 While Langton initially explains her view in a way that suggests an identity reading, she in fact opts for a non-identity reading, for good reason. Firstly, on the identity reading Kant would have to identify subjects of predication in empirical judgments with substances. This is problematic because it would bring substances into the world of space and time. For instance, if I can make a judgment about this table, then it would be a judgment about the extrinsic properties of this table, and this table would be a substance with intrinsic properties (although being a table would, presumably, not be one of them). Alternately, if we identify the table as a collection of extrinsic properties of substances, then we can go on to predicate further properties of the table, without having to identify the substance or substances of which the table is ultimately  predicated.[60]