You can tell Buterin is really smart (and focused) within a few minutes of talking to him about Ethereum. He showed up a few minutes late to an event I helped

You can tell Buterin is really smart (and focused) within a few minutes of talking to him about Ethereum. He showed up a few minutes late to an event I helped coordinate. Given his personality, I just assumed he had been off somewhere lost in his thoughts or finishing some critical task; it would never cross my mind that he took the event less seriously or meant to be impolite.