 Instead one might appeal to broadly methodological factors to break the underdetermination. Thus it has been argued that the package of objects-as-non-individuals meshes better with quantum field theory (QFT) where, it is claimed, talk of individuals is avoided from the word go (Post 1963; Redhead and Teller 1991 and 1992; Teller 1995). The central argument for this claim focuses on the core understanding that objects may indeed be regarded as individuals in quantum physics but as such are subject to restrictions on the sets of states they may occupy. The states that are inaccessible to the particles of a particular kind, such as electrons say, can be taken as corresponding to just so much ‘surplus structure’. In particular, if the view of particles as individuals is adopted, then it is entirely mysterious as to why a particular sub-set of these inaccessible, surplus states, namely those that are non-symmetric, are not actually realised.  Applying the general methodological principle that a theory which does not contain such surplus structure is to be preferred over one that does, Redhead and Teller conclude that we have grounds for preferring the non-individuals package and the mystery of the inaccessible states simply does not arise (Redhead and Teller 1991 and 1992).