We all know that from the theory of general and special relativity that gravity is just an illusion that a body undergoes when it travels through the fabric of space-time, creating simultaneous depressions, that causes other bodies to be attracted to it.
But, just as a thought experiment, if we compare the force of gravity to one of the other fundamental forces, i.e. the Electro-Magnetic force, we try to think of a kind of a repulsive gravity. My questions it that, could Dark matter, or whatever that is trying to expand our universe be an example of this theory? I mean, could there be negative mass, and I don't means stuff like \(-5 kg\). That's irrelevant.
What I want to ask, is if there's something that does all the work and has the same properties of ordinary mass, but repels? I have heard and watched a couple of vids on this topic, and this really is kind of interesting...(for me, at least! :P).
Please share your comments and reviews to this theory.