The Principles of Product Development for Spotify

Spotify co-founder says he started out as an engineer before becoming a product person. He thinks about what's the shortest way between point from point A to point B? And that means that you quite often have to go through iteration of designs until you got that one. At Spotify, for instance, we quite often make three or four decisions and test them at the same time in order to see how users are reacting to it.