Scott at 2015-10-12 23:41:09:
I'll get more into plot tomorrow, but the really big point about this story: Human vs. Nature. Even if set on another planet, The Martian is reminiscent of movies like Cast Away, 127 Hours, and All Is Lost. In each of these movies, it's not just a human, it is a single human. So it's not just a story of survival in the physical sense, it's about the character's psychological survival as well.
For all the talk about the science in this movie, there is an equally strong psychological component at work.