 division, so he did all of the diving down in Antarctica. And he used to talk about going down under the sea ice. He talked to me about going down under the sea ice. And he said that when you get down there, the water is so incredibly clear that you can see huge distances kind of through the water. It's just like diving. And he said it's very disconcerting because you feel like you're not actually in the water. You're just kind of floating in space.