Subject: Might the force of gravity between matter and anti-matter be repulsive?

     Matter and anti-matter formed in the Big Bang would coagulate out to 
stop the anhialation phase, and anti-gravity would then help drive the 
expanding universe.  This parity in the law of gravitation would also 
serve to prevent large amounts of matter and anti-matter from coming into 
contact.  The coagulation would separate the two into galaxies or clusters 
of galaxies, so that it is extremely unilkely to encounter a macroscopic 
sample of antimatter in a matter galaxy, or vice versa.
     Using the "rubber sheet" analogy, I picture anti-matter bending space 
in the opposite direction from matter, forming peaks instead of wells.
     Since gravity is billions of times weaker than electromagnetism, it 
should be extremely difficult to detect anti-gravity effects on 
magnetically-bottled subatomic particles of anti-matter.

Re: Might the force of gravity between matter and anti-matter be repulsive?