Penrose's Singularity Theorem for Black Holes Doesn't Actually Apply in the Real World

Brent Meeker: Roy Kerr says that Penrose's Singularity theorem for black holes doesn't actually apply in the real world. He asks if there are any solutions, even computational ones, for collapse of matter into a spinning black hole and do they treat the matter quantum mechanically? David Wheeler: I think we're going to get better understanding by really, really understanding the cases we understand first, and then expanding that slowly to include things we don't understand.