Everytime I read a comment of the original poster, I have less understanding of the goal here. Put another way, it's becoming clear the original question is rhetorical. He cannot be both (1) truly atheist and (2) looking for an answer to his question. One of those must be false.

A person who is 100% atheist would have little use for an answer to the original question. Likewise, I truly believe in God. So, I have little use for a deep discussion on how atheism will help me in a survival situation. All I have use for is knowing the atheist approach for survival for the sake of getting to know a friend, and that conversation is rather short. I don't need a long discussion of points and counterpoints because, again, I believe in God. So, at the end of the day, the atheist approach is primarily just a piece of trivia in my head. I expect a true atheist to view a faith-based approach in the same manner.