Almost three years ago, artist Simon Weckert noticed something unusual at a May Day demonstration in Berlin: Google Maps showed there was a massive traffic jam, even though there were zero cars on the road. Soon enough, Weckert realized that it was the mass of people, or more specifically their smartphones, that had inadvertently tricked Google into seeing gridlock on an empty street. And then he decided to do it himself.
Learn about your ad choices:
dovetail.prx.org/ad-choices