"Tom, I seriously doubt those shoes had any arch support or heel rise. Not much different from the minimalist shoes available today."
I don't know, Justin. Maybe, maybe not. My point was that going about barefoot went out of fashion thousands of years ago, with good reason, and the feet of the vast majority of humanity have adapted to wearing shoes, to the point where any sudden reversion to going around barefoot is likely to result in a lot of injuries. This is particularly true in hard surfaced urban areas, where the majority of mankind now lives. In any case, I personally have nothing against minimalist shoes, although I am skeptical as to their efficacy on hard surfaces or for running long distances. Time will tell, as peoples' experience with them, and the corresponding orthopedic data, accumulate.