Remember when you first learned to ride a bike? You pushed off, and cranked down on the left pedal, and before you could roll to a stop on the grass, you magically made the transition to the right pedal, and then the left again? You wobbled all the way across the yard and turned a big arc back to the driveway, and rolled to a stop by the front porch. You were so high up, and moving so fast. Then when you started riding your bike to school, and you watched your shadow racing along on the pavement beside you, wondering why the spokes near the hub cast a shadow; but out by the rim, they were just a blur…
That's why I ride a bike.