Moutain climbing puritans

Someone else has died on Everest while climbing without additional oxygen.

"Frank was a purist at heart," Pizarro said. "He was adamant that it was him and the mountain."

What I don't understand is how climbing without oxygen is "pure". There are almost an infinite number of combinations of leaving out necessary equipment in the name of "purity".

What about climbing without those fancy Gore-Tex jackets? Ice axes? Boots?

Even Sir Edmund Hillary, the first person to climb Everest, used oxygen.

There's "pure" and then there's "stupid".