My Psych teacher seems convinced that the only direction art can go in the future is into the form of a pill or brain cap. The purpose of art now is to stimulate, question, or evoke some kind of a reaction. In most cases, it's about the experience, not the literal piece.
So, logically, with time, the actual pieces won't need to exist at all, only the experience. Artists will become chemists and scientists. They will find the exact way to evoke the reaction and experience they want for their viewers through a pill or contraption that stimulates the exact spots in the brain that give that specific response.
That scares me a little bit. Even if I don't believe it.