What happens at the collision of two black holes

The subject is as abstract as metaphysics
but is is of interest to all of those, like me,
who are interested in what is happening at the utmost corner of the infinite

See the nice video and article:
http://www.sciencenews.org/view/generic/id/37200/title/No_naked_black_holes

Another deep subject of meditation : is the blackness of black holes
related to the dark energy and dark matter which scientist just
discovered that they make
96% of reality ???

Any connection with the Blackish Source of Everything (Krishna in
sanskrit etymology) ?????