It seems like a lot until you take into account a woman of middling weight wearing high(ish) heels, which (when in good condition) often have a "footprint" of a

It seems like a lot until you take into account a woman of middling weight wearing high(ish) heels, which (when in good condition) often have a "footprint" of about 1/16 of a square inch (and much less if, as is often the case since the lift material doesn't last very long, the heal has been worn through to the pin).