[He takes a deep breath.] .8% of the American population develops schizophrenia. The odds are minuscule that two people would independently develop identical hallucinations and delusions. If we were suffering from shared psychotic disorder, that would require that I was a dominant personality, which I'm not, or that we had both developed schizophrenia independently and influenced each other, and the odds for that are, once again, minuscule.

[Unless Garcia's a hallucination too, but that's a rabbit hole he doesn't want to go down. He's trying to logic himself into not believing he's crazy.

Garcia, just keep telling him he's not crazy. He trusts you. He'll believe it eventually.]