Recently I watched the movie, Man On Wire - a fascinating story about a man, Phillippe Petit, who is wild about pushing boundaries, as well as exploring the remarkable blend of risk and art.  In August 1974 he tightrope walked (danced really) between the twin towers of the World Trade Center, some 1,300 ft off the ground.

Amazing? Outrageous? Or slightly insane?  I suspect it's somewhere in between, as often is the case when one taps into their passion.  Historically we may not realize someo...