Ever wonder why people who make shoes never think about the fact that it rains?

FORBES: Flipboard Delivers iPad Ads That Simply Make Sense

He worried about design and comfort, and why most companies didn't make better shoes.

FORBES: Finding his footing

This phenomenon, known as salaula, explains why so few of the women along the road now wear chitenges, and also why a man on a bicycle too poor to have shoes may be wearing a formal dress shirt.

ECONOMIST: Africa 40 years on

The Natural Balance Shoe, in any case, is still made of metal, and one might be forgiven for wondering why horse owners do not just pop their equine pals into a nice, comfy set of running shoes instead of all this business with nails.

ECONOMIST: Veterinary technology

He worried about design and comfort, and why most companies didn't have the brains--or the guts--to make better shoes.

FORBES: Finding His Footing