If parallel universes exist....

dalv8409 · #1 by **dalv8409** » Jan 10, 2012 9:20 pm

Not sure if this is in the right section. Now I don't know that much about physics (just the basics) but I always loved the ideas and theories about parallel universes (in fact I'm writing a script for a TV series or Web series about parallel universes but that's another story). Now if they do exist and if we could travel to one and even communicate between universes would you move to one? The way I see it is we are fucked basically with the population increasing, the enviroment changing as so on so the way I see it is if a parallel universe of your choice could exist and if travel and communication between universes is possible then we might as well get out of this one. Would you do it or would you continue to live in this universe?

twistor59 · #2 by **twistor59** » Jan 10, 2012 9:28 pm

Maybe another planet would be easier, before we start dropping our McDonalds containers in another universe.

HughMcB · #3 by **HughMcB** » Jan 10, 2012 9:30 pm

Most likely we couldn't survive in another universe.

sandycool · #4 by **sandycool** » Jan 14, 2012 3:49 pm

Actually these parellel universes are hypothetical..scientists like brain greene believe that communacation between these universes might be possible by gravity..may be we can never actually reach them

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chairman bill · #5 by **chairman bill** » Jan 14, 2012 4:55 pm

Can I have the universe where beautiful women find me irresistible, fall at my feet & swear undying love for me?

dalv8409 · #6 by **dalv8409** » Jan 14, 2012 5:00 pm

chairman bill wrote:Can I have the universe where beautiful women find me irresistible, fall at my feet & swear undying love for me?

Well Bill I remember one scientist saying that anything you can think of may exist in another universe so if parallel universes do indeed exist then maybe the universe you want does exist. The question is will you be happy for your counterpart or will you be jealous of your counterpart or both?

twistor59 · #7 by **twistor59** » Jan 14, 2012 5:03 pm

chairman bill wrote:Can I have the universe where beautiful women find me irresistible, fall at my feet & swear undying love for me?

Would you settle for one where beautiful women swear AT you ?

Edit: Welcome sandycool :cheers:

Animavore · #8 by **Animavore** » Jan 14, 2012 5:05 pm

Well I wouldn't mind too much but I'd have to let someone else go first and see if their particles get ripped apart before I even step across. You don't know what way the forces of gravity, electro-magnetism, weak and strong nuclear forces are going to be if any at all. Another universe could be instantly fatal.

chairman bill · #9 by **chairman bill** » Jan 14, 2012 5:06 pm

twistor59 wrote:
chairman bill wrote:Can I have the universe where beautiful women find me irresistible, fall at my feet & swear undying love for me?

Would you settle for one where beautiful women swear AT you?

I'm already there

cavarka9 · **#10** by **cavarka9** » Jan 15, 2012 3:59 am

dalv8409 wrote:
chairman bill wrote:Can I have the universe where beautiful women find me irresistible, fall at my feet & swear undying love for me?

Well Bill I remember one scientist saying that anything you can think of may exist in another universe so if parallel universes do indeed exist then maybe the universe you want does exist. The question is will you be happy for your counterpart or will you be jealous of your counterpart or both?

people expect too much even from the multiverse, unfortunately for you and many others intelligence and reason exist in those other universes just as much as it exists here so you should only wish for reasonable wishes, just wish for loads of money and a real love potion and perhaps you might get your wish in this universe.

Lance · **#11** by **Lance** » Jan 18, 2012 1:41 am

If multiple universes exist, then the chances are that it would be very, very difficult, if not impossible to cross anyway. Second, the vast majority would be inimical to life, because the laws of physics would not be the same. If you crossed to another universe, chosen at random, you would probably cease to exist. Instantly! Painless suicide.

klazmon · **#12** by **klazmon** » Jan 18, 2012 3:26 am

Multiple/parallel universes is nonsense term. It is a logical contradiction of the meaning of the word universe, namely 'all that exists'.

cavarka9 · **#13** by **cavarka9** » Jan 18, 2012 11:59 am

klazmon wrote:Multiple/parallel universes is nonsense term. It is a logical contradiction of the meaning of the word universe, namely 'all that exists'.

There must be a difference between our verse and others, so universe could be good enough to explain our verse, it is huge by the way, Also, parallel universes is apt because they are different solutions, different possibilities of what we could have been.

How else can we explain our clones?.

hackenslash · **#14** by **hackenslash** » Jan 18, 2012 12:02 pm

klazmon wrote:Multiple/parallel universes is nonsense term. It is a logical contradiction of the meaning of the word universe, namely 'all that exists'.

klazmon · **#15** by **klazmon** » Jan 18, 2012 12:04 pm

cavarka9 wrote:
klazmon wrote:Multiple/parallel universes is nonsense term. It is a logical contradiction of the meaning of the word universe, namely 'all that exists'.

There must be a difference between our verse and others, so universe could be good enough to explain our verse, it is huge by the way, Also, parallel universes is apt because they are different solutions, different possibilities of what we could have been.

How else can we explain our clones?.

It's a wrong usage of the term universe which leads to equivocation. What is really meant is that the universe has more than four dimensions.

MacIver · **#16** by **MacIver** » Jan 18, 2012 12:16 pm

hackenslash wrote:
klazmon wrote:Multiple/parallel universes is nonsense term. It is a logical contradiction of the meaning of the word universe, namely 'all that exists'.

Whilst this is true, the meaning of words change. Yes, the word "universe" literally means everything but it's not inconceivable that it will come to mean our current observable universe while the term existence will mean all that exists. Isn't it?

To address the OP the thing that always annoyed me about programmes like Sliders is that if the Many Worlds interpretation is correct and a molecule fulfils every possible destiny then there would be an infinite number of realities. If this is the case there would be an infinite number of universes that would be identical to ours, or near enough to identical that it would be impossible to discern the difference.

hackenslash · **#17** by **hackenslash** » Jan 18, 2012 12:17 pm

MacIver wrote:
hackenslash wrote:
klazmon wrote:Multiple/parallel universes is nonsense term. It is a logical contradiction of the meaning of the word universe, namely 'all that exists'.

Whilst this is true, the meaning of words change. Yes, the word "universe" literally means everything but it's not inconceivable that it will come to mean our current observable universe while the term existence will mean all that exists. Isn't it?

To address the OP the thing that always annoyed me about programmes like Sliders is that if the Many Worlds interpretation is correct and a molecule fulfils every possible destiny then there would be an infinite number of realities. If this is the case there would be an infinite number of universes that would be identical to ours, or near enough to identical that it would be impossible to discern the difference.

I've discussed this at length. It leads to equivocation and is misleading.

http://www.rationalskepticism.org/creat ... ml#p926095

cavarka9 · **#18** by **cavarka9** » Jan 18, 2012 12:18 pm

klazmon wrote:
cavarka9 wrote:
klazmon wrote:Multiple/parallel universes is nonsense term. It is a logical contradiction of the meaning of the word universe, namely 'all that exists'.

There must be a difference between our verse and others, so universe could be good enough to explain our verse, it is huge by the way, Also, parallel universes is apt because they are different solutions, different possibilities of what we could have been.

How else can we explain our clones?.

It's a wrong usage of the term universe which leads to equivocation. What is really meant is that the universe has more than four dimensions.

It is not about what is meant, it is about speaking in a manner that one instantly grasps the idea of multiplicity of possible states of existence.

cavarka9 · **#19** by **cavarka9** » Jan 18, 2012 12:28 pm

hackenslash wrote:
MacIver wrote:
hackenslash wrote:
klazmon wrote:Multiple/parallel universes is nonsense term. It is a logical contradiction of the meaning of the word universe, namely 'all that exists'.

Whilst this is true, the meaning of words change. Yes, the word "universe" literally means everything but it's not inconceivable that it will come to mean our current observable universe while the term existence will mean all that exists. Isn't it?

To address the OP the thing that always annoyed me about programmes like Sliders is that if the Many Worlds interpretation is correct and a molecule fulfils every possible destiny then there would be an infinite number of realities. If this is the case there would be an infinite number of universes that would be identical to ours, or near enough to identical that it would be impossible to discern the difference.

I've discussed this at length. It leads to equivocation and is misleading.

http://www.rationalskepticism.org/creat ... ml#p926095

meaning of the words change with time and in this case only reflects accurately the change in our view of what we considered to be the only universe. Which is impossible to distinguish if we keep using the same term universe.

Also, one has to clearly and in as short way possible be able to explain/inform the possible existence of the other verses much like our own, So the term universe neither reflects the fundamental change in our view and the terms multiverse or parallel universes in the shortest possible manner informs more meaning than the simple term Universe.

Hence the term Multiverse and parallel universe delivers more information than the term Universe.

hackenslash · **#20** by **hackenslash** » Jan 18, 2012 12:30 pm

Incidentally, those solutions that propose other cosmic expansions take various forms. Klaz has hinted at one of them, in his statement that it means that the universe has more than four dimensions. In these models, there are other extended spatial dimensions, but they are separated from our extended spatial dimensions by additional spatial dimensions that are curled up. This is the core of the 'brane-worlds' model, as so often presented eloquently by Calilasseia, such as here.

This idea is, in principle, testable, and I detail one such test here.

Indeed, the Inflationary cosmology of Alan Guth has similar ideas, in that he posits the instantiation of other cosmic expansions. Indeed, it could well be that, when we understand black holes a good deal better than we do now, that they constitute areas where our extended spatial dimensions collapse here and extend into other dimensions, constituting what he calls 'bubble universes' (with all due caveats regarding the use of the word detailed in the post linked to in my last post).