Berlin in Advent, a taxi stand, two heavy suitcases. Karl-Theodor zu Guttenberg recently described this scene on LinkedIn, and it reads like a small parable about service in urban space. An elderly lady, a driver who stays seated, doors that can only be opened electronically, and at the end a suitcase on the asphalt. It is an episode that sticks with you because it touches a discomfort that many know: the feeling that something in everyday life is shifting.