Hey man, any thinking is good thinking in my opinion. Your theory isn't bad, it all has to start somewhere. In my opinion your right. I am in the same position as you however, I am no scientist, just a kid with huge ambitions about knowledge. I think that there is negative mass in black holes attracting mass, but black holes aren't immortal, and will end once equilibrium of mass is equated. i think it's relatively ridiculous to postulate any factual theories on black holes, since we can't get close to them, and we aren't close to any anyways-- if we were we'd die. i think? So ya. I am sure others have their opinions too, but im expressing mine, as that is what you wanted