Not So Zwift When I left the cozy confines of St. Petersburg, Florida, and moved to the frozen tundra of Chattanooga, I had an epiphany. Not the kind where Jesus descends in a shaft of heavenly light and shows you how to heal lepers. This epiphany came after several months of lying to myself—imagining that I could ride my bike throughout the winter and that the mountains weren’t really as high as everyone, including surveyors, cartographers, and the mountains themselves, claimed they were. As fall rolled into winter, and winter became increasingly belligerent and haughty, I began to understand why people didn’t ride their bicycles up there that time of year: Every one of them was smarter than I was and possessed a working knowledge of what dying from exposure meant. I lasted until the beginning of January before realizing there was a limit to how many layers of clothing I could wear and still mount a bicycle without the assistance of a crane. I also discovered that a balaclava restric...