What is unknown? What is unknowable? The future? The Truth? The essence of things? Can we experience the unknown? Should we fear it? Should we embrace it? Are there limits to what is knowable? How are those limits constituted? By whom? To what end? Is it possible to know things that are unspeakable, unsayable, ineffable? Are there ways of knowing that cannot be contained in archives? What is the role of the unknown in advancing us culturally, politically, ethically, morally, aesthetically, scientifically?