One of the most significant drawbacks in the manning of a human-crewed mission to Mars is the mental strength (or rather lack of) of astronauts in being able to stay sane over extremely protracted times in solitary confinements. After all, can one stay for 4 years in the company of the same boring company? They say that Man is a social animal and he needs friends and company to live. Deprive him of the ability to interact with his fellow kind and be sure that he would hit the loony bin. They fight, they laugh, they cry together, they loathe each other, but they need each other to survive! So say the scientists. A man needs to compete with each other or emulate each other to come out with a newer protocol for the next generation to improve so that they can continue surviving as the most dominant species on the planet. Perhaps, they would remain as the only species as they annihilate other 'less' intelligent ones. Once they have done that, they would step into an intra-specia...
It is all Mimesis