I feel like sometimes the best intention people who got over their skis on this stuff were so focused on the technology that they lost sight of some of this bigger stuff. I spend half a class every year just on the taxonomy and the terminology. And then we also look at videos of certain vehicles that you find many of them on YouTube, obviously, that then crash with driver assistance technology being deployed. There's under trust that develops in drivers and but there's also a lot of over trust and more recently we've seen a lot of examples of that over trust developing.