Last week, "Inspiration Mars" announced its search for a male and female couple to do a Mars flyby mission, requiring the pair to spend 501 days alone together. Sailors/adventurers Deborah Shapiro and Rolf Bjelke have some experience doing just that, at least terrestrially. More than twenty years ago, Shapiro and Bielke had 9 months of alone time on the Antarctic Peninsula. By choice. Shapiro wrote about their experience in a book called Time On Ice. Over at BBC News, Shapiro answers the question: "Why didn't you two kill each other?"
One has to be able to give the other person mental elbow room. During our winter, when a person settled into the sofa in the salon with a book and started reading, he or she was not interrupted.
Keeping quiet when the person is close enough to practically read one's thoughts, is a matter of self-discipline, fuelled by caring.
The only exception to our silence rule was for boat-related safety issues. The boat, for obvious reasons of survival, always came first.