As a car free person, and as a person who likes bikes for their own sake, I tend to pay attention to the numbers of other bicyclists that I see. Lately, I've noticed a very significant increase in the number of bicycles I see around town. On rides where I was the only cyclist in sight a year ago, I now see a dozen or more other riders. A couple of my coworkers now commute by bike on a daily basis, which never happened before. More significantly, bike racks that used to be totally empty are now totally full; on a few occasions, I've even had trouble fiinding a decent spot to lock up my bike. In particular, I see a lot more fixies, which surprises me, since there are a lot of BIG hills around here.. My impression is that there has been a sudden surge of bicycle use in my town. Is this merely a result of a fevered imagination? Is it unique to Seattle, perhaps a result of cultural diffusion from Portland not too far to the south? What's happening where you live?