These readings are neither prescriptive, definitive, nor definitional. Each essay seeks out, in the work it studies, those moments that pronounce or propose futures that enable speculation, moments in which the speculator has to make promises. As Derrida says in his essay, "Between lying and acting, acting in politics, manifesting one's own freedom through action, transforming facts, anticipating the future, there is something like an essential affinity. . . . The lie is the future." Or, in the words of Werner Hamacher, "The futurity of language, its inherent promising capacity, is the ground-but a ground with no solidity whatever-for all present and past experiences, meanings, and figures which could communicate themselves in it."

These essays, though arising from deconstruction, point out the ways in which deconstruction has yet to occur, and they do so by scanning the unattainable horizons marked off by thinkers at the forefront of our modern era.