Most prompt injection detection methods are reactive, meaning something crosses a threshold and gets blocked. This threshold serves as a signal. We have been working on a proactive approach. In our framework, each conversation has a position τ on a statistical manifold. When τ drops below the stability threshold τ* = √(3/2) ≈ 1.2247—derived from the Landauer limit—the session enters adversarial territory and is blocked. Additionally, there is a second-order quantity from the same framew...