“Even though people are capable of making decisions in a thorough and methodical way, it appears that most of the time they don't. A growing body of research suggests that people unconsciously use simple rules of thumb or heuristics to navigate the routine complexities of modem life.” In our homes and work places that may not be a problem, but when we take that mindset out into the mountains where the variables can change so quickly, we can find ourselves in serious trouble.