Two of these things become degenerate when 2 times r-sub-Q equals r-sub-s in a solution that accounts for charge. The number of Planck areas that can fit on these things is proportional to the entropy allowed (-5[1])by the Beckenstein bound. (-5[1])Constructs analogous to these things separate causally unconnected regions of space (10[1])that paradoxically appear homogeneous. Encoding of physical states on these things could resolve the information paradox, according to the (-5[1])holographic (10[2])principle. (10[1])"Naked" objects not inside these things are disallowed by the cosmic censorship (10[1])hypothesis. Separation of virtual photon pairs (10[1])across these boundaries is a common inaccurate explanation for evaporation via Hawking radiation. The ergosphere is directly outside, for 10 points, what boundary marking the "point of no return" beyond which light (10[1])can't escape a black hole? (10[1])■END■ (10[1])