ok on black holes.....
If gravity truly moves at speed c (speed of light), how does it escape the black hole's event horizon to reach a distant observer (or in the case of cygnus x1, its binary partner), when everything else that moves at c or lower is dragged back? is there an exclusion principle inherent to the gravitational radiation that prevents the black hole from collapsing completely to a point? (ie the white dwarf or neutron stars held up against gravity by the various particle's exclusion principle?)
i dont even know if that makes sense because how could gravity attract itself, however the limiting speed c is non negotiable, soo....... i gotta know