I met my old friend Dave from Phoenix yesterday for a ride through Tucson. Dave is 77, and can still ride a multi-day tour from Phoenix to Patagonia AZ. He's staying in motels. I rode 20+ miles across town to meet him at his motel in the morning, rode about 20 miles south through Tucson with him, with a couple of bakery stops, then finished a loop home for 55 flat miles.

Dave's one of the most effective people I've ever met. After Vietnam-era Army service (MP in Germany), he made a career in public housing with the City of Phoenix, marked with several important milestones. Then he volunteered to help build the Arizona Trail, became executive director, and presided over completion of the trail in 2012. I met him then as a new trail volunteer, ten years his junior. We connected at one of the final work events one weekend in Flagstaff, which I cycled 110 miles to from my house in Prescott. We started cycling together, and I helped him run a bicycle recycling program at the large St Vincent de Paul operation in Phoenix (800+ bikes/year). Pretty much everything he's done has improved the world. I can't think of a better role model.