I don't yet know what "gravitational radiation" is but I will soon find out. :)
A black hole emitting "gravitational radiation" seems a very close analogy to "cosmic background radiation"... Are they the same thing essentially? If so, maybe what we think is CBR from the big bang is really...
This might seem a weird question but what the hey...
Do we see CBR on the event horizon of a black hole same as we see on the particle horizon? Or to say in another way is the CBR we see on the particle horizon actually an event horizon dispersed over 14.4 billion light years?
You say the stuff from the star is "hidden" behind a horizon. This seems analogous to stuff hidden beyond the particle horizon. In the case of stuff beyond the particle horizon finite gravity can no longer contribute, yet in the case of stuff below the event horizon finite gravity does...
Specifically, any mass below the event horizon of a black hole falls outside the known universe because of light speed the same as stuff beyond the particle horizon? So the mass of the star creating the singularity would disappear into a singularity surrounded by a event horizon that collects...
Another quick question when you have the time...
If the speed of gravity is limited by the speed of light how can a singularity form? I understand stuff spirals into a black hole but stuff stops at the event horizon, right? In order to penetrate the event horizon gravity would have to act on...
Regarding "other universes", do you consider anything falling beyond the particle horizon to be another universe or do you view everything since the big bang as one continuous universe even though ever larger portions are becoming inaccessible to us?