 but we know very little about the big picture, how it all fits together. Of course, the way we kill and maim each other, I'm not so sure we have intelligent life on this planet. Well, that's why I raised that question in the first place. Let's go to Dave in Oregon. Welcome to the show. Hi, David. Hey, how are you doing there? I'd like to ask your guest, we're talking about polar shifts, and do we know...