[Drammach]

But gravity is not a dimension; it's one of the four fundamental forces, the other three being electromagnetism, the strong nuclear force and the weak nuclear force.

Forgive me if I sound incredibly stupid..

Isn't Gravity simply a function of Mass? ( function, for lack of a better word. )

[snarks_when_bored]

General Relativity is our current best theory of gravity, so I'll refer you to my post #47 on this thread.