In 1974, performance artist Marina Abramović decided to find out just how far people would go when given total freedom. The result? One of the most shocking and talked-about experiments in modern art history: Rhythm 0. For six tense hours in a Naples gallery, Abramović stood completely still beside a table holding 72 objects — ranging from a rose, a feather and grapes to scissors, a knife, and even a loaded gun. The audience was told they could use any of the items on her however they wished. She wouldn’t move, speak or resist.