On 18 Mai, 23:27, "N:dlzc D:aol T:com \(dlzc\)" wrote:
No, anti-matter gravitates normally. But if there are
gravitons...

I don't associate gravity with gravitons, but rather spacetime with a
kind of substance that is contracted by gravity, and according to this
view, anti-gravity would simply be "stretching" of spacetime, rather
than "contraction" of spacetime.