| My own hypothesis is that the graviton is a one-sided closed surface with two holes analogous to the Klein's bottle, once get in can't get out but once get out can't get in. So, the anti-graviton is in one parallel universe and the graviton is in our universe. If one graviton moves closer to the gateway between universes then it is becoming more and more like a photon and when it meet the anti-graviton face-to-face then it become completely a photon. But when the graviton moves away from the gateway then it become more and more like a Higgs boson acquiring more and more mass as it moves farther and farther away from the gate of the true vacuum. |