Who can you trust? What is real? He tries to confide in his wife, but she is false. Try to talk to his mother and father, who also participate in the program or show (and not really his parents). The last person he trusts is his childhood friend, also a liar. He's willing to keep up the facade to keep the show going. Who can Truman turn to for the truth? This is similar to the question Hume addressed “How do you know?” No matter what the answer is to any question, the answer is "How do you know?" It is a world without certainties, without truth. Truman must have felt the frustration of not being able to get to the truth of his reality and the fear of the uncertainty all around