Toots and the Maytals came on in my iPod playlist while I was standing at a corner waiting for a light to change, near Porter Sq. I burst in to a grin and started bouncin' a little, one hand raised, palm up to the sky. Such a perfect moment . . . reggae in bright morning sunlight and -2 degrees. And under all I was wearing, no one could possibly identify me; to them, I was the abstraction of an anonymous frozen/bundled pedestrian . . . dancing.