Nash's history:
Nash could have had paranoid schizophrenia for years but no one noticed it. It is evident that delusions occur in the mind of a schizophrenic. Perhaps the first indication of Nash's delusions was when he was observing a glass in the courtyard and noticed a spectrum of light stream out of it. The colours in the light streamed out onto his friend's tie, and he imagined the tie with an assortment of shapes on it, which didn't exist in reality. "That is an awful tie," Nash remarked. Nash first started his delusions when he imagined Charles, his imaginary roommate. He would talk and carry on conversations with this man, and even his wife thought he really existed until with further research, I proved otherwise.
In part because she was so upset about Nash, his wife Alicia had a growing concern for him. During Nash's marriage, he would get phone calls from the Pentagon asking him for help to solve mathematical problems. As Nash was approaching the Pentagon, he imagined William Parcher, an FBI agent, who told him that he was needed to decode messages. Nash imagined that a numerical device was implanted into his arm so they knew he was the right person breaking these codes. Nash had a study room where he would cut out newspaper articles and try to find patterns in them. Once he made discoveries, he would go out to a "top secret" house (which was really an abandoned house) where he would put his findings in a mailbox. He imagined shootouts and other chaotic