I miss AlphaNumeric! Yes, but he was talking a hybrid interpretation of GR and QM. There are no gravitons in GR... but if you think about it, if anything like a graviton is involved at a quantum level, then they are force carriers and GR and space-time describe the resulting gravitational field... Or the gravitons as force carriers make up the substance or quasi-substance of space-time. Either way gravitation winds fundamentally the result an exchange of momentum.., we normally refer to as force. I tend to think it might not be a bad idea to explore the possibility that gravitation is a local inertial bias in the presence of mass. It would explain the equivalence principle, as more than just a similarity.