Spotify Serendipity Maps People Playing the Same Song at the Same Time

Spotify already tells users what their friends are listening to. Now it's expanding that idea to international proportions, thanks to a new tool. Serendipity records where and when at least two people start playing the same song within a tenth of a second of each other. The map quickly zooms in on the two users and plays the song for a few seconds — then, it's off to the next pairing. See also: 10 Brutal Spotify Recommendations That Made Us Rethink Our Life Choices While Serendipity is streami...