So it persists, for many of us, hunger channeled into some internal circuitry of longing, routed this way and that, emerging in a thousand different forms. The diet form, the romance form, the addiction form, the overriding hunger for this purchase or that job, this relationship or that one. Hunger may be insatiable by nature, it may be fathomless, but our will to fill it, our often blind tenacity in the face of it, can be extraordinary.