I was on the riverwalk slash waterfront in Old Town Alexandria yesterday. Cloudy but the temperature was reasonable. Not a lot of people. But the day was young. Restaurants were setting service getting ready for the lunch crowd. Shops were just opening their doors. I was not paying close attention to the world around me until I looked up and saw this young person was coming down the walkway on the rear wheel of the bike, treating it like a unicycle. And I don't mean just for a few feet or yards, I mean they were on the bike for the entire time they were in view! I was envious of the skill, dexterity, and the obvious fun. So I imagined myself on that bike, that made me smile, and I moved on.