In this book, Col. Chris writes about how astronauts are trained. Astronauts are trained to sweat over small stuff. The small stuff can blow out of proportions and become lethal. For example, the Space Shuttle Columbia disaster was caused by a cracked O-ring and a dislodged piece of foam.

Astronauts are trained to distinguish fear from danger. The training is built around all the scenarios that can be fatal. Through repetitive simulations, they are taught to think calmly, follow the steps and tackle the situation.