Well it looks like salty steered it into a different debate entirely, the classic "Evolutionary anthropologic podiatry" discussion.
I steered it? I just asked a follow-up. To the rather interesting assertion that since our feet evolved to gather seeds and chase antelope as teenagers in the Serengeti they don't need any support to carry 10 days worth of food, shelter, insulating clothing, bedding and navigational aids up the Golden Staircase and along the Sierra Crest. As actual adults.
