Historians will look back on this era and how the Internet changed what we value, what we consider art, the way we think, the way we define what it means to be human. In Sincerity and Authenticity, Lionel Trilling describes the changes that occurred between about 1850 and 1920, due to the Industrial Revolution and the resulting migration of people from small communities to relative anonymity in cities. Because of that paradigm shift, ideas about what it means to be an individual underwent a transformation that leeched into all areas. Art, psychology, history, marriage, gender.