I bought this book After Reading "Thinking Fast and slow" as I got the bug of behavioral economics and decision making under uncertainty. The author Describes His experiments aim Throughout the book jumps to conclusions and recommendations Quickly as if His experiments can be straightforwardly Applied to real life. I very much doubt it. We do not live in a world with easy relationship entre things. Where is the power of context? It is much more complex Than That. We live in an Extremistan (see Tabled book Black Swan) Academics tend to see the world from Their comfortable seat and Provide a biased view on what's going on in real life. Chapter 9 "keeping doors open" is perfect illustration of a recommendation made for all. How can Mr Ariely explain to an entrepreneur or business man to shut doors? Well he can if we live in a world with only Known knows, with simple and straightforward cause-and-effect relationships. The world is full of randomness, closing doors being white means clustering less exposed to positive events. This being white Said, a focus is essential Sometimes focusing goal every time is not an option (I would definitely shut this door though)