Integration by Constraints: How Divergent Traditions Can Share Epistemic Ground

Abstract: This essay makes explicit the method that governs the Return to Consciousness project: integration by constraints rather than by beliefs. Instead of asking which worldview is correct, constraint-based reasoning asks what any adequate account must explain — what conditions an explanation must satisfy regardless of its ontological commitments. The essay defines what constraints are, how they differ from beliefs, why they are discovered rather than chosen, and establishes four criteria for constraint-candidacy: robustness across methods, recurrence across contexts, resistance to eliminative explanation, and cost of exclusion. It distinguishes phenomenological regularities (constraint candidates) from metaphysical interpretations (not constraints) — a distinction the project relies on throughout. The central claim: constraint-based reasoning is the only known method that permits genuine pluralism without collapsing into relativism, because it subjects all frameworks to the same discipline without requiring them to share assumptions. Part of the Return to Consciousness research program — 22 philosophical essays exploring consciousness-first metaphysics. Full project: https://brunoton.github.io/return-to-consciousness/