Running in endurance races has become my new obsession. It started with a race several years back called the Monster Adventure Race. It consisted of a combination of biking, land navigation, obstacle course, running, and others, and took most of the day to complete. But that was a team event. I wanted to know what I was capable of doing. So in 2011, my wife and I ran a half-marathon. I followed that one up a few months later with an Olympic-distance triathlon, and in the fall, a full marathon. Each time, I thought I had reached the pinnacle of what I could accomplish, but each time, I proved myself wrong. As I mentioned in a recent blog entry, it's all very similar to my writing. I've learned to set goals, not barriers.