Revolutions are serious business. Just recall the grumpy faces of 20th-century revolutionaries like Lenin, Mao, Fidel, and Che. They could barely crack a smile. But fast-forward to the protests of the 21st century, and you see a new form of activism at work. The ominous scowls of revolutions past are replaced by humor and satire. Today's non-violent activists are inciting a global shift in protest tactics away from anger, resentment, and rage towards a new, more incisive form of activism rooted in fun: "Laughtivism."