There have already been submerged submarine patrols lasting over a hundred days.
You'd think that military psychologists would have plenty of studies of people in these situations. Perhaps they are not sharing them.
Veteran of the SSBN sub force here, and I'm kind of surprised that this is considered that big a deal. We've been doing trips in isolation this long since the 60s.
Then again, I suppose the group dynamics for 6 people are slightly different than for 110 people.
''Every gun that is made, every warship launched, every rocket fired signifies, in the final sense, a theft from those who hunger and are not fed, those who are cold and are not clothed. This world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children . . . This is not a way of life at all in any sense. Under the cloud of threatening war, it is humanity hanging from a cross of iron.''--Dwight D. Eisenhower, April 16, 1953, before the American Society of Newspaper Editors
Thus spake the master programmer: "Time for you to leave." -- Geoffrey James, "The Tao of Programming"