Black Hole Hunting

The fun thing about this degree of spacetime distortion is that the topology of these things is demented: from some reference frames (not those outside the hole, obviously), the spacetime inside a black hole's event horizon expands constantly. *Fast*. Ludicrously fast.

It's a bit hard to find papers that describe this in comprehensible fashion to a layman, but they usually say things things like every (ridiculously tiny space interval) inflates e-fold times per (ridiculously tiny time interval) for the entire lifetime of the hole. When I say ridiculously tiny, I mean bigger than the Planck scale but not by much. So the inside of a black hole of any age is going to be an *immense* region, likely vastly bigger than the entire observable universe for almost any hole of reasonable age, and growing more immense all the time -- not that you can ever tell because anyone who can tell is on a one-way trip and cannot communicate outwards... and probably spaghettified as well.