 The question now is: what makes the second-order phenomenon a bona fide objectivity, in contrast to the first-order phenomenon? Whereas the first-order phenomena constitute private, lived subjectivity, not open to prediction or even adequate description, Natorp’s answer is that the second-order object is constructed in accordance with laws of thinking, which as laws are in their very nature objective, i.e., universally valid for any thinker. Therefore objects (Gegenstände) lawfully determined will in principle be rationally transparent to any other thinker, i.e., “objective” (objektiv, gegenständlich). Any such lawful objectivation or object-formation just is knowledge or science, in the sense of being objectively thinkable. These laws of constitution are in turn hierarchically arranged: the highest, most general laws are those governing all possible thinking, and thus the generation of all experience. These are followed by mathematics, and by all the mathematically “exact” sciences. As was shown in  Section 3,  Natorp conceives these laws (Ge-setze) as essentially “hypothetical”, that is, as categorial posits. With the apparent exception of the basic logical laws (e.g., the indispensable “law of laws”), all such laws are in principle revisable (which is chiefly why the determination of objectivities must be conceived as asymptotic) (Natorp 1887: 274; 276–277).