When a factory robot governed by a generative AI model swings an arm toward a target, its path can respond to environmental conditions. It may not hit a person. The same constraint appears in other less dramatic applications that fail in the same way. An edited portrait may change the light or the expression; it may not become someone else. A simulated physical field may take an unexpected shape; it may not leave the envelope the equipment was designed for. In each case, the generator is fre