 there's a mechanism that could potentially, um, explain this, this phenomenon. Uh, and, uh, but you know, it hasn't, it hasn't really been directly observed. So it's, it's tricky. It's a hard thing to try to prove. Do the pole shifts, Mark also explain the ice ages that have come and gone? Exactly. And that was what Hapgood, uh, was motivated to do. Uh, the North American ice age, uh,