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Are there parallel universes?

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progaspie
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04 Dec 2014, 4:38 pm

wittgenstein wrote:
I admit the possibility that God exists and parallel universes exist. What I am saying is that if parallel universes do not exist then there has to be a designer, which most call God.
If the physical constants in our universe were off by one millionth of a %,life would be impossible.
However, if there are billions of parallel universes (each one having different constants) then it is not a miracle that we find ourselves in a universe that has constants perfectly suited for life. Similarly, we do not think it a miracle that fish find there watery environment perfectly suited for fish. Fish would not exist without water.
If my computer generates trillions of letters,it is not a miracle that occasionally a word is spelled.

God is a convenient explanation for all the things we don't understand. I do however agree with you that parallel universes exist because the theory of nothing explains it and string theory predicts it. If you can create matter in a vacuum which matematically can be proven, where did the rest of the matter go? Parallel universes are the only valid explanation.



progaspie
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04 Dec 2014, 4:47 pm

Inventor wrote:
Invention is an art that has produced more than Science.


Light does not always move at the same speed. Light from the Sun is slowed by Gravity. Light from other stars is bent as it passes near the sun. Some time around 1920, the well known speed of light changed. We have no idea why. Since then it has been a local constant. It might be different on Mars

Only by doubting everything can an open mind be maintained, and focused on what is really there.

Invention is the Art of seeing reality.

That's not my understanding of the speed of light, which I believe to be constant, as stated by Einstein. Light rays are bent by gravity as predicted by the theory of relativity, but the light rays don't change speed.



Fnord
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05 Dec 2014, 9:43 am

Inventor wrote:
... Light does not always move at the same speed. Light from the Sun is slowed by Gravity. Light from other stars is bent as it passes near the sun. Some time around 1920, the well known speed of light changed. ...
WRONG!

The speed of light in a vacuum has not changed; only our ability to accurately measure the speed of light has changed. The speed of light may change only when encountering a gravitational or material lens -- this is the foundation of our science of Optics, and the basis for any light-refractive device (i.e., eyeglasses, microscopes, telescopes, prisms, et cetera).

In 1975 the speed of light was determined to be 299,792,458 m/s with a measurement uncertainty of 4 parts per billion, after centuries of increasingly precise measurements.

progaspie wrote:
That's not my understanding of the speed of light, which I believe to be constant, as stated by Einstein. Light rays are bent by gravity as predicted by the theory of relativity, but the light rays don't change speed.
Since time moves slower in a gravitational field or refractive material, light moves slower as it passes through, and then resumes speed as it leaves. This refractive effect is more pronounced at shorter wavelengths; thus, blue light is "bent" more by a lens or prism than red light, which is why we have rainbows and spectra.

Here is a well-written article on Refraction of Light that may be helpful.



B19
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05 Dec 2014, 6:16 pm

http://blogs.discovermagazine.com/crux/ ... II8dtKUeNA

Some food for thought...



slave
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06 Dec 2014, 4:29 am

wittgenstein wrote:
You have no clue as to who I am! Troll? Because I pointed out that only a multiverse or a designer of the universe can explain the astounding amount of fine tuning? Because I do not use wienie words? I suppose you would prefer if I said "pacify ISIS" rather than the more honest "kill them".
Conservative?? :D please read a few more posts. Yes, I know you are still a kid and are more emotion than logic. But try to control yourself.


WOW....you are really something!.....wow!



DentArthurDent
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08 Dec 2014, 8:09 pm

wittgenstein wrote:
It is the only explanation as to why our universe is so finely tuned for our existence. If it were not for the idea of parallel universes I (as a logical person) would have to believe in a designer.
Seriously, there are only two options.
1. God exists.
2. Parallel universes exist.
PS: I am an agnostic atheist. Therefore I prefer option 2. However, as an agnostic I do not claim certainty.
The multi-verse also fits into the Everrt many worlds explanation of quantum mechanics.


This pretty much sums it up for me. We have absolutely no evidence for a creator god but we do have evidence for the existence of what we like to call a universe. The idea that some people have that the existence of multiple universes is simply a foolish way to defend dogma makes me laugh. How many times do we have to be shown that we are not the centre of attention. First we thought the sun and planets revolved around our stationary earth, then we found out that the solar system is heliocentric. Then we decided that the solar system was the extent of the universe, low and behold we discover the Milky Way. The we argue that there are no other planets, we now realise that there must be billions if not trillions of them. Considering the constantly disproved notion of a human centric universe why do people still continue in this fashion. So for me that fact that we know of at least one universe and that the evidence points to a naturalistic explanation of multiple versions of what we know to already exist, I will go with that over the repeatedly disproved notion of Devine intervention.


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Aspiewordsmith
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12 Dec 2014, 2:06 pm

Parallel universes? Sounds like religion to me but string theory and its 11 dimensional cousin M theory predicts it.