The incommensurability problem: A critique of phenomenal structuralism
Philosophy and the Mind Sciences November 3, 2025 Miguel Ángel Sebastián
Phenomenal structuralism argues that what makes a conscious experience what it is depends on the relationships among its qualities, not on any intrinsic features of those qualities. This view, while illuminating, creates serious problems for comparing experiences across different people or even within the same person over time. If experiences are individuated only by their relational structure, it becomes doubtful that two people can ever share the same kind of pain, raising ethical concerns. The approach also fails to explain how different sets of qualities could lead to the same discriminations. The paper suggests representationalism as an alternative that might preserve the strengths of phenomenal structuralism without these problematic consequences.