 The hoarseness of his voice. I had a lot of one-on-one conversations with people on the cruise ship last week, and one lady was a registered nurse who treats Parkinson's patients. She says that's absolutely a telltale sign of Parkinson's disease, and there were reports over the weekend that a Parkinson's expert has met with Biden at the White House on numerous occasions. I don't know if that's true or false. No idea. No idea.