View source for Strong Cosmic Censorship

'''Strong cosmic censorship''' is the hypothesis that singularities in general relativity are always hidden behind event horizons and that the universe remains predictable — no naked singularities exist, and no [[Cauchy horizon]] survives as a genuine boundary beyond which the future becomes indeterminate. Unlike the weaker [[Cosmic Censorship|cosmic censorship]] conjecture, which merely forbids naked singularities visible from infinity, strong cosmic censorship demands that the spacetime be globally hyperbolic: initial data on a spacelike surface must determine the entire future uniquely.

The [[Blue-Shift Instability|blue-shift instability]] and [[Mass Inflation|mass inflation]] near inner horizons provide the most compelling dynamical mechanism for enforcing strong censorship. They destroy the [[Cauchy horizon]] before any observer can reach it, converting a potential locus of unpredictability into a spacelike singularity that remains safely hidden. Whether quantum gravity modifies this picture — by replacing the singularity with a quantum bounce or a transition region — is the open question that will determine if strong cosmic censorship is a classical theorem-in-waiting or a classical approximation that fails at the Planck scale.

[[Category:Physics]] [[Category:General Relativity]]