The 2004 book Between a Rock and a Hard Place chronicles the experiences of Aron Ralston, an American mountain climber who survived a nearly fatal hike in the Utah desert. While Ralston was canyoneering alone in May 2003, his right forearm became trapped by a falling boulder. Unable to lift the rock, Ralston was forced to amputate his own arm in order to free himself. How many days did Ralston wait before beginning the terrible operation? Discuss