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Parallel Universes: Are They More Than a Figment of Our Imagination? A Galaxy Classic
The Daily Galaxy ^ | 5/21/09

Posted on 05/21/2009 1:44:04 PM PDT by LibWhacker

"The multiverse is no longer a model, it is a consequence of our models.” ~Aurelien Barrau, particle physicist at CERN

The Hollywood blockbuster, The Golden Compass, adapted from the first volume of Pullman's classic sci-fi trilogy, "His Dark Materials" portrays various universes as only one reality among many, but how realistic is this kind of classic sci-fi plot? While it hasn’t been proven yet, many highly respected and credible scientists are now saying there’s reason to believe that parallel dimensions could very well be more than figments of our imaginations.

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

There are a variety of competing theories based on the idea of parallel universes, but the most basic idea is that if the universe is infinite, then everything that could possibly occur has happened, is happening, or will happen.

According to quantum mechanics, nothing at the subatomic scale can really be said to exist until it is observed. Until then, particles occupy uncertain "superposition" states, in which they can have simultaneous "up" and "down" spins, or appear to be in different places at the same time. The mere act of observing somehow appears to "nail down" a particular state of reality. Scientists don’t yet have a perfect explanation for how it occurs, but that hasn’t changed the fact that the phenomenon does occur.

Unobserved particles are described by "wave functions" representing a set of multiple "probable" states. When an observer makes a measurement, the particle then settles down into one of these multiple options, which is somewhat how the multiple universe theory can be explained.

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

Mathematician Hugh Everett published landmark paper in 1957 while still a graduate student at Princeton University. In this paper he showed how quantum theory predicts that a single classical reality will 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."

Partly because the idea is so uncomfortably strange, it’s dismissed as sci-fi by many critics. But there are also many credible, respected proponents of the theory—a group that is continuously gaining new adherents as new research unveils new evidence. Some Oxford research—for the first time—recently found a mathematical answer that sweeps away one of the key objections to the controversial idea. Their research shows that Everett was indeed on the right track when he came up with his multiverse theory. The Oxford team, led by Dr David Deutsch, showed mathematically that the bush-like branching structure created by the universe splitting into parallel versions of itself can explain the probabilistic nature of quantum outcomes.

The work has another strange implication. The idea of parallel universes would apparently side-step one of the key complaints with time travel. Every since it was given serious credibility in 1949 by the great logician Kurt Godel, many eminent physicists have argued against time travel because it undermines ideas of cause and effect. An example would be the famous “grandfather paradox” where a time traveler goes back to kill his grandfather so that he is never born in the first place.

But if parallel worlds do exist, there is a way around these troublesome paradoxes. Deutsch argues that time travel shifts happen between different branches of reality. The mathematical breakthrough bolsters his claim that quantum theory does not forbid time travel. "It does sidestep it. You go into another universe," he said. But he admits that there will be a lot of work to do before we can manipulate space-time in a way that makes “hops” possible. While it may sound fanciful, Deutsch says that scientific research is continually making the theory more believable.

"Many sci-fi authors suggested time travel paradoxes would be solved by parallel universes but in my work, that conclusion is deduced from quantum theory itself."

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

He points to phenomena such as black holes, curved space, the slowing of time at high speeds, even a round Earth, which were all once rejected as scientific heresy before being proven through experimentation, even though some remain beyond the grasp of observation. It is likely, Tegmark concludes that multiverse models grounded in modern physics will eventually be empirically testable, predictive and disprovable.


TOPICS: Astronomy; Science
KEYWORDS: houseofcards; multiverse; multiverseuniverse; parallel; sillygism; stringtheory; syllogism; universes
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To: LibWhacker
But he admits that there will be a lot of work to do before we can manipulate space-time in a way that makes “hops” possible.

Worlds separated by nanoseconds would be so similar a person wouldn't know if they had "hopped". Astronauts are a few seconds off - maybe a million worlds away - and yet "here"....

21 posted on 05/21/2009 3:14:45 PM PDT by GOPJ (If printing money was an answer, why don't Haitians "print" their way out of poverty?)
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To: LibWhacker

The “many worlds” interpretation of quantum mechanics is an attempt to resolve the “measurement problem” by saying that all such measurements occur and define a branching reality. The quantum space time is reduced, or amplified, into a stupendously multifarious and phantasmogoric static space-time, and our subjective life journey is held to be an illusion, with the apparent “nowness” that we experience occurring at all times and places equally, and with equal conviction of uniqueness.

This construct bears no resemblance whatsoever to the popular notion of parallel universes, which includes the possibility of people and objects moving between them.


22 posted on 05/21/2009 3:39:44 PM PDT by dr_lew
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To: dr_lew

“The Elegant Universe” by Brian Greene...you might enjoy it.


23 posted on 05/21/2009 3:41:52 PM PDT by gorush (History repeats itself because human nature is static)
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To: LibWhacker
Your own personal Utopia?

It reminds me of the movie "What Dreams May Come." An older Robin Williams flick. Good movie even though I can't stand his acting.

24 posted on 05/21/2009 3:53:39 PM PDT by Sawdring
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To: Salamander
One of my favorite lines from a movie: "Don't touch it, it's evil."


25 posted on 05/21/2009 3:55:30 PM PDT by Sawdring
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To: AdmSmith; bvw; callisto; ckilmer; dandelion; ganeshpuri89; gobucks; KevinDavis; Las Vegas Dave; ...
Seems like an appropriate topic to ping.

· String Theory Ping List ·
Sorry we re open
· View or Post in 'blog · Join · Bookmark · List topics · Google ·

26 posted on 05/21/2009 5:40:24 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/____________________ Profile updated Monday, January 12, 2009)
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To: SunkenCiv

Dr. Michio Kaku’s take on Parallel Universes really makes me believe it’s possible!

You should go to his Facebook group and watch the videos he has posted.


27 posted on 05/21/2009 5:41:25 PM PDT by autumnraine (Freedom's just another word for nothing left to lose- Kris Kristoferrson)
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As a man who has devoted his whole life to the most clear headed science, to the study of matter, I can tell you as a result of my research about atoms this much: There is no matter as such. All matter originates and exists only by virtue of a force which brings the particle of an atom to vibration and holds this most minute solar system of the atom together. We must assume behind this force the existence of a conscious and intelligent mind. This mind is the matrix of all matter. -- Max Planck, 1944

28 posted on 05/21/2009 5:42:43 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/____________________ Profile updated Monday, January 12, 2009)
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To: buccaneer81
SLIDERS


29 posted on 05/21/2009 5:59:58 PM PDT by Hot Tabasco (This country isn't going to hell in a handbasket, it's riding shotgun in an Indy car....)
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To: Hot Tabasco

They kill me. Now they have a BBQ beef slider. I’m afraid to try it.


30 posted on 05/21/2009 6:01:53 PM PDT by buccaneer81 (Bob Taft has soiled the family name for the next century.)
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To: SunkenCiv

INDEED.


31 posted on 05/21/2009 6:55:26 PM PDT by Quix (POL Ldrs quotes fm1900 2 presnt: http://www.freerepublic.com/focus/religion/2130557/posts?page=81#81)
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To: autumnraine

thanks. If you have the link, it may be of interest to all.


32 posted on 05/21/2009 7:27:38 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/____________________ Profile updated Monday, January 12, 2009)
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To: LibWhacker
He points to phenomena such as black holes, curved space, the slowing of time at high speeds, even a round Earth, which were all once rejected as scientific heresy before being proven through experimentation, even though some remain beyond the grasp of observation. It is likely, Tegmark concludes that multiverse models grounded in modern physics will eventually be empirically testable, predictive and disprovable.

I smell bullshit.

You can prove it through experimentation, but you cannot observe it? WTF do you think experimentation is?

LOL.

33 posted on 05/22/2009 12:17:32 AM PDT by grey_whiskers (The opinions are solely those of the author and are subject to change without notice.)
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To: SunkenCiv
Source for the quote, please?

Cheers!

34 posted on 05/22/2009 12:20:19 AM PDT by grey_whiskers (The opinions are solely those of the author and are subject to change without notice.)
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To: All

This is the BBC series on Parrallel Universes featuring Dr. Michio Kaku. Very very interesting and he explains in a way that even little ole me can understand it. This is why I adore him! It’s in 5 parts and I can’t believe I’m praising the BBC, but sometimes they can put out some vids that compete with Discovery in interesting topic.

http://www.youtube.com/watch?v=Z7SDrj4Tjvk

http://www.youtube.com/watch?v=SHzU3fgID3o&feature=related

http://www.youtube.com/watch?v=dVfw1XOIFGk&feature=related

http://www.youtube.com/watch?v=P-mLF23JzKA&feature=related

http://www.youtube.com/watch?v=GRRBz9b6mvA&feature=related


35 posted on 05/22/2009 3:49:44 AM PDT by autumnraine (Freedom's just another word for nothing left to lose- Kris Kristoferrson)
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To: LibWhacker
The Multiverse theory is gaining popularity in part as a reaction against one of the foundational principles of Intelligent Design theory.

Namely: if this universe is all that truly exists, then its "fine tuning" is truly remarkable and must be explained away.

If the Multiverse theory is true, then the universe we occupy is just one of countless realities, and the fine tuning is nothing remarkable -- it just happens to be the characteristics our universe ended up with.

Science's Alternative to an Intelligent Creator: the Multiverse Theory

Laws of Nature, Source Unknown

36 posted on 05/22/2009 7:00:11 AM PDT by Constitutionalist Conservative (Two blogs for the price of none!)
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To: SunkenCiv

That’s a beautiful quote. Who says science is anti-God?


37 posted on 05/22/2009 9:16:37 AM PDT by LibWhacker
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To: LibWhacker
A better understanding of the exact differences between space, matter, and energy (if there are that many) could make this possible to explore in the future. The main ingredient needed to explore these ideas is a currently unimaginable amount of energy. Vacuum fluctuations prove that we are surrounded by it, yet don't understand it.
38 posted on 05/22/2009 2:28:38 PM PDT by allmost
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To: LibWhacker

heh... exactly so... I looked up the quote, because I remembered the “no matter as such” part, and when I saw the rest, I thought it would be (at least) pretty fun to post it.


39 posted on 05/22/2009 5:30:07 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/____________________ Profile updated Monday, January 12, 2009)
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To: Bratch

I gotta say that is the coolest looking Spock there is....


40 posted on 05/22/2009 6:07:01 PM PDT by NYFreeper
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