dr. sharpless needed further validation. he wanted to see if watson could find the same genetic mutation that his team identified when they made treatment recommendations for cancer patients. >> we did an analysis of 1,000 patients where the humans meeting in the molecular tumor board doing the best they could do had made recommendations. so not at all hypothetical exercise. real world patients where we really conveyed information that could guide care. in 99% of those cases watson found the same thing the humans recommended. that was encouraging. >> did it encourage your confidence in watson? >> yeah. it was nice to see -- it also encouraged my confidence in the humans. but the probably more exciting part about it is in 30% of the patients new. and so that's 300-plus people where watson identified a treatment that a well-meaning hard-working group of physicians hadn't found. >> because? >> the trial had opened two weeks earlier, a paper had come out in some journal no one had seen, you know, a new therapy had become approve

dr. sharpless needed further validation. e wanted to see if watson could find the same genetic mutations that his team identified when they make treatment recommendations for cancer patients. >> sharpless: we did an analysis of 1,000 patients where the humans meeting in the molecular tumor board, doing the best that they could do, had made recommendations. so, not at all a hypothetical exercise. these are real-world patients where we really conveyed information that could gar... guide care. in 99% of those cases, watson found the same thing the humans recommended. that was encouraging. >> rose: did it encourage your confidence in watson? >> sharpless: yeah, it was... it was nice to see that, well, it was also... it encouraged my confidence in the humans, you know. ( laughter ) yeah, you know. >> sharpless: but the probably more exciting part about it is, in 30% of the patients, watson found something new. and so, that's 300-plus people where watson identified a treatment that a well-meaning, hard-working group of physicians h