Most scientists see the "event horizon" of a black hole is the very last point at which a light signal can still escape to the external universe. The physics theories we currently have all seem to break down when trying to understand so called singularities.
Here’s my 2 pence worth. I think: Spacetime singularities are not tiny but are also massive, I think of them as infinite. (Prefer to call them both immeasurable).
I do not accept that the speed of light is the upper most limit in our universe.
We need a new kind of physics law which allows something to be both singular and infinite at the same time.
Equations are taken to be a fundamental description of spacetime itself, I am confronting the question of how singularities can be interpreted, general relativity characterizes gravity by the curvature of spacetime but there are limits in classical theory.
We need to allow for a conflict in physics law. It would be beneficial to be open to a contradiction in terms.
Because we cannot understand something does not mean it does not exist.
To illustrate my theory, take a pencil and look at the end, it is to represent a point of singularity. Now turn the pencil so you see a line, this is to represent an infinite horizon.
I think that black holes are universal engines, roaming around at the middle of each galaxy. The mass that is sucked (seemingly inescapably inwards to the middle of the blackhole), I think is also taken out to the infinite or immeasurable situation that is the creation/boundaries of the universe.
Let’s call this idea “singular infinite interference”.
For more inspiration go read: http://en.wikipedia.org/wiki/Interference
And think about event horizons being on the surface of water and at the sound barrier.