Looks like a software bug contributed to last summer's blackout in the Northeast (via Ars). Not very surprising, but disturbing nonetheless.
Sometimes, I'll listen to a "great" piece of music many times, thinking that it's nice but not really seeing what all the fuss is about. Then, for no obvious reason, on some listening the piece will come together for me in a whole new way, and I'll be completely blown away. I can distinctly remember having this experience with Mahler's 2nd Symphony as I was riding a train across India a couple of years ago. Yesterday afternoon and this morning, it's been happening with Wagner's Parsifal; it's like I was listening to a completely different work before. Why does this happen? Maybe my brain had to be reconfigured in some way by the first few listenings to really be able to absorb the piece? Anyway, it's very cool when it does happen.