>> "How he had time to work a director-level job at , develop a new programming language, oversee/participate in the OSS work for LLVM/Clang/Swift"
Weren't all these things part of his job at Apple? Things he could reasonably do during working hours? If so the question is how did he have a job + spare time which is easier to answer.
He was a director, so a lot of his job was coordinating the entire development tools team. He fit in some amount of development during the day, and did a lot of nights and weekends (or at least that's what I've been gathering from the interview so far; only part way through, looking forward to the commute home).
Weren't all these things part of his job at Apple? Things he could reasonably do during working hours? If so the question is how did he have a job + spare time which is easier to answer.