In this episode we’re talking to David Lieb, creator of Google Photos. Back in 2009, YC funded his startup, Bump Technologies, which had a cool technology where you transferred your contact info from one person to another by literally bumping phones. He’ll share Bump’s ups and downs as they went from business school side hustle to hot new iOS app. He’ll talk about getting acquired by Google and ultimately transforming Bump into the wildly popular Google Photos. David recently came back to Y Combinator as a visiting group partner.