Every person operates from an axiom stack—a layered architecture of bedrock presuppositions, inquiry algorithms, and worldview outputs. This chapter makes that invisible structure visible, lays out three major examples (Scientific-Existentialist, Scriptural-Theist, and Dharmic/Taoist), and introduces the concepts of entailment costs, incommensurability, and sovereign choice. The foundation for understanding why intelligent people looking at the same world can reach radically

Methodological naturalism is the most justified inquiry principle available—but it is a principle, not a presupposition, and not a metaphysical claim. This chapter explains exactly what it says, what it doesn't say, why it works, and where it reaches its limits. The single most important distinction: methodological vs. metaphysical naturalism.

Not all foundations are equal. This chapter introduces the three-tier taxonomy at the heart of Foundations of Reason: axioms (what you cannot think without), presuppositions (what you cannot live without), and principles (what works well enough to earn its place). The grammar that structures everything that follows.