More than one universe?...multiverse?

[Cavernio]

Re: More than one universe?...multiverse?

Whoa, so I had some validity in talking about infinite density? Cool.
Go limit of 0/0.

[Lomir]

Re: More than one universe?...multiverse?

I believe the theory where that for every choice you come to make there is another universe/dimension created for each path you could of took, So every single possibility is played out in another universe...I also believe that there is research going underway to create a quantum mechanical computer, which basically, This is because if you can harness that power...theory states that the computer will of already computed the equation you want in another parrallel dimension, without you even turning on the computer...All quantum mechanics people...I think lol, light explores every single possible path it may take before it hits it's target...this is just an extension of that idea i believe...

Just think...Cool...I beat Doom 4273237 without even turning my pc on....

[MagicCarpetRide]

Re: More than one universe?...multiverse?

See heres what i think, IF youve ever played on any of those online games there are servers, Maplestory is popluar so lets use that for an example. Pretend we are on the windia server. We have no connection to the other server but they are in the exact same world as us. Everythings the same. I can't describe it very well but say god made a universe, our universe. Whos to say he didnt make another universe with the milky way and the sun and everything else but we have no connection to that universe. All the same mountains, all the same lakes, but all different people and animals.....Just thinka bout it.

[Kit-]

Re: More than one universe?...multiverse?

If there is such a thing as an alternate universe which we have no way of contacting, which I sincerely doubt, then why the hell do we care?

[this_n00b_rocks]

Re: More than one universe?...multiverse?

If there is such a thing as an alternate universe which we have no way of contacting, which I sincerely doubt, then why the hell do we care?

This is critical thinking. We care because we're intelligent.

[Reach]

Re: More than one universe?...multiverse?

I care because by nature I want to know the answers to the universe.

To assume that there is no way of contacting other universes is a fallacy. I think we, by 4000 AD, will look back on great thinkers of today with great respect, like we look at Aristotle or Plato, but also acknowledge how amazingly tiny their comprehension of the universe was.

[this_n00b_rocks]

Re: More than one universe?...multiverse?

I care because by nature I want to know the answers to the universe.

To assume that there is no way of contacting other universes is a fallacy. I think we, by 4000 AD, will look back on great thinkers of today with great respect, like we look at Aristotle or Plato, but also acknowledge how amazingly tiny their comprehension of the universe was.

Good point.

[T0rajir0u]

Re: More than one universe?...multiverse?

Well, we should all know infinity has no value, therefore you can't have more than infinity and the value of infinity can never change.

http://www.mathacademy.com/pr/prime/articles/cantor_theorem/

http://www.jcu.edu/math/vignettes/infinity.htm

some theories say that there're multiple dimensions

Yes, most theories say there are multiple dimensions. Forward/backward, left/right, up/down, and time being some of the popular ones.

http://en.wikipedia.org/wiki/Dimension

http://en.wikipedia.org/wiki/Dimension#Science_fiction

why are we sure matter isn't expanding with the size of the universe?

Science can never be sure of anything.

Most scientists agree that the amount of matter in the universe is a constant because a mechanism for the production/destruction of matter has not been observed, and because the lack of such a mechanism is consistent with the conservation of matter-energy. In fact, there are a couple of fringe theories (such as the Varying Speed of Light theory) that allow for matter destruction and creation.

So matter can't be infinitely dense somewhere? I think black holes are supposed to be very dense. Am I being completely nonsensical to say that perhaps they become inifintely so?

If matter were infinitely dense somewhere, then the gravitational pull it exerts would be infinite.

The concept of "density" needs to be treated carefully. Density = Mass / Volume. So we need to ask ourselves two questions:

1) What is the mass of a black hole?
2) What is the volume of a black hole?

The first question is not too hard. Something has to be generating all that gravitational force, so that's the mass of a black hole.

The second question is stranger. A possible answer:

http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/970808.html

Infinity is a word, not a number, that represents something we can not imagine.

It represents something impalpable, certainly, but I can imagine the concept just fine, and in fact it has a completely rigorous definition in mathematical contexts. In physical contexts, it usually makes no sense, and if it pops up in your equations it means your theory needs improvement.

I believe

Which automatically makes it true, right?

[Kit-]

Re: More than one universe?...multiverse?

This is critical thinking. We care because we're intelligent.

My point is, even if such a universe exists, if there is absolutely no way to detect or interact with said universe from ours, it might as well not even exist.

[Reach]

Re: More than one universe?...multiverse?

http://www.mathacademy.com/pr/prime/...antor_theorem/
http://www.jcu.edu/math/vignettes/infinity.htm

The easiest way to think of infinity is simply by its definition. Infinity is something that exists without being bounded. Most people take infinity as some sort of growing number, but they need to realize that something that is increasing is bounded, so it isn't infinite by definition.

(such as the Varying Speed of Light theory)

oh no you did not.

that's not even a theory. More like, one of the biggest loads of bs physics has ever had to deal with XD

More like, stupid idea originally made up by creationists in an attempt to get around the fact creationism by the bible is bull****.

My point is, even if such a universe exists, if there is absolutely no way to detect or interact with said universe from ours, it might as well not even exist.

There is absolutely no way to detect strings with our current technology or many things that could fundementally change the way we think about life, its meaning...and could radically change the foundation of our physics and its applications.

Yet we still attept to learn about them.

The entire point of going beyond what you can comprehend is an attempt to know beyond what you can comprehend. We wouldn't be where we are today if man did not have this inate desire.

[T0rajir0u]

Re: More than one universe?...multiverse?

oh no you did not.

that's not even a theory. More like, one of the biggest loads of bs physics has ever had to deal with XD

More like, stupid idea originally made up by creationists in an attempt to get around the fact creationism by the bible is bull****.

http://www.amazon.com/exec/obidos/ASIN/0738205257

*shrug*

[Lomir]

Re: More than one universe?...multiverse?

Hmmm, I should o put, If i remember correctly..It where late my fault.

[this_n00b_rocks]

Re: More than one universe?...multiverse?

There's a Varying Speed of Light theory? That would totally screw up E=mc^2 if it were true. Who thought of that?

[T0rajir0u]

Re: More than one universe?...multiverse?

That would totally screw up E=mc^2 if it were true.

yes and relativity is obviously the inviolate truth just like the bible was right

Look, I've said it before and I'll say it again. Science isn't an absolute. Scientists never say that they know everything and that all of their equations are 100% correct. There is experimental evidence that contradicts relativity (certain cosmic rays have been observed to have an energy above a certain threshold predicted by relativity; at that energy, the ray should start producing other particles, losing energy), which tells us what we already knew: that relativity isn't the be-all and end-all of the explanation of the universe.

I'm not saying that VSL is the right theory, either. It's probably not. It might not even be any closer. I'm just saying that people need to realize that Einstein couldn't possibly have gotten it 100% right.

[Reach]

Re: More than one universe?...multiverse?

No, VSL isn't a theory.

It's been debunked time and time and time again, because it's a popular creationist argument. The entire thing resulted not through experiment, but through people that made it up to try and find a solution to how the universe could be so young.

And then there were a whole bunch of so called experiments done in the 1900's that were all faked, fake data ect.



And uh, yea. People that are actually familar with the mathematics of relativity know that it isn't correct. But it's extremely close to being correct.

Relativity is never going to be debunked or anything, but it isn't quite the whole picture. We still need more pieces to finish the puzzle.