As readers probably know, I've done a bit of running in the past few weeks. October 10 I ran the Dick Collins Firetrails 50-miler , October 18 I ran the Diablo 50K , and October 24-25 I ran 95.5 miles at the SF One-Day . Actually, I technically only scored 94.4 miles because, despite hauling apples one last time to try and get another lap done in under 8 minutes, I missed it by a half second. (See pic below, which I yanked from DC-H's facebook (thanks!) via a shift-apple-4 screenshot) All during these races my knee has been hurting, pretty badly at times. That's made me think more deeply than normal about running, and I've come up with two things. One, running is fun, but sometimes only type-2 fun . Two, running on pavement sucks. First, is running fun, and do I want to keep doing it? Of course, and of course. But with my knee hurting, I haven't really wanted to do much training, and when I have gotten out, I haven't been enjoying it as much lately. It's ...