 Others will object to the neutral monist interpretation of Nagel’s view, insisting that basic entities that have mental and physical properties cannot count as neutral, given the Neither Sense of  neutrality.[10]  The case for calling it a panpsychism rests on the fact that each fundamental entity has mental features. The case for calling it a dual-aspect theory rests on the fact that each fundamental entity has physical and mental features. And if neutrality is understood in the Both Sense, then this very same fact indicates that we are dealing with a version of neutral monism after all. But if one follows the traditional neutral monists in understanding neutrality in the Neither Sense, and if one follows them further in assuming that the properties of being mental and being physical are properties that can only be possessed by groups of basic entities, not by individual basic entities, then it is advisable to deny that Nagel’s view is a version of neutral monism. Perhaps it is best characterized as a form of the dual-aspect theory, or as a form of property dualism, if aspects are distinguished from properties (see section  8.3  below).