Re: FTL, but what kind of?
- From: Erik Max Francis <max@xxxxxxxxxxx>
- Date: Wed, 26 Aug 2009 20:14:34 -0700
Johnny1a wrote:
Fancy all this up with handwaving about branes, subspaces, etc, to
taste, and handwave some reason why gravity _isn't_ crossing the bulk
space. (0r is it? Maybe this is part of the explanation for dark
matter gravitation?)
If string theory is right, then it's finite-dimensional and gravity _does_ escape easily from the branes. Of course, that's if you buy anything about string theory, which so far there's not a lot of compelling reason to do.
The key word is 'infinite number'. Since the other universes are
basically like our own, any given other universe you enter, as a
matter of random chance, you'll probably find yourself in
intergalactic space, with nothing of interest within millions of light-
years.
The easier explanation is that the different branes are just as easily affected by gravity, so matter in nearby branes clump in corresponding batches together. But then we'd see their effects, which we don't, so there goes that idea.
--
Erik Max Francis && max@xxxxxxxxxxx && http://www.alcyone.com/max/
San Jose, CA, USA && 37 18 N 121 57 W && AIM/Y!M/Skype erikmaxfrancis
Isn't the best defense always a good attack?
-- Ovid, ca. 8th C.
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