 How do you even go about studying what happens in the brain? Can you take me through the process that you went through to try and pinpoint where things, I guess, go wrong? Yeah. I mean, so I'm interested in performance at all kinds of different levels and in different tasks. And one of the first things that we actually did when I was in graduate school and first studying this is we set up a lab with a putting green and we invited professional golfers in. Yeah.