Comment by Alexey_Nigin

In my opinion, getting used to living in small space is the simplest thing about surviving on Mars. It is much more difficult to maintain a steady supply of oxygen, water, food, and energy. Also, there is always a possibility that something important will suddenly break down and the colonists will need to repair it using only what they have at hand. I would be much more impressed if they tried to test how humans and current technology cope with these hard tasks.