If it weren't for Moore's law changing the playing field continuously, I would have been long gone. The rapid pace of hardware evolution still keeps things fresh for me.
A lot of the work at Oculus has gone into working out better position tracking.
A strong team can take any crazy vision and turn it into reality.
The core of what I do is solve problems, whether that's in graphic engine flow or rockets. I like working on things that are going to have an impact one way or the other.
Rocket science has been mythologized all out of proportion to its true difficulty.
I've said before that I'm a remarkably unsentimental person.