Most of my research is in a field called human computer interaction, which is more or less the study of usury inter faces. Ther's just so many more inner faces these days. And for me, specifically how people interact, how people use computers to teach and learn programming and data science. We have like a giant table in that paper that takes up one whole page. It was really fun to have you on to talk about that, and i suspect that list is longer, not shorter now.