His sarcasm is a use of irony to represent the lack of realism Dick Bass' impression left to amateur climbers. Perseverance cannot diminish the great physical and mental strain that burdens one in such high altitudes. The climbers on the 1996 Everest expedition would soon realize that it took more than just great determination to conquer Everest.
In conclusion, perseverance is a great quality to possess, as it requires one to have courage and a drive to reach past their comfort zone. However, it comes with many great dangers. The author conveys this idea in his book "Into thin Air". Krakauer describes perseverance that is purely motivated by greed. He explains how Rob Hall's reckless decisions were partially responsible for the disastrous outcome of the story. As a guide, Hall should have more been concerned with the health and well-being of his clients rather than the money he was earning by leading them to the top of Everest. Krakauer