And just so that we're making sure we can visualize this thing that's being rotated, and we care about the entire volume of the thing, let me draw it from a few different angles. So if I drew it from the top, it would look something like this. It would become a little more obvious. It would look something like a hat. Point up like this, and it goes down like that. It would look something like that. So we're not seeing, in this angle, we're not seeing the bottom of it.