In American prisons, which are extraordinarily violent places, the most vicious form of punishment is simply to lock a person in an empty room for years with absolutely nothing to do. This emptying of any possibility of communication or meaning is the real essence of what violence really is or does.
David Graeber, The Utopia of Rules: On Technology, Stupidity, and the Secret Joys of Bureaucracy
prison, solitary-confinement, violence