Bill Gates just owned the guy ! Amazing ... the interviewer tried to push the guy but he knows exactly what to do.
From my view, Mr Bill and Microsoft cant stop evolving because of the bugs. They are right on focusing in new features rather than on bugs. The problem is building to complex software. That´s the mistake, on my opinion. Sometimes i use office 2000 to write some document and i don´t feel any difference from the 2007 ... well ... both do the job. So why i need the 2007 ? Because it´s have more features ... just this. So the interviewer should go for that, in my opinion, "Mr Bill, why you guys don´t build more simple and less complex software ?" So Bill would probably answer what EVERYBODY KNOWS BUT STILL WANT TO LISTEN TO FROM HIM TO CRUSH THE GUY ... "Well, because simple software don´t give so much money"