"ECHO is a new type of patent-protected persistence of vision (PoV) display technology which temporarily and safely prints an image directly onto the viewers' eye. It is a revolutionary display medium for the out of home advertising industry, which has not seen disruption since the invention of the LED screen. "
If you searched for "three white teenagers" on Google Images earlier this month, the result spat up shiny, happy people in droves - an R.E.M. song in JPG format. The images, mostly stock photos, displayed young Caucasian men and women laughing, holding sports equipment or caught whimsically mid-selfie.
If you searched for "three black teenagers," the algorithm offered an array of mug shots.