Crises typically expose structural problems that have often existed for a long time: unsound business models, for example, the political suppression of social problems or environmentally destructive production and consumption practices. At the same time, crises are also seen as opportunities to help new approaches achieve a breakthrough: "Never let a good crisis go to waste" is a quote that, like so many others, is attributed to Winston Churchill. Do crises promote innovation? And, asked the other way round, are innovations the answer to conditions that are structurally unsustainable and thus repeatedly produce crises? When the social sciences talk about innovative ways out of crisis situations, they do not primarily mean purely technical or purely economic innovations. After all, it is obvious that a socio-ecological transformation in response to the climate crisis, for example, cannot be achieved through technical-economic innovations alone, but that new social practices are needed, such as changed mobility habits. At the IRS, there is intensive research on social innovations, but not all researchers assess the concept of social innovation in the same way. Two researchers, the political scientist Timmo Krüger and the sociologist Ralph Richter, take a position here in the debate on social innovations.