[baudrunner]

By definition alone there can only be one universe for it is defined as that which encompasses all. However, that is not science, but semantics.

Still, I believe that there is one and only one universe. It is tempting to think of creation in the opposite direction yielding an anti-matter universe, but anti-matter exists only in the one and only universe. We could have been, or could be anti-matter, because all an anti-matter particle is is a particle which has the opposite properties of spin, direction, and orientation to its complementary matter particle.

Before the many Big Bangs that ultimately yielded the matter particles that are compatible for the generation of all the matter in this universe as it now exists there were stereometric equivalents of all the sub-particle configurations that created themselves out of the original spinning strings left behind by the accelerating creation front and they can be construed as anti-matter equivalents. Ultimately, one quantity wins over the other and this universe could just as easily have gone with the stereometric opposites. Or it did. It's academic. But I prefer to believe that there was a generous predominance of the particles that make up matter today. Why? Because creation happened in the one direction only, and the spins of those original strings would have been oriented in a dominant direction, with rare exceptions. Anti-matter particles would have been just as rare then as now.

But leave it not go unrepeated that while mathematical what-ifs can easily propose other universes there aren't any. And the one that exists cannot be observed from the outside because there isn't any outside. It can only be observed from within. Sorry, no bubble universes, no other dimensions, no alternate universes. Just the Universe.

I am a fierce proponent of practical science.

[michellemfry]

What is the universe? The universe is everything that exists. Everything is a part of the universe. There is nothing beyond the universe, because the universe contains all of time and space within it. Most of the universe consists of the empty space between objects.

[michellemfry]

It seems as if most people believe in one and only universe. It contains everything that exists. Lucky universe. Now if we could just have one and only theory of everything. It is possible. Einstein said so. Maybe we could call it Lucky Universe: The One That Could Be and Why.

[AntonioLao]

For the validation of CPT Theorem requires the existence of an antiuniverse, the conjugate pair to our universe and where all the antimatter is supposed to exist. The true vacuum separates these two universes.

[Rufus]

"I am a fierce proponent of practical science." says Baudrunner

You imagine, you create, then you study what you have created. You did not come from mindless matter...your practical science is in your on mind...imaginary. There are as many universes as you care to appreciate.

Namron (Rufus)

[michellemfry]

Wanting one and only one does not necessarily make it so. The anti-universe has been as a result of a mathematical solution in the equation of the electron.

[Rufus]

Michelle

The idea that nothing is the most natural state of reality is universal. To exist requires that we realize that we do and in doing so we understand non-existence. Existence requires a balance with non-existence...a fundamental law. If we want to accept a material universe then it only follows that an anti-matter one MUST exist.

Rufe

[michellemfry]

You don't need to convince me. I voted for three.

[David Maes]

Originally Posted by dleviwing Only a being such as Star Trek's "Q" could answer this question; however I would suspect no less than two and no more than many. Infinite cannot be attained by physical entities. All physical entities are finite. Since many includes all numbers greater than 1, I chose "many", but not occupying the same location of the void.

No Dave, there is only one.

[mkirkpatrick]

There is one universe as there is one life,and these are expressedin an infinite number of ways.


kind regards michael.