Though it is in opposition to the 'bourgeois' theories of economics, and though this opposition leads it to use the project of a radical reversal of History as a weapon against them, that conﬂict and that project nevertheless have as their condition of possibility, not the reworking of all History, but an event that any archaeology can situate with precision, and that prescribed simultaneously, and according to the same mode, both nineteenth century bourgeois economics and nineteenth century revolutionary economics.