cool so here's a video that just shows it's just a clip of a mountain biker that we think is a pretty good shot of just autonomous visual tracking following so the drone is doing all this computation of course onboard in real-time based on visual tracking and we're able to kind of get some nice cinematic video here with tree occlusions with fast motion and here we're getting a shot from the front which we call lead mode which is pretty tough because it means you have to do a lot better job anticipating someone's