Kazza the Blank One

On Friday I clocked over five million steps on "10000 steps".  That's over a couple of years and two overseas holidays.  The majority of that (let's call it four million) was done in one pair of shoes - my black walking shoes.  That's two million steps per shoe.  That's two million flexes back and forth.  And they're still going.  I just think it's pretty amazing that *any* material would survive two million flexes and not break.  Cool stuff!