Highly, highly recommend this book to anyone who hasn't taken the time yet. Not all that revolutionary for anyone firmly grounded in the real ins and outs of probability, but surprisingly revolutionary for those who know just enough probability to be dangerous, so to speak.
Given the audience on HN I recommend the very readable "Misbehavior of Markets" by Mandelbrot. Everything worth reading in Taleb's book is a dumbed down rehash of Mandelbrot's ideas.
"Not all that revolutionary for anyone firmly grounded in the real ins and outs of probability"
The fact that those familiar with the subject matter do not think this is revolutionary is exactly the problem Taleb is pointing to. He is calling it "the great intellectual fraud" for a reason. Domain experts obviously do not believe "intellectual fraud" and "bell curve" should be in the same sentence