AGNOIOLOGY — [Noun] The study of that which cannot be known, or the philosophical examination of ignorance. From Ancient Greek ἄγνοια (ágnoia, "ignorance, unawareness") + -ology ("study of"), from -o- + -logy ("knowledge"). Coined by James Frederick Ferrier to name the void where knowledge fails. Unlike "epistemology" (which maps the terrain of the knowable) or "agnotology" (which dissects manufactured doubt), agnoiology confronts the inherent limits of understanding. It is the silence between stars, the unanswerable question of what lies beyond the edge of the universe, or the shape of a color unseen by human eyes—a discipline that humbles by measuring the immeasurable.