It's that he so often seemed to arrive at the answer before he could explain how he got there. What really strikes me is that this sequence, answer first and explanation later, is exactly what happens every time we use a large language model. What the Answer Doesn't Show YouLet's look at this in another way. For centuries, a good answer was reasonably solid evidence of a good mind. It's what's left standing behind the shadow, once the answer arrives first.