The space in the universe is predetermined, that is it was determined when the space began to move in the big bang. So the space that could not contain itself in the predetermined space expanded beyond the limits that the initial limits were imposed so it began to contract under its own weight as it could not inflate beyond a limit. Hence the black holes are formed. It is space-time singularity of a finite universe in which it is difficult to determine the particle as it approaches the infinite conditions .
When infinity is subtracted from infinity the result is mere a wishful number as the universe is finite. So it is super gravity that is a possibility when finite terms appear in the time-space continuum. Black holes as such are the areas of the universe where infinite terms try to cancel each other out in otherwise finite universe.