At the End of the World there is blackness doing the (im)possible. This essay considers the (im)possibility of debate in our contemporary crisis through an examination of the domestication of potentiality in rhetorical dialectic. Debate, in its presupposition of stasis, parallels sovereignty's ontologizing operations of antiblack racial terror that suspend contingency. Meanwhile, blackness was already getting it done. The U.S. Civil War serves as a privileged example for thinking through blackness as the groundless constitutive outside to the possible that yet gestures toward other generative moments found in refusal of the disappointing options that pass for politics offered to us today.