you are talking about. Stop complicating the argument with your nonsensical ideas about the geometry of timelines. When you go back in time and kill yourself in the past, you set it up so that you can never have traveled back in time because you die before you do so.
[/QUOTE]
But then how did you get killed?
Simple. Nothing is real.
[QUOTE=ZombieWaffle;26494707]But then how did you get killed?[/QUOTE]
Perhaps you would live seeing as you would no longer be in the same timeline simply because you are there now.
That's how I think of it anyway...
...Where's aVon when you need him.
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