Arizona is keeping a secret. There is a sound that you may have to tune your ear to detect. Yes, of course: it's an analogy, but it's worth it.Because what you hear, if you pay a little attention, is a kind of echo of what is coming. It is the sound of construction, of that empty terrain moving to change the landscape. But beyond the literal, what catches me is what that noise promises. I don't usually do routes with a helmet between concrete skeletons, steel beams and spaces where you have to imagine everything as the architect dreamed of... although we know that it never looks exactly like that.