 This is obvious. Anybody could diagnose this if you have any medical knowledge at all about Parkinson's. You know, if you're a doctor, you know these are the signs of Parkinson's. Well, then, if he has it, then the next thing is, well, then, do we know when it appears he's not thinking right? Is he or is he not? The only way you can tell that is through a cognitive test. Yeah. Cognitive testing. Right, right.