I'm in the middle of a book now about that. It's called irresistible. Let me find that. It's on my instagram, too. Jamie, irresistible is this book that is about how people are addicted. It's by Adam Alter, and it's about how people are addicted to your phones and applications. But it also goes into just the actual physical aspect of addiction and how it works on the brain and how we always like to think of addiction as, like, it's something that you get hooked physically and you can't live without it. No, no. It's something that you have a compulsion to use, and you can't avoid that compulsion for some reason. And it doesn't even necessarily have to be good.