I have to point out that The Martian is not science fiction, because the science in the book is, intentionally, not fictional. Merely having science in your nar

I have to point out that The Martian is not science fiction, because the science in the book is, intentionally, not fictional. Merely having science in your narrative doesn’t make something science fiction, otherwise Greg House would qualify. If I remember right, the only liberty taken w.r.t known understanding in The Martian is with regard to the damage potential of Mars atmospherics. It is certainly educational though, and to me, The Martian is rather in the category of “competence porn”