 The water's always in motion. Why is that important? If you don't have the water moving, you'll cold adapt within a couple months depending on the person. Then you're not challenging yourself. You're basically cheating. Even if you use a lot of ice, you're self-insulating. I don't know if you cried still water recently, but I've been doing it night and day difference. Is it really? The first 30 seconds, it's like, okay, this is cold. Yeah. And then you get used to it and then it's like your body doesn't have that fight or fight going off like you do in the blue cube. Where it's like every second you're like, crap, crap.