Gravitational Collapse and Space-Time Singularities

Penrose’s 1965 Gravitational Collapse and Space-Time Singularities, published in Physical Review Letters, is one of the program’s working technical references. Cited in Book V (Categorical Macrocosm), Part 6, Chapter The Big Bang as Regime: Same Laws, Extreme Parameters, where the program draws on it in the context of “The Penrose–Hawking singularity theorems elevate this observation to a general result: under the strong energy condition and suitable causality assumptions, at least one….”