NancyLebovitz comments on Open thread, 11-17 March 2014 - Less Wrong Discussion
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I would like to see evidence for (1) which goes beyond "future is uncertain and large-impact events are important".
(2) is just part of the definition of what a black swan is.
(3a) is Taleb's idea of antifragility. I am not sure it's practical. For any system that you can build I can imagine an improbable event which will smash it.
As to (3b) Taleb ran a hedge fund for a while, if I recall correctly. It did badly. Taleb doesn't like to mention it.
(3c) is just good risk management and again, see (3a). I don't know what are the practical suggestions beyond diversification. Hedging against disaster (typically by buying volatility or selling short) implies losses if the disaster does not happen.
I think anti-fragility makes sense if you think of it as existing over a range of stressors rather than being an absolute quality.