As some other reviewers mentioned before, this book doesn't really explain how to "train" your brain for intuition-based "thinking without thinking". In my opinion the reason for this is that the author is so entrench in his believe that intuition always tramps statistical analysis that he does not realize that the only way your brain can use intuition productively is by collecting enormous amount of statistical data. You will never develop right "hunches" by looking at the chess board for 5 seconds like grand masters do UNLESS you play as many games as an average grand master. And then you would have trained your brain for hunches in chess, but it will not help you to have intuition about authenticity of greek statues. I belive book's premise that somehow you can "train" your brain to be intuitive in general and not in a specific field is false.

Also the book fails to mention that while some types of problems lend themselves to hunch-based solutions (simple and static like chess or whether to cross a busy street) others do not (stock market or insurance).

Much more comprehensive (AND consize) analysis of this subject can be found in Michael Mauboussin's "Mauboussin on strategy" letters that he publishes for free on the web on the regular basis.

The intention of this book was never to teach the reader a new way of thinking or to revolutionize the way decisions are made, but rather to teach us about something most of us do everyday without realizing it.

The analysis he offers through the perspectives of research experts, recent current events, and even our perceptions on our most popular beverages/food is eye opening! There are simple decisions being made by our mind far in advance of the rest of our consciousness, yet it shapes how we think food tastes, whether we will like a person or not, or even our thoughts on racism.

I reccomend this book to anyone willing to read a simplified analysis of a very complicated decision making machine (the mind). Even with no prior interest in psychology or social sciences I was intrigued the entire way through, and have been made an instant fan of Malcolm Gladwell!