Physicist Definitively Rules Time Travel Impossible

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Dragonpit

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Nov 10, 2010
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The sad thing is...like before, even if you say it's impossible, people just won't give this up.
 

Fanboy

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Oct 20, 2008
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Oh yeah? This post was made on April 6th, at 3:28 pm, but on April 7th I will go back and edit it to something completely different.

Just TRY and stop me, Igor Smolyaninov!

But wait, if I change the post I will prove him wrong and have no reason to make this post in the first place, which means I won't be able to change it in the future, which means he will be right, [small]which means I will make this post and change it in the future, which means he'll be wrong and I won't have to make this post, [small]which means I am stuck in a loop...[/small][/small]

[sub]Crap.[/sub]
 

Axolotl

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Feb 17, 2008
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We already knew traveling back in time was impossible, that's obvious. The important question that Hawking and others tried to answer is why time travel is impossible.
 

RA92

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Jan 1, 2011
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Who says time travel is impossible?

I'm travelling through time, towards the future.
 

ssManae

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Aug 13, 2009
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I say we invoke Clarke's First Law:

"When a distinguished but elderly scientist states that something is possible, he is almost certainly right; when he states that something is impossible, he is probably wrong."

Still, the alternate dimension thing reminds me of this time-travel thing I saw once a few years ago, about a guy coming back to get some UNIX systems so they could fix the problems with 'em in the future after the nuclear wars (they were supposed to drop in 2007; it was a decent read, though, back in the day). Part of his claim on it was time travel was less a straight line and more of a hyperboloid: the further you traveled, the further you [might] be from your own time line. If nothing else, it gave the writings a bit more of an "authentic" route in that if none of it came to pass, well, we were just a dimension far enough from his own.

EDIT: Also, abusing relativity to travel forward in time still holds. Too bad you can't come back using that theory...

EDIT2: Dupeo got his name. John Titor. Couldn't remember that for the life of me. Been years since I read any of it.
 

Dupeo

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Mar 10, 2009
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Uh, we DO have at least one time traveler who decided to reveal himself. John Titor. Look him up.
 

kebab4you

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Jan 3, 2010
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Soo with that logic someone from an alter universe could come to ours and kill Hitler for us? Sounds kewl.
 

ssManae

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Aug 13, 2009
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kebab4you said:
Soo with that logic someone from an alter universe could come to ours and kill Hitler for us? Sounds kewl.
Nope. He already would have been killed. Past is still set in stone for us.
 

Amizrael

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Nov 12, 2009
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Sir_Auron_the_Badass said:
Raiyan 1.0 said:
I like the idea of alternate realities. We'll fuck up their timelines, but keep our one pristine. ;)
What sort of perfect dimension are you from? Ours has never been pristine.
Think he means free from the meddling efforts of universe hopping interlopers.
 
Jun 7, 2010
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Wait...so if we can still theoretically travel to alternate dimensions...and there are infinite universes with infinite possibilities...does that mean I could go to a universe where Scarlett johanssen accepts my constant marrige proposals and we all gets six-shooters and katanas and pet dinosaurs?
 

DustyDrB

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Jan 19, 2010
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Lol. One of the tags is bummer. I love those little touches on articles.

Thanks for at least keeping the dream alive for me to kill the Hitler of Oz.
 

Gennadios

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Aug 19, 2009
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Halfway competent physicists were saying the same thing for years. The only ones saying it was theoretically possible were working with hack theories and equations to begin with.
 

Wilbot666

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Aug 21, 2009
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hurricanejbb said:
Of course time travel is impossible. Everyone knows the Langoliers eat the past.
Haha beautiful, I'd forgotten about the Langoliers. Well played!