Was thinking. What if graviton particle is nothing more than opposit of matter. Not like antimatter. But non existence like black holes. Gravity is reflection of mass. Is. Is not. Like each galaxy has a black hole near center. And equal and opposite “mass” ( opposites of matter in existence) of the galaxies they are responsible for. Or you could say, from a galaxy is a black hole. Such as spreading of matter expansion of a galaxy = the force or gravity it has due to it being existing. Non existing and existence. Something. We really can’t fathom very well. I look at it this way. Nothingness. But eternal nothing can create a reality with something. But the balance is perpetual existing and non existing forces. Gravity is result or balancing trying pulling to the non existing through a fabric of what makes our reality. With no mass there’s no need for gravity. Since there’s already nothing. Galaxies has a very lot of something therefore it tears the fabric of exsitance into what we observe as black holes. Gravity is nothing more than force of balance through fabric of existence. With matter. Even an atom of hydrogen, has its own gravity (particle exists so has opposite of existence) gravity. I believe mass in high quantities creates an accumulation of gravity. That’s why in a volume of space, is under vacuum. Almost as if everything has a slight tug or force from a distance. Otherwise entering space. There wouldn’t be vacuum. Or would have something. Other than no mass. No gravity. Radio waves and other radiation cannot pass a black hole because even a wave is existing. Therefore unexsist doesn’t pass by. Event horizon is nothing more then the thread hold of existing and non existence. Hard to quantify really But I wonder if memory or the mind can exsist and not exist. Observer and non observer. Like the voice in your head saying wtf right now. Who is he talking to and who is listening. Anyways gravity is reaction to mass. You cannot have gravity without mass. Thats why we cannot create gravity. We cannot create mass. Only manipulate it on reality plane of existence. If we could mimic mass, we could manipulate it to be able to create gravity defying vehicles and such. We can simulate gravity by using momentum forces like centrifugal force. But it’s not the same as gravity. Just thinking out loud We have gravity because we have mass. If you were in space. Still position 5’ from a hammer. Eventually the hammer and you would pull together. The hammer accelerating faster than your heavy ass. But both bodies would eventually make it closer. The world has mass. Gravity we measure by 9.8mps^2. Which by that you can get average density of mass o would guess. Smaller object with higher density of mass can have tremendous gravity.