In the past, I've actually printed out something called Smith and Moser, which is an Air Force report that was the research for it. And then I also really like using Deborah Mahey's usability engineering textbook. This is kind of like part of my training as a human factors engineer. So yeah, one of my favorite lines from Tron was when he said, I fight for the users. How do you fight for your users? That's a really lovely story. You started taking me to places like brooks and grassy, grassy knolls or not knolling. And Hadrian's Wall and piles of old stones. It's very much like countryside, northern England