In the 70s, a Frenchman named Philippe Petit bravely and illegally walked a tightrope between the World Trade Center towers in New York.
Philippe got arrested for this stunt; however, a documentary was made because of the attention it got.
Now, instead ofusing a wire, a 1-inch piece of high strength nylon climbing webbing is used.
This sport is now known as slacklining.
Athletes became interested in this sport to improve balance.
Today there are international competitions with stunts like backflips, spins and a variety of other incredible balance acts.
If Philippe never took this risk, who knows if we would have these international competitions.
What a brave man.