The way I heard it told, he made it down ok, and was hiking out light but had nothing to heat his food with. He met someone on the trail who showed him how to bash holes in a cat food can with a rock and gave him a bottle of alcohol in exchange for his "ultralight" airline pillow. The helpful stranger told him he could probably find or make a more efficient design, and he's been too preoccupied with boil tests to resurface yet.