One of my own stray childhood fears had been to wonder what a whale might feel like had it been born and bred in captivity, then released into the wild-into its ancestral sea-its limited world instantly blowing up when cast into the unknowable depths, seeing strange fish and tasting new waters, not even having a concept of depth, not knowing the language of any whale pods it might meet. It was my fear of a world that would expand suddenly, violently, and without rules or laws: bubbles and seaweed and storms and frightening volumes of dark blue that never end.