Spotify's Discover Weekly succeeds because it balances the unknown and the recognizable. Familiarity breeds trust. Algorithms are the new peer recommendations.
But behind every machine is a human engine. From the curators to the avant-garde, someone has to know the difference between the good and the bad and what makes a piece of art edgy.
Art stirs emotions and requires human sensibility. When it comes to algorithms, brains and emotions are still the equalizers, for now.