This gives us an argument for (2), the version of No Interpenetration restricted to material objects. (However, (2) conflicts with the possibility of Sanford's interpenetrating blocks, so the argument will be controversial.) But the argument does not give us an argument for No Interpenetration. For it wouldn't follow that it is impossible for there to be disjoint entities of any kind to have overlapping exact locations. Supersubstantivalism, as stated above, leaves open the possibility that ther