Chris wants to do things on his own, he doesn't want anyone else's help. Chris doesn't tell anyone where he is going. "By then Chris was long gone.""Quotation from Into the Wild" (Krakauer).
Central idea 2
When Chris is talking with his parents his emotions are sad. He tells them he will be gone for a while. "His exact words were “I think I’m going to disappear for a while.”
Chris's parents then go to his apartment because they haven't heard from him in a while. When they get to his apartment nobody's there. " …it was empty and a FOR RENT sign was taped to the window."
Chris wants to escape from reality. He's tired of the people and his parents. " ...he was unencumbered, emancipated from the stifling world of his parents and peers, a world of abstraction and security and material excess, a world in which he felt grievously cut off from the raw throb of existence.
It starts to storm, Chris decides to leave. His engine gets wet and his car doesn't start. "But it did get the engine wet, so wet that when McCandless tried to start the car soon thereafter, the engine wouldn’t catch, and in his impatience he drained the battery."
Chris needed help but he didn't want to ask the authorities. He knew they were going to question him. " McCandless had no choice but to walkout and notify the authorities of his predicament. If he went to the rangers, however, they would have some irksome questions for him."