Say like what to do in case of conflict like human driver and some automated features. So what's your view on that. Is good to give car a priority or human judgement would be better? Some serious testing and validation is going to have to happen on that system that would fully override a human driver. Right now though, automatic braking one, that one, I guess I'm generally in favor of it. We saw a failure with the Uber vehicle. The Tesla was ruled that it was a human error. Saw that on a new story. Here the last couple of days Tesla determined it wasn't a failure of their navigation system or their autonomous system. So, I have mixed feelings on it. The adaptive cruise control, that's kind of overriding your instructions, failure to break, that seems like a positive one. Start getting into identifying objects in steering, that's where it gets dicey. So, someone in the beginning of that, I don't remember which student asked this question, someone was discussing if an autonomous vehicle is driving and there was a woman with a baby carriage, and maybe it was an old man or something, and so there's this potential ethical dilemma. Do I hit one or do I hit the other one and how do I identify that? Yeah, once you get into the steering piece to me it seems like it's a pretty dicey proposition. So, therefore a lot of testing is going to need to be done, a lot of validation, and weather conditions, again I said that repeatedly, if you can think about ice and snow and rain and fog and things that can mess up the sensors, right, how does this autonomous vehicle behave under those conditions. It's gonna be a while. It has been evolving you know. Nowadays most of the pilots do is just take off and land and fly, pretty much flight's on on autopilot but still they require the pilot's assistance. So, there'll be more of the same way. Yeah I can totally see that. Absolutely. In aircraft it's still human is more priority, like humans are given more priority. So, there are systems which tell automatically to each plane to lower or up the altitude but the ATC guys get more priority. Yeah. Traffic collision avoidance system. Right.