Annoyingly, the title is actually "Why We Know Whether a Swallow Is Frightened in a Storm [Excerpt]" - key being, why/how we know, and not actually answering th

Annoyingly, the title is actually "Why We Know Whether a Swallow Is Frightened in a Storm [Excerpt]" - key being, why/how we know, and not actually answering the question posed or not. In fact "Swallow", "Frightened" and "Storm" only ever occur in the title.