In general a central charge of am abelian YM gauge field has a field rule ~
1/r^{n-1} in n spatial dimensions. This is important with AdS_5 with 10 dim
SUGRA if one has YM gauge monopoles in the spacetime. The 11-dim SUGRA with
AdS_4xS^7 is likely more directly associated with the observable universe.
The dS_4 spacetime may have emerged from an AdS_4 as the inflationary
spacetime. The AdS_5 might play a role where a wedge in that spacetime is a
moduli space for quantum gravity. For 10-d SUGRA with AdS_5xS^5, the S^5 is
some internal space for a YM gauge field on the AdS_5.
LC
On Saturday, December 2, 2017 at 8:20:36 PM UTC-6, John Clark wrote:
>
> On Thu, Nov 30, 2017 at 12:21 AM, <[email protected] <javascript:>>
> wrote:
>
> JC> No,
>
> MMI alleges that everything that can happen does happen, in a universe
> with 4 spacial dimension Coulombs law would have a function of 1/ r^3
> , If string theory is right about such a universe not violating the laws
> of logic then that universe can happen. and if that universe can happen
> then
> MWI
> says it does happen.
> And such a universe would exist in the Eternal Inflation
> multiverse
> too.>
>
>
>
> > *But that's NOT what MMI alleges.*
>
>
> *Bullshit. *
>
>
> *> That's essentially what Tegmark claims,*
>
>
> I*'ve read every one *
> *of Max Tegmark's books. Have you? Tegmark is a well known many worlds
> advocate and thinks it is true; he thinks that everything that does not
> violate the laws of physics actually happens and I think he's probably
> right about that. But Tegmark goes further than that, he thinks everything
> that does not violate the laws of logic or mathematics does happen, and I'm
> much more skeptical about that.*
>
>
> *FOR Coulombs law to have a function of 1/ r^3 all you'd need is a
> universe with 4 spacial dimensions, and If the string theorists are right
> (a big if) then a universe with 4 spacial dimensions is physically
> possible, in fact acording to them 10 physical spacial dimension is
> logically NECESSARY.*
>
> *String theory multiverse and many world multiverse having nothing to
> do with each other my ass! Is it really your contention that string theory
> is OK with a universe with 10 spacial dimensions and one time dimension but
> not OK with a universe like this one except that my coin came out heads
> instead of tails?? *
>
> * > but the Many Worlds of MWI have the SAME defining parameters as our
> universe*
>
>
> *There must be some physical principles that are true in every world in
> the Everett multiverse, but what are they? Does the gravitational constant
> have to have the same value in every universe that it has here, is the Fine
> Structure Constant a pure number very close to 1/137 everywhere? I don't
> know. I'm very confident the second law of thermodynamics is true
> everywhere, I'm reasonably confident the conservation of electrical charge
> is true everywhere, but I'm less sure of the conservation of mass energy or
> angular momentum. From a multiverse point of view some of the things that
> seem absolutely fundamental to us may be be more like the number planets in
> our solar system and have nothing to do with anything fundamental. *
>
> *> since OUR universe is claimed to be reproduced EXACTLY,*
>
>
> *If you put a gun to my head I couldn't say what you were trying to say
> by that.*
>
>
> *> except for the measurements realized in [...]*
>
> *Forget measurement! Measurement has nothing to do with the MWI, in fact
> that is the one and only reason I am a Many Worlds fan, unlike the other
> quantum interpretations it doesn't have to explain what a measurement is,
> or a observation, or get mired in pointless consciousness debates. *
>
> > Of course, if you set up a situation in which a quantum event is
> amplified to give a difference in macroscopic outcomes, such as in
> Schrödinger's cat, then you can say that the macroscopic uncertainty has a
> quantum origin. But the majority of quantum events are not amplified in
> this way.
>
>
> *So you really do think reality can be neatly divided between quantum and
> non-quantum events, I have *
> ...
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