and aneesh chopra served as our first nation's technology officer appointed by president barak obamaand served as the virginia leader of technology and now in a technology firm. and erik has already been introduced and still a professor at m.i.t. [ laughter ] >> the way we will do this, i will pose an opening question to each of our panelists and we will move to a moderated free flowing discussion and leave the final 10 minutes for audience q & a. we will be collecting your questions on note cards which then will be brought up to the panel. david, i'm going to open it up with a question for you. you have written extensively about the nuanced relationship between technology and computers and workers, particularly noting that there are certain things that computers can do that substitute for tasks historically or traditionally performed by humans and other things computers do that complement tasks performed by humans. so, in light of your research and the framework that erik and andy have laid out for us, how do you see this all shaking out for workers? >> that's a great question. i'm