. ♪ welcome back to this bloomberg businessweek debrief. my conversation with ginni rometty.er she laid out her vision for artificial intelligence, i asked her how she responds to those who say she is making too much of it. ginni: ibm is an $80 billion company. when people say why hasn't this grown ibm by two, i think that is an unrealistic expectation. it is an era and you teach these systems. watson is exactly where we thought it would be. a great example, and i think when you are a pioneer, people shoot. not deadly, but they shoot. health care, as an example, i remember when we did our first oncology teaching watson. the first cancer, it took the doctors a year. this is another key point about professional ai. doctors don't want a black-and-white answer, nor does any profession. when you interact with ai, you don't want to say, here is an answer. a doctor wants, ok, giving the possible answers. tell me why you believe it. can i see the research, evidence, percent confidence? that is what we are doing. the first cancer took almost a year. we are down to less than 30 days. w