I thought it was a play on Kafka's quote: "The crows assert that a single crow could destroy the heavens. This is certainly true, but it proves nothing against

I thought it was a play on Kafka's quote: "The crows assert that a single crow could destroy the heavens. This is certainly true, but it proves nothing against the heavens, because heaven means precisely: the impossibility of crows" I'm still not sure I am wrong.