It's plausible that a parallel (or multiple parallel) universe(s) exist. If they do, would we ever see them? Not even in my lifetime, most likely, as our current technology wouldn't allow for that.

As to what's living on our planet's parallel? Personally, I hope it's anthros, and there are no humans.

There are parallel universes just like there are dimensions. It's hard to believe because we live in "normal" but look at us from another perspective and we are a floating ball in absolute space.

Just because you can't see, hear, taste, touch, feel, see or think something doesn't mean it doesn't exist.

And if you think about it it is more possible then impossible. If you can make a wormhole in space that is like us walking through a mirror in paris and arriving in the USA on the other side. Stuff in space is like the exact opposite as it is here that is why we can't accept or believe it.

Just like how god is probably an absolute nothing. You cant see, hear, taste, touch, feel, or see god but when you enter another dimension you will. Mind tricks I tell you, that is how I think it works

We have apples down here
There are no apples up there

We have gravity down here
There is no gravity up there

We have milkyway down here
... and There is a milky way up there (In different form then a candy bar though )

The list goes on...

And I've also seen some scientists say that space is like a big optical illusion similar to a mirror which it bends like a two way mirror and basically inbetween the two sides is where the magic happens. Who knows though just saying what I have heard and think.

As far as parallel universes are concerned, by most definitions, it would rely on the existence of a 4th dimension (or phasing of matter or something where it's on a different frequency where we cannot detect or interact with it yet). As far as a 4th dimension goes, I'm not convinced there is one, at least for Humans. If something can go in one direction, then there must be some way of it working backwards, even if it's a bit awkward for for us to do so. Now consider this; can an object exist that has less than 3 dimensions? I don't mean like drawing a square on a piece of paper, because that's just an assumed figure. Now, if it can't have less than 3 dimensions, how can it have more? Perhaps humans perceive things in 3 dimensions and nothing anywhere will deviate from that because that is how we perceive everything.

I'll clear a couple things up. First, there is a 4th dimension- Time. Time is the 4th dimension. What you're thinking of is a "spatial dimension". You are correct to assume there is no 4th spatial dimension, if that's what you were assuming. And yes there is a way to go "backwards" in time. I've actually read about it in a science magazine. It involves bending space around in a tube that goes back on itself. It's very difficult for me to explain without looking at that article and I've probably only got that short explanation half right.

Too us, two dimensions does exists. The way we see things as detailed as we can is how we determine if an object has either 2 or 3 dimensions. Like bacteria. From our eyes, even with the aid of microscopes, bacteria is two-dimensional, having only length and width. However, as we get down to the microscopic level we can see more and more that the bacteria have depth to them. Molecules that make up the organism are stacked in height as well as length and width. Even down to the atomic level we find that atoms themselves, and even smaller particles than that are most likely to be spherical- a 3-D shape. I don't know if there truly is such a thing as a 2-dimensional object in this universe but shapes from our eyes would define it as that. Anything lower does exist, or has characteristics of them. An example of a zero-dimensional object, a "point", is the center of a black hole. Matter sucked into a black hole gets crushed into a singularity deep inside. A point in the hole with no size or depth. It is infinitely small. That is physical proof of a "point".

I'll get back on topic and give my opinion that I believe in a "multi-verse". While parallel universes may exist, there has recently been more information regarding possibles existences of multiple universes. Even before I read about the subject, I always felt that it was true. Stories I came up with in my mind involve a character traveling out of our known universe and into another. A universe with completely different physics, matter and energy. Things there worked on a different scale than they do in our space. Further more, in my story, anything from a different universe coming into ours suffered changes with the way it was. It's matter and physics conflicted with how things here work. I can only guess right now that my "theory" would actually happen in reality. It seems like it could but I'm not going to claim anything just yet. If at all.

I've also considered the concept of time travel, but it creates too many paradoxes. If you go back in time, you forever change everything that happened after it and therefore, never would go back in time in the first place, and therefore would have reason to go back in time again because it never happened... well, you get it. Going forward in time brings up the paradox that it can't work in reverse. I see time as a perception; it's just our way of explaining things to ourselves. Which would also explain why some people and animals are better at judging time than others; they perceive it differently.

I think that parallel universes are possible, but I don't think people would be able to travel between them.

there are plenty of theories about mulitple universes. There is one theory I heard the suggests every time a choice is made there is a new universe created where the a different choice was made from the one you made. This creates so many universes that they would be truly infinite to us.

I've also heard other theories that there are just other universes that can be traveled to that are different from the one we live in. Things are different there from what they are here.

It's a cool idea but as of right now we have no way of traveling to any parallel universe.

The chances that there is a parellel universe are not very good but I could be wrong you never know unless you find out what you're looking for

Originally posted by JigSaw

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Just like how god is probably an absolute nothing. You cant see, hear, taste, touch, feel, or see god but when you enter another dimension you will. Mind tricks I tell you, that is how I think it works

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Well, I'm not sure about the wording of that statement, but I can see the parallel you're drawing. ;-)

Yes, in our third dimension we are technically restricted to three directions of spatial movement. However, try to wrap your minds around this: a Möbius strip refers to a shape that has only one edge and one side. As a result, a Möbius strip technically does not have to have depth or width in order to exist. Just try to picture in your mind a line bent into the shape of the strip. As such, one can conceive of the Möbius strip as a one-dimensional object. However, it has been "bent" into three dimensions, much like how our universe is three-dimensional but is theoretically "bent" into four dimensions, which is how worm holes work.
So just because four-dimensional movement can't be observed in our universe doesn't mean that it doesn't exist.

Now, the way I'm able to argue for theist thought against scientifically-minded atheists is through the use of logic. That's a habit I developed because there is no currently-recorded scientific evidence to support the existence of a god, only logical evidence. In the same way, as far as I know, there isn't a ton of scientific evidence that can be used to prove the existence of a fourth or fifth dimension, or an alternate universe (although I might be jumping the gun on that statement because there's a book I saw that might contain such evidence, but I haven't actually read it yet.)

The reason I can believe in alternate universes without the presence of logical or scientific evidence is the principle of the open mind. When some people hear "open mind," they hear "acceptance of other ideas without question," but I take the statement differently by questioning everything. By asking questions about everything I'm able to challenge myself to believe things while trying to convince myself not to believe them. As such, I do believe in parallel universes for the simple reason that I have not been convinced they do not exist, and it is also one plausible explanation for the abduction phenomenon.

I've held to the belief for a while that if one can conceive of something then it must technically be "possible:" we can't conceive of fourth-dimensional movement because it is impossible for us. However, we are able to imagine "scientifically impossible" and fantastic things such as time travel and dragons and Obama's stimulus plan. As such, in my opinion, there's no real reason these things can not exist and operate properly; they just haven't been observed. As such, parallel universes are one explanation for logic like this: time travel may not be possible in our universe, but it could presumably be in another universe; dragons may not exist in our universe, but they could conceivably on a different world; Obama's stimulus plan may make no logical sense here, but on another universe it may be regarded as "common fact." You get the picture.

I think the concept of a parallel universe is interesting and quite possible. It's something that we doubtlessly have trouble understanding right now but I am sure that we'll work it out eventually. Would be cool if we could visit it though.

I beleive in parallel universes. The thought is interesting, and really, there is a surpricing amount of proof that they exist. Quantum Physics, (or whatever that sh*t is) apparently can prove the existense of other dimensions... Which could contain other life.

I think that if there was a hole in the space-time continium (I watch Star Trek too much) we could travel between them, but there is no way just to appear there whenever we want to,