I can think of many occasions on which a blue has made me feel suddenly hopeful (turning one’s car around a sharp curve on a precipice and abruptly finding ocean; flipping on the light in a stranger’s bathroom one presumed to be white but which was, in fact, robin-egg blue; coming across a collection of navy blue bottle tops pressed into cement on the Williamsburg Bridge, or a shining mountain of broken blue glass outside a glass factory in Mexico),
