With the advent of the industrial revolution and the subsequent demise of the authority of such agencies as the aristocracy and the church, artists were liberated from past stylistic and thematic constraints.  New agencies of value—more personal in nuance—were sanctioned by psychological inquiry as well as an assumption of the inherent sensitivity of the artistic temperament.  Such license has given away to extraordinary creativity, but at the same time has resulted in periodic estrangement of the artists within their own contexts. While the indeterminacy of abstraction broke the tyranny of illusionistic narrative, the contemporary world was conversely being fed more determinate imagery by photography and film put to the service of reportage and advertising.