The deterioration of empiricist metatheory raises the critical question of whether psychological theorizing is a progressive activity. By considering psychological theories as performative rather than descriptive, a new conception of progress is invited. Theories enable scientists, as social collectives, to carry out a range of activities. During a stabilization phase theories solidify certain ranges of actions within the community. During a transformational stage, they undermine the taken for granted, and open vistas to new forms of activity - both within science and society.