Correct, in GR gravity is not a force between masses but an effect of the warping of space and time in the presence of mass. That said, Using the concept of "Gravity" as a "force" is very useful in the special or limited cases. In fact it may be the only way to model some problems where one can't find an exact solution to the EFEs. The concept is invaluable as a tool for visualization. Most of us cannot visualize the non-euclidean impacts of the Ricci tensor or the Weyl terms.
I should warn than in QM the notion of "force" is based on operators and not variables and the stricter Newtonian definition is going to run into problems.
Comments
Correct, in GR gravity is not a force between masses but an effect of the warping of space and time in the presence of mass. That said, Using the concept of "Gravity" as a "force" is very useful in the special or limited cases. In fact it may be the only way to model some problems where one can't find an exact solution to the EFEs. The concept is invaluable as a tool for visualization. Most of us cannot visualize the non-euclidean impacts of the Ricci tensor or the Weyl terms.
I should warn than in QM the notion of "force" is based on operators and not variables and the stricter Newtonian definition is going to run into problems.