Some of the only theories that deal with black holes and stars is that sometimes stars can create black holes by implosion. This theory states that black holes have more to do with stars than originally thought. The Two sided black hole theory states that there are , obviously two sides of a black hole. One side does the pulling in of matter, the other expels it. The expelling side is what we would call a star, due to the fact the side that draws in matter, the other side of the hole has to expel it. In the process of the vacuum the matter is accelerated to a high speed and therefore becomes combustible. Along with matter, light is also drawn inside the hole and expelled to the other side, emmiting the light we would refer to visually as a "star". In general the distance between the two sides could be limitless, one side , the sucking side, could be near us while the other , the expelling side, could be halfway across the universe. Since a black hole could be spherical and sucking in at all sides as well as absorbing light, we could never know what the inside looks like or where it leads to. As far as the life and death of a black hole, sometimes the , sucking side , and the , expelling side, switch places. The idea behind this is when a star implodes on itself it becomes a black hole, thus the concave side (black hole) and the Convex side (star side) switch. The reasoning behind when a star implodes is when the black hole isnt providing the star with enough energy. The death of a black hole is when a star supernovas, the reasoning behind this is when the black hole feeds the star more energy than it can handle.