"20 percent or so of most frequently occurring crashes accounted for more than 80 percent of all crashes"—our discovery of the distribution of bugs and crashes
I spent ten years, nearly half my career at Microsoft, on Watson. I loved every minute of it. It is a common observation that working in large corporations is sclerotic, with orgs opposing each other's efforts. Indeed, Mr. Sinofsky has documented some of these at Microsoft. I would like to offer the opposite: Watson touched every part of Microsoft, and in virtually every instance, I had tremendous support and encouragement. From the product teams through upper management, people wanted us to succeed. We collected a staggering amount of data, did our level best to sort, sift, and distribute it, and watched the results with great satisfaction.
This was a superb section. The "Watson for assistance" triggered so many awesome memories for me, around Content Watson and the Chaiman award of 2004 (I think!).