“It is impossible for organisations to ‘demonstrate their impact’ if they work in complex environments. Asking them to do so requires them to create a fantasy version of the story of their work. This corruption of data makes doing genuine change work harder because it is difficult to learn and adapt from corrupted data…The key shift to make here is to move from funding for “demonstrable” impact…to funding for collaborative learning and adaptation. The evidence shows, this is how real impact is made.”