A couple of weeks ago, I was taking the Canada Line out to the airport. Unexpectedly, there were no ads in the frames on the trackside wall. I wasn't sure if they were in the midst of changing them, ran out of time and had to clear off the track, or if it was some sort of Canada Line art installation I wasn't hip enough to understand. The ad-free frames did look a bit like mirrors - but non-reflective, so you couldn't actually see yourself in them. What the heck, if I say it's art, it's art. Right?