This is an open access book. The start of the 21st century has seen the world shaken by protests, from the Arab Spring to the Yellow Vests, from the Occupy movement to the social uprisings in Latin America. There are periods in history when large numbers of people have rebelled against the way things are, demanding change, such as in 1848, 1917, and 1968. Today we are living in another time of outrage and discontent, a time that has already...