Black swan, the concept which brought him in the spotlight is somewhat valid but it's worth at most a chapter in a risk management book. But he milks the black swan cow to biblical proportions.

Antifragile is so longwinded it's an exercise in attention and patience. I think it's remarkable how he managed to fill so many pages.

In my view, Taleb resides close to Malcolm Gladwell and Seth Godin, the 'thought leaders' experts at rebranding/refactoring common concepts and milking the proverbial cow in publishing, speaking events, etc..

Nevertheless, it behooves us to try to remember that we are susceptible to the "Black Swan effect", the very real tendency to immediately forget that our sacred cows shit the bed.