 It's such a simple thing. I think the other thing we have to remember is that our ancestors have been walking for millennia. In fact, walking made us human, really. It was walking that enabled us to move on from being an ape or a primate and become a human being, a Homo sapiens. So it's partly that it's so much in our DNA. And in the last, what is it, 20 years, really, we've just walked less and less and less. Yeah. Yeah.