It is not a solved problem. Here's an example. In the late-80s and early-90s, emerging sampling technology gave birth to a bunch of new kinds of music, which

It is not a solved problem. Here's an example. In the late-80s and early-90s, emerging sampling technology gave birth to a bunch of new kinds of music, which used samples of existing music to great effect. The best of these were not rip-off art forms, they were amazingly original and innovative. And then the lawyers came in and destroyed everything. I've been sad for a long time about the loss of all that new art, and I'm very happy to see the pendulum finally start to move in the other direction.