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Parallel universes exist - study

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posted on Sep, 24 2007 @ 02:46 PM
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Parallel universes exist - study

This mathematically confirms something a lot of people have thought.

Story here

Parallel universes really do exist, according to a mathematical discovery by Oxford scientists described by one expert as "one of the most important developments in the history of science".

The parallel universe theory, first proposed in 1950 by the US physicist Hugh Everett, helps explain mysteries of quantum mechanics that have baffled scientists for decades, it is claimed.

In Everett's "many worlds" universe, every time a new physical possibility is explored, the universe splits. Given a number of possible alternative outcomes, each one is played out - in its own universe.

A motorist who has a near miss, for instance, might feel relieved at his lucky escape. But in a parallel universe, another version of the same driver will have been killed. Yet another universe will see the motorist recover after treatment in hospital. The number of alternative scenarios is endless.

It is a bizarre idea which has been dismissed as fanciful by many experts. But the new research from Oxford shows that it offers a mathematical answer to quantum conundrums that cannot be dismissed lightly - and suggests that Dr Everett, who was a Phd student at Princeton University when he came up with the theory, was on the right track.

Commenting in New Scientist magazine, Dr Andy Albrecht, a physicist at the University of California at Davis, said: "This work will go down as one of the most important developments in the history of science."

According to quantum mechanics, nothing at the subatomic scale can really be said to exist until it is observed. Until then, particles occupy nebulous "superposition" states, in which they can have simultaneous "up" and "down" spins, or appear to be in different places at the same time.

Observation appears to "nail down" a particular state of reality, in the same way as a spinning coin can only be said to be in a "heads" or "tails" state once it is caught.

According to quantum mechanics, 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.

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.




posted on Sep, 24 2007 @ 02:53 PM
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ok then fine but can we go there to see what our actions would have provided us because we wonder what if



posted on Sep, 24 2007 @ 03:01 PM
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I think its very interesting, but it almost seems impossible. Think about how many actions we all make during a day. There must be millions. And the alternative to these actions are executed in another universe? Thats billions of actions. For one person for one day.

Then you have to do the same thing for every object in the world... I mean, the number of possible outcomes in a world would be a number larger than the number of planets in the universe, wouldnt it?



posted on Sep, 24 2007 @ 03:04 PM
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"....Observation appears to "nail down" a particular state of reality, in the same way as a spinning coin can only be said to be in a "heads" or "tails" state once it is caught....." as quoted by Ziltoid_the_Omniscient

That is the same theory that is mentioned along with quantum physics. Essentially, electrons exist in all possibilities however, as soon as they are observed, only one possibility manifests. They explain it quite well in the movie "what the bleep do we know?".



posted on Sep, 24 2007 @ 04:22 PM
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I have always thought of it along the lines of:

Imagine cg fractal image with a branch for every possibility in this universe and each branch represents a parallel universe. and the observation nailing it down part is just for the universe that the version of you is in.

Now its hard to imagine so many physical universes for every choice, but what if it wasn't physical, but a computer model, what if it was a computer model in a computer 1000 times beyond the powers of a quantum computer. No imagine that all of these branches running simultaneously in this hotrod computer could be generated in a few minutes that span the lifetime of our virtual universes.

If this were true could we ever progress enough to prove it?



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