Penrose's theorem does not simply insert infinity into an equation and call it a place. Under stated conditions, it establishes geodesic incompleteness: some causal paths through classical spacetime cannot be continued indefinitely. Curvature may diverge in familiar solutions, but that is not the theorem's entire content.

The result marks a limit of general relativity's description, not a licence to declare that every physical law has vanished. A successful quantum theory of gravity may change the picture, but no experimentally established theory yet describes the black-hole interior all the way through that limit. The locked door is a metaphor for where our present map stops.

A black hole is not a solid object. It is a region whose causal structure prevents signals from escaping beyond its horizon. Penrose's theorem says that, once a trapped surface forms under stated conditions, classical spacetime contains causal paths that cannot be extended indefinitely.

That is a precise sign of incompleteness, not a detailed portrait of an infinite-density object. General relativity reaches a boundary and a quantum theory of gravity is expected to be needed beyond it.

Extrapolating classical general relativity backward points toward an early-universe singular boundary; that does not mean the Big Bang was an object like a black-hole centre. A future Big Crunch, a Big Rip, continued expansion, and cyclic models are different proposals with different assumptions. No theorem here makes recurrence inevitable.

The black-hole information paradox is another question again. Hawking's semiclassical calculation predicts thermal radiation, creating a tension between evaporation and quantum evolution. Later work has recovered a Page-like information curve in important idealized gravitational models, but that is not the same as watching information — still less a person's memories — leak from a realistic astrophysical black hole.

The image of an ending folded into a beginning can remain. It belongs here as a cosmological possibility and an old human intuition, not as the mechanism Penrose proved. Archive 007 can close on a circle drawn in possibility rather than certainty.