The sudden appearance of the blue seats reminded me of the rarity of blue in nature; how the cosmos cannot easily conjure blue, yet we do it with no effort. Red seats were war, riders knocked each other to get a parking spot, they toothed and nailed their way to empties and chucked aside those who stood there. Red seats were difficult and fraught, little more than prickly crimson flaps coddling the backside of the citizenry. In front of my very nose the red has been replaced with a calm blue.