Le 21-juil.-05, à 08:33, George Levy a écrit :
> Hal Finney wrote:
>
>> Physicist Max Tegmark has an interesting discussion on the
>> physics of a universe with more than one time dimension at
>> http://space.mit.edu/home/tegmark/dimensions.html , specifically
>> http://space.mit.edu/home/tegmark/dimensions.pdf .
>
> Wouldn't it be true that in the manyworld, every quantum branchings
> that is decoupled from other quantum branchings would in effect define
> its own time dimension? The number of decoupled branchings contained
> by the observable universe is very large. Linear time is only an
> illusion due to our limited perspective of the branching/merging
> network that our consciousness traverses.
I think so. And Tegmark paper is indeed interesting.
> While our consciousness may spread over (experience) several OMs or
> nodes in that network, it can only perceive a single path through the
> network.
Comp entails by itself that we should be able to perceive, in some
indirect way, the presence of the many bifurcating or differentiating
orthogonal path by looking sufficiently close to our probable
neighborhood. But then this is confirmed by the very existence of the
MW "interpretation" of the quantum theory.
Are there reason to believe that (physical, or local) time could have a
scale invariant fractal dimension (between 1 and 2, bigger?) ? Does it
make sense ?
I guess we must wait progress in string theory, or loop gravity, or
even comp (!) to solve a so difficult question ...
Bruno
http://iridia.ulb.ac.be/~marchal/
Received on Thu Jul 21 2005 - 08:35:56 PDT