A couple of weeks ago I had a disturbing realization. I can no longer ride a bike. I know, it’s something you’re never supposed to forget, and I’m sure I remember how to spin the twin gyroscopes and keep the contraption upright and moving forward, it’s just that I can’t. My right knee doesn’t bend far enough to push the pedals all the way around, I get stalled at the top of the stroke on that side. Well, I could if I raised the seat high enough, but that would put me in such and awkward position that if I tried to put a foot down when I stopped I’d be in danger of going over.