So they sailed west into the wind, day after day, talking or not talking. Many times they came back to what it might mean to be brown. “Perhaps the combination should be called blue,” Ann said one evening, looking over the side at the water. “Brown isn’t very attractive, and it reeks of compromise. Maybe we should be thinking of something entirely new.”

“Maybe we should.”

At night after dinner, and some time looking at the stars swimming over the sloppy sea surface, they said good night, and Sax retired to the starboard hull cabin, Ann to the port; and the AI sailed them slowly through the night, dodging the occasional icebergs that began to appear at this latitude, pushed into the gulf from the North Sea. It was quite pleasant.

One morning Sax woke early, stirred by a strong swell under the hull, which pitched his narrow bed up and down in a way that his dreaming mind had interpreted as a giant pendulum, swinging them this way and that. He dressed with some difficulty and went abovedeck, and Ann, standing at the shrouds, called out, “It seems the groundswell and the windchop are in a positive interference pattern.”

“Are they!” He tried to join her, and was slammed down into a cockpit seat by a sudden rise of the boat. “Ah!”