Barefoot, so he was significantly overweight. And his advisor, this other famous person at MIT, who was a roboticist, took his own life, and that made him. That made Russ face his own mortality, I think. I mean, you start to ask big questions about your well being. Like, holy shit, this ride can end at any moment. And so he started taking his sort of physical well being seriously, but as a result of that, not did he become, like, shredded. But he's also discovered the intellectual value, the humbling value of physical exercise. He's not preachy about it all, I don't think. I actually rarely hear him advise it to anyone. He just does it as a. Almost like meditation or something like that.