Back when I was in high school, I practiced my musical instruments. One of the ones I played, hammered dulcimer, sounded good even when I was just banging on the strings. Sometimes when I would play a piece (and I remember myself being pretty good) weird, accidental, awesomely cool things would happen. And I was concerned that when I got really good, those amazing accidents, the ones where I made a change in a piece by accident that made it "my own" wouldn't happen anymore.
I needn't have worried.
Also, today on Salon there's an article about Apophis (not sure how long that link will last...) so I guess I should work on that story. (ETA: you must watch the video there. The wailing shrieking music is awesome.)