 Moreover, if a body's motion in a spatial field, including that of the simplest bodies, is just a change of location at which a given degree of power is instantiated, then there seems to be no means of explaining why a particular degree of power would necessarily change locations — move — continuously, as opposed to discontinuously. But surely it is in the nature of bodies as explananda here that they are spatiotemporally continuous. Furthermore, if what individuates “quanta of power” are just their degrees of intensity — their degrees of power to persevere — then anywhere that degree is instantiated, that very same body should be. But this would be consistent with the unlikely idea of discrete, discontinuous motion of a body, and indeed with the bi-location of bodies, that is, with the idea that a single body might be wholly present in each of multiple regions. Assuming that Spinoza would not accept these possibilities, the theory of “motion and rest” as signifying spatial regions of power distinguished by degrees of power fails to account for signal characteristics of body. It is thus doubtful that the inadequacy of Descartes' identification of body with extension can be overcome simply by predicating regions of extension with different degrees of “power”.