Over three years, researchers, artists, and activists collaborated on eight public engagement experiments in five countries. All focused on building critical consciousness about digital futures. The interventions worked: Once participants broke through the seamlessness of interface surfaces, they immediately thought more critically about how digital platforms actually operate. Yet even as participants reached into these black boxes, they didn't imagine alternatives. This article offers a critical theory reading of this theme of inevitability, using the concept of discursive closure, whereby we can see how particular values and (infra)structures are naturalized, neutralized, and legitimated, closing off discussion of alternatives that might counter current hegemonic power. This article highlights the importance of confronting the limits of the imagination in speculative interventions, as well as the need, in ongoing interventions focused on imagining different digital futures, to iteratively focus on creative ways to identify and then overcome the current resignation to the inevitable.