A think-tank with a cafe and workshop in which passers-by can try out new things: at the Fraunhofer innovation lab JOSEPHS in inner-city Nuremberg, companies present unfinished products or services - and invite curious people to test and further develop potential big sellers. Is the sleeping aid for babies already ready for everyday use? Does the pop-up tent live up to what it promises? Criticism and openness are expressly desired at JOSEPHS – six days a week, from morning to evening. A unique think tank where potential customers call the tune.