# FAQ ## Why add semantic QA? Because a pack can be structurally valid and still be awkward or misleading as a learning domain. ## How does this help with the activation-energy problem? It catches likely high-level issues earlier, so users do not have to discover them only after they have already committed to review or study. ## Does semantic QA prove that a pack is good? No. It is a heuristic curation aid. ## What kinds of problems can it flag? Examples: - duplicate or near-duplicate concepts - over-broad concepts - abrupt stage transitions - weak prerequisite structure - descriptions that are too similar to each other