Philanthropist. Founder and former CEO of Microsoft.
I am in the camp that is concerned about super intelligence. First the machines will do a lot of jobs for us and not be super intelligent...A few decades after that though the intelligence is strong enough to be a concern.
Before the prospect of an intelligence explosion, we humans are like small children playing with a bomb [...] We have little idea when the detonation will occur, though if we hold the device to our ear we can hear a faint ticking sound