pleased to have mike schroepfer at this table for the first time. welcome. >> thank you, charlie. >> rose: what does it mean to be chief technology officer? you're in charge of all the technology at facebook? >> two jobs. one, to make sure the teams have what they need to deliver products, and other foot is in the future trying to build the ten-year mission, connect the world, build a.i. and build virtual reality systems. >> rose: when you look at -- there's a mantra around facebook, i think it says move fast, break things. >> yeah. >> rose: what does that mean? you know, it means don't be afraid to try to bring the future forward. in order to do that, some things may break, you may make mistakes. if you try to do everything perfect you will never make forward progress. we try to encourage everyone in the company not to care too much about how we did it in the past but figure out what's the right thing to do. >> rose: define these terms for me. you said over that ten-year plan, it was artificial intelligence, virtual reality and connectivity. >> yea