Answer:
Answer below
Step-by-step explanation:
In "Blind to Failure", Erik's advantages are that at an altitude of over 25,000 feet, the climbers have to wear oxygen masks and goggles which severely restricts their vision. This was not a problem for Erik.
Also the final stretch of the journey began at dusk which means that most of the journey was done in the darkness; the only source of lights being lamps. Darkness and Light were the same for Erik.
His disadvantage:
He had to depend on his teammates to remain in the trail. They had to give him instructions and put a bell on their back so that he could hear it and follow them.