I'd spoken with Rob Hall of the Watson project during my freshman year of college at a technical talk having seen it Jeopardy! but not knowing much about the technical aspects of what goes into generating an answer based on natural language processing. He took the time to explain to me and a small group of students who stayed for about an hour afterwards about how to go about attacking problems that require both expertise and parallelization on a scale such that confidence levels could be established for each logical answer generated from a tree of possibilities. A great man and team who know the value of educating potential future employees and sharing the knowledge that went into solving a hard problem. I'd typed this up before realizing you were talking about the former CEO rather than the project so I'd thought to post it anyway.