"I Think Therefore I Am"

In the Truman Show, Truman is a man whose whole entire life has been a reality show and he is finally starting to realize this fact that cameras are constantly watching his every move. This concept for the movie can relate to Descartes and his demons. These demons that Descartes possesses are there to make Descartes not know what is reality and what is fake. Truman is feeling exactly the same way. Just like Descartes he feels like he is going absolutely mental (insane) and he cannot distinguish what in his life has been actually real and what in his life has been fake. Descartes knows for certain that if he is thinking than he is real and the demon hasn't one yet. He has the famous quote "I think therefore I am" which Truman feels because he is thinking and figuring out that he has been monitored his entire life. By him thinking and figuring things out the producers (who are essentially equal to Descartes demon) wouldn't have a show and their entire industry and profit would end. They need Truman in order to survive just like the demon needs Descartes to exist so they can have something to live for and a reason that would call for them to survive. An example in the movie of this is when Truman is discovering that his life is a television show and all the people in the town are actors/actresses. At the end of the movie when Truman tries to sail away and he eventually hits a wall he is discovering that the demon cannot bother him anymore. When the voice comes out of an intercom and says that he has two options which is to stay or to leave, Truman leaves because the demon is not a burden anymore. He can now think on his own without his life being controlled which in the end makes Truman fight off his demon and making him an actually person.  Truman has been hidden the truth like the demon holds the truth from Descartes.

Truman discovering that his world has been a lie