I studied German at school. I lived in Berlin for two years and had a German girlfriend for five years, so I don't find speaking German particularly difficult. Singing was slightly more difficult. ↗
Briefly speaking, our conclusion is that stochastic volatility does not make a huge difference as far as the pricing is concerned if you get the average volatility right. It makes a big difference as far as hedging is concerned. ↗
Being a press secretary is like learning to type: You're hunting and pecking for a while and then you find yourself doing the touch system and don't realize it. You're speaking for the president without ever having to go to him. ↗