 Qualitative Supervenience  will of course not be acceptable to those who deny that there are any perfectly natural properties. Some specific putative counterexamples to Qualitative Supervenience have also been offered. For example, Dasgupta  (2013)  suggests that is possible for the same objects to instantiate the same fundamental properties even while everything is twice as massive as it in fact is. Since Dasgupta also seems to assume that properties like being one kilogram in mass to be qualitative, these possibilities seem to involve a failure of  Qualitative Supervenience.[29] 