Right, the premise, "What makes solar panels expensive" is flawed. They are not expensive, they are astonishingly cheap. But maybe he just means that something

Right, the premise, "What makes solar panels expensive" is flawed. They are not expensive, they are astonishingly cheap. But maybe he just means that something will keep their cost above zero, which is true. But their cost per watt nameplate capacity will continue on down with the amount of material they need, and the amount of labor going into them. Today they still need a frame, and glass, and are packed in boxes onto pallets and shipped; to be mounted on rails and brackets. But soon enough they will have no glass, and no frame, and be shipped in big rolls to be stretched between posts.