Specifically the interaction is: objects with positive inertia being able to 'push' objects with negative inertia. This brings up an interesting question, is g

Specifically the interaction is: objects with positive inertia being able to 'push' objects with negative inertia. This brings up an interesting question, is gravity about exchanging momentum? My mental model of gravity being spacetime curvature would imply no, but that intuition is likely wrong.