 And if your brain gets disrupted, then the models break down, and that's what we call hallucinations. Christine, for you, when you said that you've had hallucinations at times of being very, very exhausted, were you aware that you were hallucinating? Not at all. I thought it was real, because I was hearing bullets outside the window. No, really? Yeah. How long did that last? About 10 to 15 minutes. David, is that normal?