 AI is sometimes perceived as a quest to build an artificial human, and sometimes people talk about augmented intelligence. It's not unlike using a calculator or using Google. It's the idea that this technology augments our abilities and makes us better at what we do. And what it means to us is building computer programs that help society, help people, help scientists. A case in point, we have a program called Semantic Scholar, which is revolutionizing scientific search. You know, scientists have their own specialized search, and like all of us, they're subject to information overload. They're drowning in a sea of scientific papers and so on. Our technology uses AI to help them home in on the right results, help them formulate better hypotheses so that problems like climate change, like vaccines for Ebola and Zika, all those things can progress more efficiently with the Semantic Scholar program helping the scientists. I am an AI optimist. I see huge benefits where AI can help us solve humanity's thorniest problems.