Adventure has to do with private, personal experiences. But, the possibilities, there are millions of unclimbed mountains - I have seen in the Eastern part of Tibet, mountains 6,000-6,500 meters high, vertical walls twice as tall as the Eiger... but nobody is going there, because they aren't 8,000-meter peaks.
My father blamed me for my brother Gunther's death, for not bringing him home. He died in an avalanche as we descended from the summit of Nanga Parbat, one of the 14 peaks over 8,000m, in 1970. Gunther and I did so much together. It was difficult for my father to understand what it was like up there.
I was first to understand it was boring to go with heavy shoes to base camp. When we first tried Dhaulagiri, a very difficult approach at high altitude, we needed very heavy boots. So it was usual to wear such heavy boots to approach all base camps. But I thought this was crazy. We needed lighter shoes for many of the approaches.