There was first theory of devolution, on handbags. Now time for next.
#2 : Women will loose strength in their heel, toes gonna get stronger though [refer the pic].
 : Unless classical Indian and Russian dances, get popular again.
: Unless High heel shoes get some kind of ban on it, like Fatwa etc.
: Unless “low heel- high toe shoes” become popular ( I am thinking of inventing one )
and this is how they look in X-ray