The Ban Treaty is now open for signature, and over 50 states were reported to have signed on its first day. It is one of the few points of bright optimism in an otherwise very dark sky overshadowing global nuclear diplomacy, though equally it has its downsides and risks. There will now be a concerted effort by campaigners to achieve the 50 ratifications necessary for entry into force. But this effort may not be the most important dimension of the issue in the near future. It may instead be time to refocus on the step-by-step approach often assumed to be alternative, but in reality is the only means to achieve concrete progress.