I heard Vitalik has been brushing up on his Chinese. 
 
As a middle aged man, I don't consider myself able to ever be fluent, but do you guys think that if one wishes to be involved in cryptocurrency they should at least learn some basics? (perhaps merely as a sign of respect, should one visit China eventually).  I picked up some Russian basics over the last ten years, and that was difficult enough - the thought of starting from scratch with a new language is daunting, but life is long... and a native English speaker who could also speak Russian and Chinese would be in a lucrative position, regardless of any other abilities.