Gravity is not a force, it's a consequence.
Gravity is not a force. Well, not in general relativity. Instead, gravity is a consequence. This black hole here is warping space and time by physically altering it by its ridiculous mass. So, that would suggest that time is a physical thing. It is. So, gravity is the consequence of mass warping and shaping space-time.
In 1919, the Eddington Experiment proved that space and time are warped by the sun. In the experiment, Eddington used a total solar eclipse to measure the gravitational deflection of starlight passing near the Sun. The value of this deflection had been predicted by Albert Einstein in a 1911 paper and was one of the tests proposed for both his 1911 theory of special relativity and his 1915 theory of general relativity.