text: I'm glad that you asked this question because I've actually been thinking about this for a long time.\n\nBlack holes. Well, they're basically infinitly dense matter with a gravitational field so strong that it litterally bends space. This is due to the immense matter that is contained within. How? Well imagine a star's gravity. A baby blackhole would have that star's pulling power and as it absorbs more matter, its gravity field and strength would increase exponentially. \nSimply put, as more and more matter is absorbed, the gravity field is so strong that for normal matter to exist in it, it would be virtually impossible which is why i belive that the matter that has once existed has become a form of raw material so densly packed that at the center of it, matter is becomming energy. \n(matter and energy are exchangeable as dictated by einstein's E=MC2 which dictates that E=Energy and M=Mass of an object times the speed of light SQUARED!!!! I mean holy crap man, thats alotta energy, which btw, states that technically, a suger cube can destroy the earth...anyway...)\nAt the center of a black hole, there is a sphere of EXTREMELY dense matter with (given time of course) the gravitation pull of a whole star system. Thus, in theory, a black hole never ceases to stop pulling in more spacial objects in. A black hole itself,however, would never really increase in size since each time it absorbs light and matter, its gravity would increase thus keeping the size at a constant. \nAt some point however, black holes would suck everything in and eventually, there would be alot of black holes left in the universe and they would eventually suck each other in and eventually become one big black hole with an empty universe. When this stage has been reached, the matter, with its gravitational field so strong, would collapse on itself or it would rip space apart. When it collapses, all the matter sucked in would be released in a form of energy and therefore creating a "Big Bang".