I don't understand why people bash Taleb so much... He is a writer and a former floor trader.. He says alot of interesting stuff.. Dynamic Hedging is a great book. With that being said you can be both long and short volatility.. Yes your net position is going to be either short or long.. I think the more interesting trades to me are long higher degrees of convexity and short lower degrees of convexity.. Taleb talks about convexity effects alot.. I never was sure if his fund was like a vxx type etf of hedge funds with more convexity on vol spikes and less draw on low vol environment.. idk