 I wrote the book Apple Watch for Dummies, but you need an iPhone for the most part. The Fitbits and the Pixels and the Samsung watches are just as good, I think, for the most part. I'm a Fitbit guy myself. When I went into Sierra Tucson last year, they gave us the only way you could tell time because it's at a clinic, right? So they don't put clocks up because they're trying to keep you from dealing with reality while they teach you how to deal with reality. They put Fitbits on us and be like, hey, now you can know the time. And I was like, right on. And then you found out later on, that's how they track you, Mark.