Ruptural moments are key to long-term movement victories. Ruptural moments by themselves rarely lead to substantive changes in people’s material conditions or the dismantling of the status quo; they need to be situated within a dynamic movement ecosystem. In a ruptural moment, thousands or hundreds of thousands of people hit the streets. Second, participants are willing to engage in a huge escalation of risk. Third, ruptural moments open a window into a change in thinking — opening the eyes of a society to the fact that a dictatorship is fragile or that Indigenous sovereignty must be respected or that Black folks have a different lived experience than white folks. In other words, in changing how space or public order works, ruptural moments contest the story of the dominant culture. Movement organizers can create ruptural moments by working for months in a disciplined way to achieve the scale necessary for something major to happen, or by a smaller group of organizers attempting something bold, enabling it to scale as others are captivated by the boldness of the tactic or demand and launch copycat actions or undergird the movement. And sometimes, unexpected events just happen that create ruptures.