The Calibration Catastrophe: Dark Energy, Black Holes, and the Evolving Ruler

We demonstrate that cosmic acceleration (dark energy) and black hole singularities are artifacts of an evolving RS cavity. If kL has drifted over cosmic time, particle masses—which depend exponentially on kL—have shifted, contaminating every rung of the cosmic distance ladder. A slow linear drift in kL produces an exponentially amplified calibration error mimicking acceleration. Black hole singularities are cavity collapse artifacts: local brane narrowing causes the reverberation series to diverge at finite real mass. The information paradox dissolves. The Hubble tension is an epoch-dependent calibration mismatch. The vacuum catastrophe (10¹²⁰ discrepancy) resolves if vacuum energy is geometrically suppressed by e^{−4kL}.