This review is a great read. I'm not convinced that Watney should show any dark moments. I've met and chatted at some length with astronauts, and perhaps Watn

This review is a great read. I'm not convinced that Watney should show any dark moments. I've met and chatted at some length with astronauts, and perhaps Watney as represented is extreme, but I don't find him unacceptably so. Being a Martian Scientist is not the same as being an astronaut, and I wonder if that's a point that's been missed in this otherwise excellent article.