Is the author telling his readers to be optimistic since optimism has a weird habit of paying off? I am not sure. Reading this book is like eating fast food. Tastes good while it lasts, but provides no real nourishment.
In short, i am disappointed with this book. Borrow and read, if you have to or read it on the net as Vanity Fair articles. but don't buy it. Hint: The chapters are all available online, if you search for it.