Fred Pine proposes reconceptualizing psychoanalysis as the study of the workings of the mind rather than as pluralism or incompatible theories. He argues that contributions seen as pluralism have actually filled gaps in areas Freud excluded, like object relations, self, preoedipal development, and the impact of the analyst. These developments represent an increased knowledge of the mind rather than contradictory theories. However, historical and group factors have led psychoanalysis to fragment into sect-like subgroups that view each other's theories as oppositional rather than additive.