1. The problem statement, all variables and given/known data How do we argue that gravity is not a force due to curvature of space-time? 2. Relevant equations I'm new.. I don't even understand the eqn of tensor calculus. 3. The attempt at a solution No force is needed for as massive objects follows the curvature of spacetime with their innate velocity? Just like the earth orbits around the sun because its velocity sustains it in the path of curvature caused by the sun? I'm writing an essay on this. and I need more points to elaborate on curvature. Thanks for all help given.