The beginning of Chris' death

Chapters 16–18:  Into the Alaskan Wild
Chapter Sixteen: The Alaska Interior
Was McCandless crazy?
I think that McCandless was going crazy because of how his relationship with his father was going because he was now realizing that he still needs his father.
Did he have a death wish?
I think at the end of this chapter he had a death wish coming to him because he didn't want to cross the river and he decided to go back to the bus where no one had passed it since before he took it over.
Chapter Seventeen: The Stampede Trail
Was he just ignorant?
In this chapter I think that Chris was getting a little ignorant because he didn't do much anymore to keep himself alive and I think that he was now just waiting for someone to come along and save him from the condition he was in.
Chapter Eighteen: The Stampede Trail
Investigate further the wild sweet peas and wild potatoes McCandless ate?  Were they toxic?
I think that the wild sweet peas and wild potatoes that he had eaten were not toxic. How he prepared them made them bad for him I think.