Does Einstein's theory not disprove the idea that Gravity is a force? Perhaps I am completely misunderstanding the theory, but it seems to explicitly say that what we think of as gravity isn't really a force, but is a by-product of the curvature of space-time (the curvature being a symptom of the displacement caused by an object). Why, then, is it so important to unify Gravity with the other three forces? Is any work being done to expand them to include the effects of the curvature of space-time, or are there any other explanations being cooked up? Disclaimer: I am not a Physics students. I am beginning my studies in Mech. Engineering in the Fall. Currently, I'm learning all of the ideas and concepts of Physics that I possibly can, so tha I'll have the understanding of what the math is telling me by the time the math is given to me.