Field notes for trivia prep
50 Jeopardy! category clusters, ranked by how deep you can actually study them. Pick a study window to see what dominated the board then, drill into its most recurring entities, and pull live facts from Wikipedia. A type's recurring entities count is how many distinct people, places & things come up 5+ times across its clues and answers — a rough, exploratory signal of how studyable a type is, not a precise payoff score.