"If one looks at the different problems of the integral calculus which arise naturally when one wishes to go deep into the different parts of physics, it is impossible not to be struck by the analogies existing."

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We know that attention acts as a lightning rod. Merely by concentrating on something one causes endless analogies to collect around it, even penetrate the boundaries of the subject itself: an experience that we call coincidence, serendipity – the terminology is extensive. My experience has been that in these circular travels what is really significant surrounds a central absence, an absence that, paradoxically, is the text being written or to be written.

— Julio Cortazar