Answer:
Krakauer is concluding, from what he knows of McCandless, that he is a sane individual, if not brilliant. However, Krakauer had an experience very similar and can relate to McCandless and his hunger for adventure. He does not think McCandless was batty but as an explorer The narrative works almost as a countdown, starting on July 8, 1992 with McCandless’s return to the bus after finding the Teklanika too flooded, pauses the narrative for a discussion of his physical decline, then enumerating each remaining day at a time. His quotations from McCandless’s diary adds to the poignancy and drama of these last days, as does the inclusion of the detail that McCandless wanted to leave the wild. His diary records that he is now trapped, despite his desire to return, lending the chapter a fatal tone at the same time that Krakauer builds narrative urgency.
Step-by-step explanation: