Faulty vision ...

... Violence That Art Didn’t See Coming. (Hat tip, Dave Lull.)

... every now and then, it seems, a gap is exposed. Events occur; art offers no guidance. The powers of imagination and attunement falter. Artists suffer a collective loss of awareness. “The culture” emits signals, but they are picked up only fitfully or are missed altogether.

Art is prophetic only in a general sense. Nietzsche quite correctly foresaw that "there will be wars such as have never happened on earth," but he did not specifically foretell the 20th century's two world wars. Indeed, when the first of those wars broke out, most writers seem to have agreed with the Kaiser that it would all be over by Christmas.