  LePore and Loewer concede that mental properties are screened off by physical properties. But they argue that this more refined test is too demanding, for it would also mean that the physical properties of a mental cause are irrelevant. Note in particular that the decision’s mental properties screen off its physical properties: if the cause had lacked its physical properties yet had still been a decision to turn on the light, it would have caused Gus to flip the switch (ceteris paribus: here a hedged law, which anomalous monism permits, is in play). Screening off thus goes both ways, and since few would want to deny causal relevance to the physical properties, we should not let screening off impugn the significance of mental properties either.