Mechanism Interferometry: A Causal Calculus to Verify Neural Network Modularity
doodlestein · x · 2026-08-13
A new research project, Mechanism Interferometry, introduces a causal-modularity calculus to verify the internal mechanisms of neural networks. Based on the premise that models are assembled from independently replaceable rules, the method compares two slightly perturbed worlds. By utilizing the exact additivity in log-density-ratio space, it separates nonlinear responses from genuine coupling, offering a novel causal perspective to examine AI black boxes.
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