somewhere in a parallel universe bush might be smart!

itsmeeeeeee · 12-31-2007, 05:17 AM

Stranger that fiction: parallel universes beguile science

by Annie Hautefeuille Sun Dec 30, 5:58 PM ET

PARIS (AFP) - Is the universe -- correction: "our" universe -- no more than a speck of cosmic dust amid an infinite number of parallel worlds?
ADVERTISEMENT

A staple of mind-bending science fiction, the possibility of multiple universes has long intrigued hard-nosed physicists, mathematicians and cosmologists too.

We may not be able -- as least not yet -- to prove they exist, many serious scientists say, but there are plenty of reasons to think that parallel dimensions are more than figments of eggheaded imagination.

The specter of shadow worlds has been thrown into relief by the December release of "The Golden Compass," a Hollywood blockbuster adapted from the first volume of Philip Pullman's classic sci-fi trilogy, "His Dark Materials".

In the film, an orphaned girl living in an alternate universe goes on a quest, accompanied by an animal manifestation of her soul, to rescue kidnapped children and discover the secret of a contaminating dust said to be leaking from a parallel realm.

Talking bears and magic dust aside, the basic premise of Pullman's fantasy is not beyond the scientific pale.

"The idea of multiple universes is more than a fantastic invention -- it appears naturally within several scientific theories, and deserves to be taken seriously," said Aurelien Barrau, a French particle physicist at the European Organization for Nuclear Research (CERN), hardly a hotbed of flaky science.

"The multiverse is no longer a model, it is a consequence of our models," explained Barrau, who recently published an essay for CERN defending the concept.

There are several competing and overlapping theories about parallel universes, but the most basic is based on the simple, if mind-boggling, idea that if the universe is infinite then logically everything that could possible occur has happened or will happen.

Try this on for size: a copy of you living on a planet and in a solar system like ours is reading these words just as you are. Your lives have been carbon copies up to now, but maybe he or she will keep reading even if you don't, says Max Tegmark, a cosmologist at MIT in Boston, Massachusetts.

The existence of such a doppleganger "does not even assume speculative modern physics, merely that space is infinite and rather uniformly filled with matter as indicated by recent astronomical observations," Tegmark concluded in a study of parallel universes published by Cambridge University.

"Your alter ego is simply a prediction of the so-called concordance model of cosmology," he said.

Another type of multiverse arises with the theory of chaotic inflation, which tells us that all these parallel worlds are expanding so rapidly -- stretching further and further in to space -- that they remain out of reach even if one could travel at the speed of light forever.

Things get even stranger when one brings the often counter-intuitive laws of quantum physics into the picture, these experts say.

In a landmark paper published in 1957 while he was still a graduate student at Princeton University, mathematician Hugh Everett showed how quantum theory predicts that a single classical reality should gradually split into separate but simultaneously existing realms.

"This is simply a way of trusting strictly the fundamental equations of quantum mechanics," says Barrau. "The worlds are not spatially separated, but exist as kinds of 'parallel' universes."

The borderline between physics and metaphysics is not defined by whether an entity can be observed, but whether it is testable, pointed out Tegmark.

There are many phenomena -- black holes, curved space, the slowing of time at high speeds, even a round and rotating Earth -- that were once rejected as scientific heresy before being proven through experimentation, even if some remain beyond the grasp of observation, he said.

He concluded that it was becoming increasingly clear that multiverse models grounded in modern physics could be empirically testable, predictive and disprovable.

http://news.yahoo.com/s/afp/20071230...fmoKFHNT6s0NUE

and in some parallel universe, i'm a republican, and bush is smart.
but not in this one!!!!!

The_Heretic · 12-31-2007, 09:08 AM

I think their view of parallel universes is overly simplistic. The idea there's a copy of us assumes a narrower range of universal constants and probabilities than actually exist. Imagine where biological evolution could've gone but didn't. One more or less major asteroidal collision or one at a different time or of a different size or impact location and the entire history of live on Earth is different. And that's ignoring countless other factors affecting evolution.

Plus, there might well be a parallel universe where the Earth didn't form or a planet did the composition and size are different.

And then you have the unversal constant values for various forces. Any change down to the twenth decimal place and it all goes off some where else entirely.

Even with an infinite number of parallel universes I'm convinced that each of us is wholly unique.

Sean · 12-31-2007, 09:23 AM

I think in a parallel universe Dumbya is someone's pet turtle.

The_Heretic · 12-31-2007, 09:26 AM

Quote:

Originally Posted by Sean

I think in a parallel universe Dumbya is someone's pet turtle.

You just made me think of the Dr. Suess story about Urdle the Turtle, who wanted to rule as much of the world as he could see, so other turtles had to form a tower for him to sit atop of.

Sean · 12-31-2007, 09:28 AM

Quote:

Originally Posted by The_Heretic

You just made me think of the Dr. Suess story about Yertle (edited for you) the Turtle, who wanted to rule as much of the world as he could see, so other turtles had to form a tower for him to sit atop of.

Then there are two of us.

itsmeeeeeee · 12-31-2007, 12:51 PM

Quote:

Originally Posted by The_Heretic

I think their view of parallel universes is overly simplistic. The idea there's a copy of us assumes a narrower range of universal constants and probabilities than actually exist. Imagine where biological evolution could've gone but didn't. One more or less major asteroidal collision or one at a different time or of a different size or impact location and the entire history of live on Earth is different. And that's ignoring countless other factors affecting evolution.

Plus, there might well be a parallel universe where the Earth didn't form or a planet did the composition and size are different.

And then you have the unversal constant values for various forces. Any change down to the twenth decimal place and it all goes off some where else entirely.

Even with an infinite number of parallel universes I'm convinced that each of us is wholly unique.

yes. i agree about our uniqueness.

every frickin decision we ever MAKE produces another universe?
wow, there's a lot of me's and you's out there!
i love it.
but it's pretty mind-boggling when you think of it.
the kind of thing you just have to accept,
and then move on without getting your mind completely around! ha!

The_Heretic · 12-31-2007, 04:01 PM

Quote:

Originally Posted by itsmeeeeeee

yes. i agree about our uniqueness.

every frickin decision we ever MAKE produces another universe?
wow, there's a lot of me's and you's out there!
i love it.
but it's pretty mind-boggling when you think of it.
the kind of thing you just have to accept,
and then move on without getting your mind completely around! ha!

The idea that we split into new universe because of decision just because a photon can literally have it both ways just seemed weak to me.

jowey · 12-31-2007, 04:28 PM

Quote:

Originally Posted by The_Heretic

You just made me think of the Dr. Suess story about Urdle the Turtle, who wanted to rule as much of the world as he could see, so other turtles had to form a tower for him to sit atop of.

lets lose Urdle this year.......

itsmeeeeeee · 01-02-2008, 03:53 PM

Quote:

Originally Posted by The_Heretic

The idea that we split into new universe because of decision just because a photon can literally have it both ways just seemed weak to me.

to me, it makes perfect sense...

even though i have a great deal of trouble imagining it.

mudwhistle · 01-02-2008, 04:59 PM

Somewhere in a parallel universe Fat Albert Gore might be telling the truth!

12-31-2007, 05:17 AM	#1 (permalink)
itsmeeeeeee punk nun Join Date: Nov 2007 Location: 53 miles west of venus Posts: 3,454 My Mood: Blog Entries: 3 Thanks: 183 Thanked 627 Times in 372 Posts	somewhere in a parallel universe bush might be smart! Stranger that fiction: parallel universes beguile science by Annie Hautefeuille Sun Dec 30, 5:58 PM ET PARIS (AFP) - Is the universe -- correction: "our" universe -- no more than a speck of cosmic dust amid an infinite number of parallel worlds? ADVERTISEMENT A staple of mind-bending science fiction, the possibility of multiple universes has long intrigued hard-nosed physicists, mathematicians and cosmologists too. We may not be able -- as least not yet -- to prove they exist, many serious scientists say, but there are plenty of reasons to think that parallel dimensions are more than figments of eggheaded imagination. The specter of shadow worlds has been thrown into relief by the December release of "The Golden Compass," a Hollywood blockbuster adapted from the first volume of Philip Pullman's classic sci-fi trilogy, "His Dark Materials". In the film, an orphaned girl living in an alternate universe goes on a quest, accompanied by an animal manifestation of her soul, to rescue kidnapped children and discover the secret of a contaminating dust said to be leaking from a parallel realm. Talking bears and magic dust aside, the basic premise of Pullman's fantasy is not beyond the scientific pale. "The idea of multiple universes is more than a fantastic invention -- it appears naturally within several scientific theories, and deserves to be taken seriously," said Aurelien Barrau, a French particle physicist at the European Organization for Nuclear Research (CERN), hardly a hotbed of flaky science. "The multiverse is no longer a model, it is a consequence of our models," explained Barrau, who recently published an essay for CERN defending the concept. There are several competing and overlapping theories about parallel universes, but the most basic is based on the simple, if mind-boggling, idea that if the universe is infinite then logically everything that could possible occur has happened or will happen. Try this on for size: a copy of you living on a planet and in a solar system like ours is reading these words just as you are. Your lives have been carbon copies up to now, but maybe he or she will keep reading even if you don't, says Max Tegmark, a cosmologist at MIT in Boston, Massachusetts. The existence of such a doppleganger "does not even assume speculative modern physics, merely that space is infinite and rather uniformly filled with matter as indicated by recent astronomical observations," Tegmark concluded in a study of parallel universes published by Cambridge University. "Your alter ego is simply a prediction of the so-called concordance model of cosmology," he said. Another type of multiverse arises with the theory of chaotic inflation, which tells us that all these parallel worlds are expanding so rapidly -- stretching further and further in to space -- that they remain out of reach even if one could travel at the speed of light forever. Things get even stranger when one brings the often counter-intuitive laws of quantum physics into the picture, these experts say. In a landmark paper published in 1957 while he was still a graduate student at Princeton University, mathematician Hugh Everett showed how quantum theory predicts that a single classical reality should gradually split into separate but simultaneously existing realms. "This is simply a way of trusting strictly the fundamental equations of quantum mechanics," says Barrau. "The worlds are not spatially separated, but exist as kinds of 'parallel' universes." The borderline between physics and metaphysics is not defined by whether an entity can be observed, but whether it is testable, pointed out Tegmark. There are many phenomena -- black holes, curved space, the slowing of time at high speeds, even a round and rotating Earth -- that were once rejected as scientific heresy before being proven through experimentation, even if some remain beyond the grasp of observation, he said. He concluded that it was becoming increasingly clear that multiverse models grounded in modern physics could be empirically testable, predictive and disprovable. http://news.yahoo.com/s/afp/20071230...fmoKFHNT6s0NUE and in some parallel universe, i'm a republican, and bush is smart. but not in this one!!!!! __________________ "NEVER underestimate the Democrat's ability to snatch DEFEAT from the jaws of victory."
	Top

12-31-2007, 09:08 AM	#2 (permalink)
The_Heretic Master of Quill-Fu Space Invaders Champion! Join Date: Oct 2007 Location: Taylorsville, UT [stuck in the 20th century]. Posts: 6,381 My Mood: Blog Entries: 4 Thanks: 28 Thanked 96 Times in 69 Posts	I think their view of parallel universes is overly simplistic. The idea there's a copy of us assumes a narrower range of universal constants and probabilities than actually exist. Imagine where biological evolution could've gone but didn't. One more or less major asteroidal collision or one at a different time or of a different size or impact location and the entire history of live on Earth is different. And that's ignoring countless other factors affecting evolution. Plus, there might well be a parallel universe where the Earth didn't form or a planet did the composition and size are different. And then you have the unversal constant values for various forces. Any change down to the twenth decimal place and it all goes off some where else entirely. Even with an infinite number of parallel universes I'm convinced that each of us is wholly unique. __________________ John McCain: "He's in Iraq... with a few centuries to kill." *You won't fight for the Bill of Right? Fine! I won't fight for you in the ballot box!*
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12-31-2007, 09:23 AM	#3 (permalink)
Sean Banned Join Date: Nov 2007 Location: Austin, Texas...ya'll Posts: 1,552 My Mood: Blog Entries: 1 Thanks: 21 Thanked 18 Times in 10 Posts	I think in a parallel universe Dumbya is someone's pet turtle.
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01-02-2008, 04:59 PM	#10 (permalink)
mudwhistle Banned Join Date: Nov 2007 Location: Tennessee Posts: 949 Thanks: 178 Thanked 34 Times in 20 Posts	Somewhere in a parallel universe Fat Albert Gore might be telling the truth!
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