“As product designers we can never have exactly what we want, when we want it. We have to start by understanding the really important parts and building that core functionality first, then building additional features around that core. When you’re building consumer products, getting serious leverage in the marketplace (distribution) is the most important first order goal, so you need to accomplish this as quickly as possible andt hen shift gears to build second generation features.”—The E-mail That Initiated Spotify’s Integration Into Facebook