ABSTRACT
Theory has other ways of invading observation besides tainting the words the observations are couched in. There is the psychological approach, a theory affecting the observer so that she sees (in the most fundamental way we understand this verb) things differently after adopting it. Kuhn, in particular, sometimes seems to go this way by denying the existence of regularities verifiable through the senses. Rather, gestalt shifts in perception allow one to “see” regularities where one did not see them before. And so, “the proponents of competing paradigms practice their trades in different worlds.”1
