[Superman]

While the climbers are in the Death Zone, they are dying. Slowly dying. And climbing.

I saw one documentary where a healthy, athletic, fairly young man was CRAWLING toward the summit because he could no longer stand. The summit was RIGHT THERE. No more than a hundred feet away. Clear blue sky, perfect weather. The sherpa who was assigned to that guy was being ordered down the mountain immediately. The guide service boss guy was telling the athlete/customer that he was directing the Sherpa down the mountain, to protect his life. The guide boss guy was telling the athlete, point blank, that if he does not descend with the Sherpa, he will DIE on Everest.

The route to the top of Everest takes you past frozen bodies. While you, the climber, are also dying, exhausted.