One strategy to avoid this difficulty (of losing the physical content of a scientific theory due to the use of modal operators) is to employ an actuality operator. By properly placing this operator within the scope of the modal operators, it is possible to undo the nominalization of the physical content in question (Friedman 2005). Without the introduction of the actuality operator, or some related maneuver, it is unclear that the modal structuralist would be in a position to preserve the physical content of the scientific theory in question.