 What do you think of Tim Ferriss's four-hour body? Because this sounds, he kind of had a similar thesis. I don't know if his methods were similar to yours. Well, what's your take on what he said? His methods were not biohacking. I'm a fan of Tim. He's been on my show a couple of times. And he would do things in for our body, like if you want to learn how to swim, here's a technique to learn how to swim. If you want to learn how to do this, do it in a certain way. And there is definitely an effectiveness to this. But if I was to compare that stuff and things like kettlebell getups, like a Turkish pushup kind of thing, those are cool, but those are based on the same thing exercise has always been. There is runaway from tigers or pickup rocks. And what we did is we concentrated the rocks into kettlebells. And yes, there are fancy ways to pick up rocks that will put different muscles on than others. Like kettlebell swings are legit, right? But they're not as legit as running electrical current over your ass.