What 'unexpected' everyone is talking about? Everyone has been pointing at US imbalances like low saving rate leading to dangerous dependence on consumption for growth (and consumers in turn depending on low rates to borrow) for 5 years at least.
What's unexpected is that it took so long to unravel.
As you might guess, this is one of my favorite books! One of the things I find so fascinating is how, as in Fooled By Randomness, the concepts he outlines are readily applicable to so many spheres of activity in the modern world. There are black swans happening and about to happen in every field where modern technology has accelerated communication and is changing the way things are done.
What's unexpected is that it took so long to unravel.