Multiverse

mickoking · #1 05-03-2006, 03:28 PM

I am a firm believer in the multiverse hypothesis http://antwrp.gsfc.nasa.gov/apod/ap060301.html and it seems like some quaters are a little uncomfortable with it (sound familiar Galileo)

stinky · #2 05-03-2006, 05:20 PM

If the universe(s) are independent of each other, have no influence/effect on each other, it can only ever be an idea with no scientificly verifiable basis.

If however there is influence / effect / between universes then they are not independent of each other therefore not seperate universes.

I always thought that the universe was the sum and total of everything?

GrampianStars (Rob) · #3 05-03-2006, 06:59 PM

I think that there have been multiple "Big Bangs" and proberley still happen out there somewhere.
I also think they are not independant universes just the 1 universe with multiple starts which interact when the blast horizons meet.

mickoking · #4 05-03-2006, 09:03 PM

Quote:

Originally Posted by stinky

I always thought that the universe was the sum and total of everything?

Maybe we should call the multiverse the Universe ?

mickoking · #5 05-03-2006, 09:09 PM

Quote:

Originally Posted by stinky

If the universe(s) are independent of each other, have no influence/effect on each other, it can only ever be an idea with no scientificly verifiable basis.

There is a theory I have heard that the gravity from the various universes leaks and effects other universes. This has been put forward for one reason for why the force of gravity is so much weaker than the other 3 forces (electromagnetic, strong nuclear and weak nuclear). the leaking gravity has also been put forward as an explanation for our own universe's cosmic accelaration.

cool stuff

stinky · #6 05-03-2006, 10:01 PM

I guess if we ever detct the "graviton" then there may be ways of testing these hypothesis.

ving (David) · #7 06-03-2006, 11:28 AM

you creat such interesting and thought provoking topics mick....

mickoking · #8 06-03-2006, 01:21 PM

There was a special bought out by Astronomy magazine a couple of years ago called origin and fate of the universe. If you can track down a copy It's an interesting read.

AGarvin · #9 06-03-2006, 02:16 PM

Quote:

There is a theory I have heard that the gravity from the various universes leaks and effects other universes. This has been put forward for one reason for why the force of gravity is so much weaker than the other 3 forces (electromagnetic, strong nuclear and weak nuclear). the leaking gravity has also been put forward as an explanation for our own universe's cosmic accelaration.

I think this is tied in with string theory. From memory, it's not other universes but the other dimensions in string theory that gravity is bound up in, and appears very weak when in only experienced in our three dimensions.

Not 100% on that though, must be looking into it further.

mickoking · #10 06-03-2006, 05:17 PM

The Multiverse hypothesis is little more than speculation. But to me it makes sense.

astroron (Ron) · #11 06-03-2006, 06:51 PM

If it is not testable then it is not Science but HYPOTHESES, and we can all HYPOTHASIS without fear of being wrong, to me it has to many flaws to be taken serously, but it sells good books.
Lets get the stuff we can test right before we start into the rhelm of fiction

mickoking · #12 06-03-2006, 07:04 PM

Quote:

Originally Posted by astroron

If it is not testable then it is not Science but HYPOTHESES, and we can all HYPOTHASIS without fear of being wrong, to me it has to many flaws to be taken serously, but it sells good books.
Lets get the stuff we can test right before we start into the rhelm of fiction

The sun centred solar system was once a hypothasis too. But to some it made sense and eventualy Kepler and Galileo proved that indeed the earth and other planets orbit the sun. Sometimes, some of us go out on a limb, that to me make's science exciting and a little reckless

cometcatcher (Kevin) · #13 07-03-2006, 02:16 AM

The concept of a multiverse is an interesting idea, and I suspect it might be true but that's more of a belief of mine more than anything else.

A popular belief with a lot of new age people too but then most of the ones I've met don't even have an idea of how our own universe works which is a pity.

Some people in the lucid dream internet group I frequent believe that our consciousness travels to other universes or dimentions when we sleep. Normally I wouldn't believe such notions and would consider them to be just creations of the physical mind but... I've had a couple of experiences that challenge that. I suppose if I told you I've been there you'd all think I was nuts. And you might be right. Unfortunatley like the film Contact, it's just as impossible to obtain any proof of it.

I want to wake up from this dream. I want to go back.

Pleasant dreams.

avandonk · #14 09-03-2006, 10:35 PM

I keep having this lucid dream I am stuck on an astronomy forum for eternity. I know it can't be real. Just have to wake up.

Bert

astroron (Ron) · #15 10-03-2006, 12:01 AM

The sun centred solar system Hypothasis was testable, this dream time stuff is not.
It seems that anytime there is a dispute about something in science and you don't believe then people bring up Galileo as if you are an heriatic in reverse, such things such as string theory, which seem to be unravelling all the time which is a case in point.

mickoking · #16 10-03-2006, 09:31 PM

Quote:

Originally Posted by astroron

The sun centred solar system Hypothasis was testable, this dream time stuff is not.
It seems that anytime there is a dispute about something in science and you don't believe then people bring up Galileo as if you are an heriatic in reverse, such things such as string theory, which seem to be unravelling all the time which is a case in point.

Very sorry If my opinion offends you. 100 years ago most people would have dismissed the Big Bang as dream time stuff too. To me the multiverse makes sense and if I am proved wrong I'll get over it.

astroron (Ron) · #17 11-03-2006, 01:21 AM

Your opinion didn't offend me, I just don't think multiverse deserves the coverage it get's, you are quite entitled to your opinion and I would be the last to begrudge you it. I think it was Samual Clemments (Mark Twain) who said something like, I may not agree with what you say, but I will defend your right to say it.

Rodstar (Rod) · #18 13-03-2006, 08:25 PM

Quote:

Originally Posted by cometcatcher

The concept of a multiverse is an interesting idea, and I suspect it might be true but that's more of a belief of mine more than anything else.

So long as we are all honest about the fact that we conduct our lives relying upon a lot of beliefs which are not scientifically verifiable.

josh (Luke) · #19 31-03-2006, 11:55 AM

Humans seem to have a silly habit of thinking they know it all when they prove a few facts, then they see theres more to it, get some facts, we've got it !... then theres some more.....
Its a funny old ride, it seems we can only open our minds for short times make some obs and grab some facts, then clam up again to digest and become accustomed to our new knowledge, it seems to help our digestion if we can convince ourselves that we now know it all.
Multiverse.. bring it on and lets have a chew!

jjjnettie (Jeanette) · #20 31-03-2006, 11:28 PM

SF Author Robert A Heinlein used the Multiverse in a few of his books, "The Number of the Beast" and "The Cat Who Walks through Walls" being just two.
He wrote about multiverses occuring due to time travel. eg if you went back in time, and prevented Hitlers conception, there would be a new universe / timeline made where there was no Hitler.
An interesting concept.