 Other modifications of the counterfactual test have also been adopted in order to avoid problems for the test existing because of the overdetermination cases. One of these is the “fine-grained effect” approach of the Commentary to the Model Penal Code. On this test, one does not ask whether a harm of a certain type would have occurred but for the defendant’s act; rather, one asks whether the particular harm that actually occurred would have occurred in the exact way that it did, in the absence of the defendant’s act. So in the concurrent cause case of the two independently sufficient fires that join to burn down the victim’s house, we do not ask, 